Beispiel #1
0
    def __init__(self, options):
        gr.hier_block2.__init__(
            self, "fbmc_transmit_path", gr.io_signature(0, 0, 0), gr.io_signature(1, 1, gr.sizeof_gr_complex)
        )

        common_options.defaults(options)

        config = self.config = station_configuration()

        config.data_subcarriers = options.subcarriers
        config.cp_length = 0
        config.frame_data_blocks = options.data_blocks
        config._verbose = options.verbose
        config.fft_length = options.fft_length
        config.dc_null = options.dc_null
        config.training_data = default_block_header(config.data_subcarriers, config.fft_length, config.dc_null, options)
        config.coding = options.coding
        config.fbmc = options.fbmc
        config.adaptive_fbmc = options.adaptive_fbmc

        config.frame_id_blocks = 1  # FIXME

        # digital rms amplitude sent to USRP
        rms_amp = options.rms_amplitude
        self._options = copy.copy(options)

        config.block_length = config.fft_length + config.cp_length
        config.frame_data_part = config.frame_data_blocks + config.frame_id_blocks
        config.frame_length = config.training_data.fbmc_no_preambles + 2 * config.frame_data_part
        config.subcarriers = config.data_subcarriers + config.training_data.pilot_subcarriers
        config.virtual_subcarriers = config.fft_length - config.subcarriers - config.dc_null

        # default values if parameters not set
        if rms_amp is None:
            rms_amp = math.sqrt(config.subcarriers)
        config.rms_amplitude = rms_amp

        # check some bounds
        if config.fft_length < config.subcarriers:
            raise SystemError, "Subcarrier number must be less than FFT length"
        if config.fft_length < config.cp_length:
            raise SystemError, "Cyclic prefix length must be less than FFT length"

        ## shortcuts
        blen = config.block_length
        flen = config.frame_length
        dsubc = config.data_subcarriers
        vsubc = config.virtual_subcarriers

        # Adaptive Transmitter Concept

        used_id_bits = config.used_id_bits = 8  # TODO: no constant in source code
        rep_id_bits = config.rep_id_bits = config.data_subcarriers / used_id_bits  # BPSK
        if config.data_subcarriers % used_id_bits <> 0:
            raise SystemError, "Data subcarriers need to be multiple of %d" % (used_id_bits)

        ## Allocation Control
        self.allocation_src = allocation_src(
            config.data_subcarriers,
            config.frame_data_blocks,
            config.coding,
            "tcp://*:3333",
            "tcp://" + options.rx_hostname + ":3322",
        )
        if options.static_allocation:  # DEBUG
            # how many bits per subcarrier

            if options.coding:
                mode = 1  # Coding mode 1-9
                bitspermode = [0.5, 1, 1.5, 2, 3, 4, 4.5, 5, 6]  # Information bits per mode
                modulbitspermode = [1, 2, 2, 4, 4, 6, 6, 6, 8]  # Coding bits per mode
                bitcount_vec = [(int)(config.data_subcarriers * config.frame_data_blocks * bitspermode[mode - 1])]
                modul_bitcount_vec = [config.data_subcarriers * config.frame_data_blocks * modulbitspermode[mode - 1]]
                bitcount_src = blocks.vector_source_i(bitcount_vec, True, 1)
                modul_bitcount_src = blocks.vector_source_i(modul_bitcount_vec, True, 1)
                bitloading = mode
            else:
                bitloading = 1
                bitcount_vec = [config.data_subcarriers * config.frame_data_blocks * bitloading]
                bitcount_src = blocks.vector_source_i(bitcount_vec, True, 1)
                modul_bitcount_src = bitcount_src
            # id's for frames
            id_vec = range(0, 256)
            id_src = blocks.vector_source_s(id_vec, True, 1)
            # bitloading for ID symbol and then once for data symbols
            # bitloading_vec = [1]*dsubc+[0]*(dsubc/2)+[2]*(dsubc/2)

            test_allocation = (
                [bitloading] * (int)(config.data_subcarriers / 8)
                + [0] * (int)(config.data_subcarriers / 4 * 3)
                + [bitloading] * (int)(config.data_subcarriers / 8)
            )
            # bitloading_vec = [1]*dsubc+[bitloading]*dsubc
            bitloading_vec = [1] * dsubc + test_allocation
            bitloading_src = blocks.vector_source_b(bitloading_vec, True, dsubc)
            # bitcount for frames
            # bitcount_vec = [config.data_subcarriers*config.frame_data_blocks*bitloading]
            bitcount_vec = [config.frame_data_blocks * sum(test_allocation)]
            bitcount_src = blocks.vector_source_i(bitcount_vec, True, 1)
            # power loading, here same for all symbols
            power_vec = (
                [1] * (int)(config.data_subcarriers / 8)
                + [0] * (int)(config.data_subcarriers / 4 * 3)
                + [1] * (int)(config.data_subcarriers / 8)
            )
            power_src = blocks.vector_source_f(power_vec, True, dsubc)
            # mux control stream to mux id and data bits
            mux_vec = [0] * dsubc + [1] * bitcount_vec[0]
            mux_ctrl = blocks.vector_source_b(mux_vec, True, 1)
        else:
            id_src = (self.allocation_src, 0)
            bitcount_src = (self.allocation_src, 4)
            bitloading_src = (self.allocation_src, 2)
            power_src = (self.allocation_src, 1)
            if options.coding:
                modul_bitcount_src = (self.allocation_src, 5)
            else:
                modul_bitcount_src = bitcount_src
            mux_ctrl = ofdm.tx_mux_ctrl(dsubc)
            self.connect(modul_bitcount_src, mux_ctrl)
            # Initial allocation
            self.allocation_src.set_allocation([4] * config.data_subcarriers, [1] * config.data_subcarriers)
            if options.benchmarking:
                self.allocation_src.set_allocation([4] * config.data_subcarriers, [1] * config.data_subcarriers)

        if options.lab_special_case:
            self.allocation_src.set_allocation(
                [0] * (config.data_subcarriers / 4)
                + [2] * (config.data_subcarriers / 2)
                + [0] * (config.data_subcarriers / 4),
                [1] * config.data_subcarriers,
            )

        if options.log:
            log_to_file(self, id_src, "data/id_src.short")
            log_to_file(self, bitcount_src, "data/bitcount_src.int")
            log_to_file(self, bitloading_src, "data/bitloading_src.char")
            log_to_file(self, power_src, "data/power_src.cmplx")

        ## GUI probe output
        zmq_probe_bitloading = zeromq.pub_sink(gr.sizeof_char, dsubc, "tcp://*:4445")
        # also skip ID symbol bitloading with keep_one_in_n (side effect)
        # factor 2 for bitloading because we have two vectors per frame, one for id symbol and one for all payload/data symbols
        # factor config.frame_data_part for power because there is one vector per ofdm symbol per frame
        self.connect(bitloading_src, blocks.keep_one_in_n(gr.sizeof_char * dsubc, 2 * 40), zmq_probe_bitloading)
        zmq_probe_power = zeromq.pub_sink(gr.sizeof_float, dsubc, "tcp://*:4444")
        # self.connect(power_src, blocks.keep_one_in_n(gr.sizeof_gr_complex*dsubc,40), blocks.complex_to_real(dsubc), zmq_probe_power)
        self.connect(power_src, blocks.keep_one_in_n(gr.sizeof_float * dsubc, 40), zmq_probe_power)

        ## Workaround to avoid periodic structure
        seed(1)
        whitener_pn = [randint(0, 1) for i in range(used_id_bits * rep_id_bits)]

        ## ID Encoder
        id_enc = self._id_encoder = repetition_encoder_sb(used_id_bits, rep_id_bits, whitener_pn)
        self.connect(id_src, id_enc)

        if options.log:
            id_enc_f = gr.char_to_float()
            self.connect(id_enc, id_enc_f)
            log_to_file(self, id_enc_f, "data/id_enc_out.float")

        ## Reference Data Source
        ber_ref_src = ber_reference_source(self._options)
        self.connect(id_src, (ber_ref_src, 0))
        self.connect(bitcount_src, (ber_ref_src, 1))

        if options.log:
            log_to_file(self, ber_ref_src, "data/ber_rec_src_tx.char")

        if options.log:
            log_to_file(self, btrig, "data/bitmap_trig.char")

        ## Frame Trigger
        ftrig_stream = [1] + [0] * (config.frame_data_part - 1)
        ftrig = self._frame_trigger = blocks.vector_source_b(ftrig_stream, True)

        ## Data Multiplexer
        # Input 0: control stream
        # Input 1: encoded ID stream
        # Inputs 2..n: data streams
        dmux = self._data_multiplexer = stream_controlled_mux_b()
        self.connect(mux_ctrl, (dmux, 0))
        self.connect(id_enc, (dmux, 1))

        if options.coding:
            fo = trellis.fsm(1, 2, [91, 121])
            encoder = self._encoder = trellis.encoder_bb(fo, 0)
            unpack = self._unpack = blocks.unpack_k_bits_bb(2)
            self.connect(ber_ref_src, encoder, unpack)

            if options.interleave:
                int_object = trellis.interleaver(2000, 666)
                interlv = trellis.permutation(int_object.K(), int_object.INTER(), 1, gr.sizeof_char)

            if not options.nopunct:
                bmaptrig_stream_puncturing = [1] + [0] * (config.frame_data_blocks / 2 - 1)
                btrig_puncturing = self._bitmap_trigger_puncturing = blocks.vector_source_b(
                    bmaptrig_stream_puncturing, True
                )
                puncturing = self._puncturing = puncture_bb(config.data_subcarriers)
                self.connect(bitloading_src, (puncturing, 1))
                self.connect(self._bitmap_trigger_puncturing, (puncturing, 2))
                self.connect(unpack, puncturing)
                last_block = puncturing

                if options.interleave:
                    self.connect(last_block, interlv)
                    last_block = interlv

                if options.benchmarking:
                    self.connect(last_block, blocks.head(gr.sizeof_char, options.N), (dmux, 2))
                else:
                    self.connect(last_block, (dmux, 2))
            else:
                if options.benchmarking:
                    self.connect(unpack, blocks.head(gr.sizeof_char, options.N), (dmux, 2))
                else:
                    self.connect(unpack, (dmux, 2))

        else:
            if options.benchmarking:
                self.connect(ber_ref_src, blocks.head(gr.sizeof_char, options.N), (dmux, 2))
            else:
                self.connect(ber_ref_src, (dmux, 2))

        if options.log:
            dmux_f = gr.char_to_float()
            self.connect(dmux, dmux_f)
            log_to_file(self, dmux_f, "data/dmux_out.float")

        ## Modulator
        mod = self._modulator = generic_mapper_bcv(config.data_subcarriers, config.coding, config.frame_data_part)
        self.connect(dmux, (mod, 0))
        self.connect(bitloading_src, (mod, 1))

        if options.log:
            log_to_file(self, mod, "data/mod_out.compl")
            modi = blocks.complex_to_imag(config.data_subcarriers)
            modr = blocks.complex_to_real(config.data_subcarriers)
            self.connect(mod, modi)
            self.connect(mod, modr)
            log_to_file(self, modi, "data/mod_imag_out.float")
            log_to_file(self, modr, "data/mod_real_out.float")

        ## Power allocator
        pa = self._power_allocator = multiply_frame_fc(config.frame_data_part, config.data_subcarriers)
        self.connect(mod, (pa, 0))
        self.connect(power_src, (pa, 1))

        if options.log:
            log_to_file(self, pa, "data/pa_out.compl")

        if options.fbmc:
            psubc = pa
        else:
            psubc = self._pilot_subcarrier_inserter = pilot_subcarrier_inserter()
            self.connect(pa, psubc)

            if options.log:
                log_to_file(self, psubc, "data/psubc_out.compl")

        subcarriers = config.subcarriers

        # fbmc_pblocks_timing = self._fbmc_timing_pilot_block_inserter = fbmc_timing_pilot_block_inserter(5,False)

        oqam_prep = self._oqam_prep = fbmc_oqam_preprocessing_vcvc(config.subcarriers, 0, 0)
        self.connect(psubc, oqam_prep)

        fbmc_pblocks = self._fbmc_pilot_block_inserter = fbmc_pilot_block_inserter(5, False)
        self.connect(oqam_prep, fbmc_pblocks)
        # log_to_file(self, fbmc_pblocks, "data/fbmc_pblocks_out.compl")
        # fbmc_insert_pream = self._fbmc_insert_pream = fbmc_insert_preamble_vcvc(M, syms_per_frame, preamble)
        # log_to_file(self, oqam_prep, "data/oqam_prep.compl")
        # log_to_file(self, psubc, "data/psubc_out.compl")
        # fbmc_pblocks = fbmc_pblocks_timing
        # log_to_file(self, fbmc_pblocks, "data/fbmc_pblocks_out.compl")

        beta_mult = self._beta_mult = fbmc_beta_multiplier_vcvc(config.subcarriers, 4, 4 * config.fft_length - 1, 0)
        self.connect(fbmc_pblocks, beta_mult)
        log_to_file(self, beta_mult, "data/beta_mult.compl")

        ## Add virtual subcarriers
        if config.fft_length > subcarriers:
            vsubc = self._virtual_subcarrier_extender = vector_padding_dc_null(
                config.subcarriers, config.fft_length, config.dc_null
            )
            self.connect(beta_mult, vsubc)
        else:
            vsubc = self._virtual_subcarrier_extender = beta_mult

        if options.log:
            log_to_file(self, vsubc, "data/vsubc_out.compl")

        ## IFFT, no window, block shift
        ifft = self._ifft = fft_blocks.fft_vcc(config.fft_length, False, [], True)
        self.connect(vsubc, ifft)

        if options.log:
            log_to_file(self, ifft, "data/ifft_out.compl")

        # FBMC separate stream + filterbanks
        separate_oqam = self._separate_oqam = fbmc_separate_vcvc(config.fft_length, 2)
        poly_netw_1 = self._poly_netw_1 = fbmc_polyphase_network_vcvc(
            config.fft_length, 4, 4 * config.fft_length - 1, False
        )
        poly_netw_2 = self._poly_netw_2 = fbmc_polyphase_network_vcvc(
            config.fft_length, 4, 4 * config.fft_length - 1, False
        )
        overlap_p2s = self._overlap_p2s = fbmc_overlapping_parallel_to_serial_vcc(config.fft_length)

        self.connect(ifft, (separate_oqam, 0), poly_netw_1)
        self.connect((separate_oqam, 1), poly_netw_2)
        self.connect(poly_netw_1, (overlap_p2s, 0))
        self.connect(poly_netw_2, (overlap_p2s, 1))

        ## Pilot blocks (preambles)
        # pblocks = self._pilot_block_inserter = pilot_block_inserter2(5,False)
        # self.connect( overlap_p2s, blocks.stream_to_vector(gr.sizeof_gr_complex,config.fft_length/2),  pblocks )

        # log_to_file(self, pblocks, "data/fbmc_pilot_block_ins_out.compl")

        if options.log:
            log_to_file(self, pblocks, "data/pilot_block_ins_out.compl")

        ## Cyclic Prefix
        # cp = self._cyclic_prefixer = cyclic_prefixer(config.fft_length,
        # config.block_length)

        # cp= blocks.vector_to_stream(gr.sizeof_gr_complex, config.fft_length/2)
        # self.connect(pblocks, cp )
        # self.connect( overlap_p2s,blocks.stream_to_vector(gr.sizeof_gr_complex,config.fft_length/2), cp )

        lastblock = overlap_p2s

        if options.log:
            log_to_file(self, overlap_p2s, "data/overlap_p2s_out.compl")

        # Digital Amplifier for resource allocation
        if config.adaptive_fbmc:
            rep = blocks.repeat(gr.sizeof_gr_complex, config.frame_length * config.block_length)
            amp = blocks.multiply_cc()
            self.connect(lastblock, (amp, 0))
            self.connect((self.allocation_src, 3), rep, (amp, 1))
            lastblock = amp
        else:
            self.connect((self.allocation_src, 3), blocks.null_sink(gr.sizeof_gr_complex))

        ## Digital Amplifier
        # amp = self._amplifier = gr.multiply_const_cc(1)
        amp = self._amplifier = ofdm.multiply_const_ccf(1.0)
        self.connect(lastblock, amp)
        self.set_rms_amplitude(rms_amp)
        # log_to_file(self, amp, "data/amp_tx_out.compl")

        if options.log:
            log_to_file(self, amp, "data/amp_tx_out.compl")

        ## Tx parameters
        bandwidth = options.bandwidth or 2e6
        bits = 8 * config.data_subcarriers * config.frame_data_blocks  # max. QAM256
        samples_per_frame = config.frame_length * config.block_length
        tb = samples_per_frame / bandwidth
        # set dummy carrier frequency if none available due to baseband mode
        if options.tx_freq is None:
            options.tx_freq = 0.0
        self.tx_parameters = {
            "carrier_frequency": options.tx_freq / 1e9,
            "fft_size": config.fft_length,
            "cp_size": config.cp_length,
            "subcarrier_spacing": options.bandwidth / config.fft_length / 1e3,
            "data_subcarriers": config.data_subcarriers,
            "bandwidth": options.bandwidth / 1e6,
            "frame_length": config.frame_length,
            "symbol_time": (config.cp_length + config.fft_length) / options.bandwidth * 1e6,
            "max_data_rate": (bits / tb) / 1e6,
        }

        ## Setup Output
        self.connect(amp, self)

        # Display some information about the setup
        if config._verbose:
            self._print_verbage()
Beispiel #2
0
    def __init__(self,
                 M=1024,
                 K=4,
                 qam_size=16,
                 syms_per_frame=10,
                 carriers=924,
                 theta_sel=0,
                 exclude_preamble=0,
                 sel_preamble=0,
                 zero_pads=1,
                 extra_pad=False):
        gr.hier_block2.__init__(
            self,
            "fbmc_transmitter_demo",
            gr.io_signature(1, 1, gr.sizeof_gr_complex * M),
            gr.io_signature(1, 1, gr.sizeof_gr_complex * 1),
        )

        ##################################################
        # Parameters
        ##################################################
        self.syms_per_frame = syms_per_frame
        self.qam_size = qam_size
        self.K = K
        self.M = M
        self.exclude_preamble = exclude_preamble
        self.theta_sel = theta_sel
        self.zero_pads = zero_pads

        ##################################################
        # Variables
        ##################################################

        # Assertions
        assert (M > 0 and K > 0
                and qam_size > 0), "M, K and qam_size should be bigger than 0"
        assert ((math.log(M) / math.log(2)) == int(
            math.log(M) / math.log(2))), "M shouldbe a power of 2"
        assert (K == 4), "for now only K=4 s supported."
        assert (qam_size == 4 or qam_size == 16 or qam_size == 64
                or qam_size == 256
                ), "Only 4-,16-,64-,256-qam constellations are supported."
        assert (theta_sel == 0 or theta_sel == 1)
        assert (exclude_preamble == 0 or exclude_preamble == 1)

        ##################################################
        # Blocks
        ##################################################
        self.fft_vxx_0_0 = fft.fft_vcc(M, False, (), True, 1)
        self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc(
            ([1.0 / (M * 0.6863)] * M))
        # self.fbmc_symbol_creation_bvc_0 = ofdm.fbmc_symbol_creation_bvc(carriers, qam_size)
        self.vector_padding_0 = ofdm.vector_padding(carriers, M, -1)
        self.fbmc_separate_vcvc_0 = ofdm.fbmc_separate_vcvc(M, 2)
        self.fbmc_polyphase_network_vcvc_0_0 = ofdm.fbmc_polyphase_network_vcvc(
            M, K, K * M - 1, False)
        self.fbmc_polyphase_network_vcvc_0 = ofdm.fbmc_polyphase_network_vcvc(
            M, K, K * M - 1, False)
        self.fbmc_overlapping_parallel_to_serial_vcc_0 = ofdm.fbmc_overlapping_parallel_to_serial_vcc(
            M)
        self.fbmc_oqam_preprocessing_vcvc_0 = ofdm.fbmc_oqam_preprocessing_vcvc(
            M, 0, theta_sel)
        self.fbmc_insert_preamble_vcvc_0 = ofdm.fbmc_insert_preamble_vcvc(
            M, syms_per_frame, sel_preamble, zero_pads, extra_pad)
        self.fbmc_beta_multiplier_vcvc_0 = ofdm.fbmc_beta_multiplier_vcvc(
            M, K, K * M - 1, 0)
        self.blks2_selector_0 = grc_blks2.selector(
            item_size=gr.sizeof_gr_complex * M,
            num_inputs=2,
            num_outputs=1,
            input_index=exclude_preamble,
            output_index=0,
        )

        ##################################################
        # Connections
        ##################################################
        self.connect((self, 0), (self.vector_padding_0, 0))
        self.connect((self.vector_padding_0, 0),
                     (self.fbmc_oqam_preprocessing_vcvc_0, 0))
        # self.connect(, (self.fbmc_symbol_creation_bvc_0, 0))
        self.connect((self.fbmc_beta_multiplier_vcvc_0, 0),
                     (self.fft_vxx_0_0, 0))
        self.connect((self.fft_vxx_0_0, 0),
                     (self.blocks_multiply_const_vxx_0, 0))
        self.connect((self.blocks_multiply_const_vxx_0, 0),
                     (self.fbmc_separate_vcvc_0, 0))
        self.connect((self.fbmc_polyphase_network_vcvc_0, 0),
                     (self.fbmc_overlapping_parallel_to_serial_vcc_0, 0))
        self.connect((self.fbmc_polyphase_network_vcvc_0_0, 0),
                     (self.fbmc_overlapping_parallel_to_serial_vcc_0, 1))
        self.connect((self.fbmc_separate_vcvc_0, 1),
                     (self.fbmc_polyphase_network_vcvc_0_0, 0))
        self.connect((self.fbmc_separate_vcvc_0, 0),
                     (self.fbmc_polyphase_network_vcvc_0, 0))
        self.connect((self.fbmc_overlapping_parallel_to_serial_vcc_0, 0),
                     (self, 0))
        self.connect((self.fbmc_oqam_preprocessing_vcvc_0, 0),
                     (self.blks2_selector_0, 1))
        self.connect((self.fbmc_oqam_preprocessing_vcvc_0, 0),
                     (self.fbmc_insert_preamble_vcvc_0, 0))
        self.connect((self.fbmc_insert_preamble_vcvc_0, 0),
                     (self.blks2_selector_0, 0))
        self.connect((self.blks2_selector_0, 0),
                     (self.fbmc_beta_multiplier_vcvc_0, 0))
Beispiel #3
0
    def __init__(self):
        gr.top_block.__init__(self, "Top Block")
        Qt.QWidget.__init__(self)
        self.setWindowTitle("Top Block")
        try:
             self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
        except:
             pass
        self.top_scroll_layout = Qt.QVBoxLayout()
        self.setLayout(self.top_scroll_layout)
        self.top_scroll = Qt.QScrollArea()
        self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
        self.top_scroll_layout.addWidget(self.top_scroll)
        self.top_scroll.setWidgetResizable(True)
        self.top_widget = Qt.QWidget()
        self.top_scroll.setWidget(self.top_widget)
        self.top_layout = Qt.QVBoxLayout(self.top_widget)
        self.top_grid_layout = Qt.QGridLayout()
        self.top_layout.addLayout(self.top_grid_layout)

        self.settings = Qt.QSettings("GNU Radio", "top_block")
        self.restoreGeometry(self.settings.value("geometry").toByteArray())


        ##################################################
        # Variables
        ##################################################
        self.used_id_bits = used_id_bits = 8
        self.subcarriers = subcarriers = 208
        self.id_blocks = id_blocks = 1
        self.fft_length = fft_length = 256
        self.fbmc = fbmc = 1
        self.estimation_preamble = estimation_preamble = 0
        self.data_blocks = data_blocks = 10
        self.training_data = training_data = default_block_header(subcarriers,fft_length,fbmc,estimation_preamble,[])
        self.repeated_id_bits = repeated_id_bits = subcarriers/used_id_bits
        self.data_part = data_part = data_blocks + id_blocks
        self.whitener_seed = whitener_seed = seed(1)
        self.whitener_pn = whitener_pn = [randint(0,1) for i in range(used_id_bits*repeated_id_bits)]
        self.variable_function_probe_2 = variable_function_probe_2 = 0
        self.variable_function_probe_1 = variable_function_probe_1 = 0
        self.variable_function_probe_0 = variable_function_probe_0 = 0
        self.tx_hostname = tx_hostname = "localhost"
        self.samp_rate = samp_rate = 4*250000
        self.interleaver = interleaver = trellis.interleaver(2000,666)
        self.frame_length = frame_length = 2*data_part + training_data.fbmc_no_preambles
        self.filter_length = filter_length = 4
        self.disable_freq_sync = disable_freq_sync = 1
        self.coding = coding = 1
        self.chunkdivisor = chunkdivisor = int(numpy.ceil(data_blocks/5.0))
        self.ber_window = ber_window = 100000
        self.amplitude = amplitude = 1
        self.SNR = SNR = 40

        ##################################################
        # Blocks
        ##################################################
        self._amplitude_layout = Qt.QVBoxLayout()
        self._amplitude_tool_bar = Qt.QToolBar(self)
        self._amplitude_layout.addWidget(self._amplitude_tool_bar)
        self._amplitude_tool_bar.addWidget(Qt.QLabel("amplitude"+": "))
        class qwt_counter_pyslot(Qwt.QwtCounter):
            def __init__(self, parent=None):
                Qwt.QwtCounter.__init__(self, parent)
            @pyqtSlot('double')
            def setValue(self, value):
                super(Qwt.QwtCounter, self).setValue(value)
        self._amplitude_counter = qwt_counter_pyslot()
        self._amplitude_counter.setRange(0, 1, 0.02)
        self._amplitude_counter.setNumButtons(2)
        self._amplitude_counter.setValue(self.amplitude)
        self._amplitude_tool_bar.addWidget(self._amplitude_counter)
        self._amplitude_counter.valueChanged.connect(self.set_amplitude)
        self._amplitude_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal, Qwt.QwtSlider.BottomScale, Qwt.QwtSlider.BgSlot)
        self._amplitude_slider.setRange(0, 1, 0.02)
        self._amplitude_slider.setValue(self.amplitude)
        self._amplitude_slider.setMinimumWidth(200)
        self._amplitude_slider.valueChanged.connect(self.set_amplitude)
        self._amplitude_layout.addWidget(self._amplitude_slider)
        self.top_layout.addLayout(self._amplitude_layout)
        self.tx_rpc_manager_0 = tx_rpc_manager(fft_length, subcarriers, data_blocks, frame_length, 0, 0.0, samp_rate)
        self.tigr_transmit_control_0 = tigr_transmit_control(
            subcarriers=subcarriers,
            fft_length=fft_length,
            used_id_bits=used_id_bits,
            estimation_preamble=estimation_preamble,
            filter_length=filter_length,
            fbmc=fbmc,
            data_blocks=data_blocks,
            data_part=data_part,
            repeated_id_bits=repeated_id_bits,
            coding=coding,
        )
        self.tigr_scatterplot_0 = tigr_scatterplot(
            subcarriers=subcarriers,
            fbmc=fbmc,
            fft_length=fft_length,
            estimation_preamble=estimation_preamble,
            data_blocks=data_blocks,
            data_part=11,
            frame_length=frame_length,
        )
        self.rx_rpc_manager_0 = rx_rpc_manager()
        self.rms = fbmc_rms_amplifier(amplitude, subcarriers)
        self.zeromq_pub_sink_1 = zeromq.pub_sink(gr.sizeof_float, subcarriers, "tcp://*:5559", 100)
        self.zeromq_pub_sink_0 = zeromq.pub_sink(gr.sizeof_float, 1, "tcp://*:5557", 100)
        def _variable_function_probe_2_probe():
            while True:
                val = self.rx_rpc_manager_0.add_set_scatter_subcarrier_interface(self.tigr_scatterplot_0.ofdm_vector_element_0.set_element)
                try:
                    self.set_variable_function_probe_2(val)
                except AttributeError:
                    pass
                time.sleep(1.0 / (0.000000001))
        _variable_function_probe_2_thread = threading.Thread(target=_variable_function_probe_2_probe)
        _variable_function_probe_2_thread.daemon = True
        _variable_function_probe_2_thread.start()
        def _variable_function_probe_1_probe():
            while True:
                val = self.tx_rpc_manager_0.add_tx_modulation_interface(self.tigr_transmit_control_0.ofdm_allocation_src_0.set_allocation)
                try:
                    self.set_variable_function_probe_1(val)
                except AttributeError:
                    pass
                time.sleep(1.0 / (0.000000001))
        _variable_function_probe_1_thread = threading.Thread(target=_variable_function_probe_1_probe)
        _variable_function_probe_1_thread.daemon = True
        _variable_function_probe_1_thread.start()
        def _variable_function_probe_0_probe():
            while True:
                val = self.tx_rpc_manager_0.add_tx_ampl_interface(self.rms.set_rms_amplitude)
                try:
                    self.set_variable_function_probe_0(val)
                except AttributeError:
                    pass
                time.sleep(1.0 / (0.000000001))
        _variable_function_probe_0_thread = threading.Thread(target=_variable_function_probe_0_probe)
        _variable_function_probe_0_thread.daemon = True
        _variable_function_probe_0_thread.start()
        self.trellis_permutation_0 = trellis.permutation(interleaver.K(), (interleaver.DEINTER()), 1, gr.sizeof_float*1)
        self.tigr_fbmc_snr_estimator_0 = tigr_fbmc_snr_estimator(
            subcarriers=subcarriers,
            fbmc=fbmc,
            fft_length=fft_length,
            estimation_preamble=estimation_preamble,
            frame_length=frame_length,
        )
        self.tigr_fbmc_inner_receiver_0 = tigr_fbmc_inner_receiver(
            subcarriers=subcarriers,
            fft_length=fft_length,
            data_blocks=data_blocks,
            estimation_preamble=estimation_preamble,
            filter_length=filter_length,
            frame_length=frame_length,
            disable_freq_sync=disable_freq_sync,
        )
        self.tigr_ber_measurement_0 = tigr_ber_measurement(
            subcarriers=subcarriers,
            fbmc=fbmc,
            fft_length=fft_length,
            estimation_preamble=estimation_preamble,
            ber_window=ber_window,
            data_blocks=data_blocks,
        )
        self.single_pole_iir_filter_xx_0 = filter.single_pole_iir_filter_ff(0.1, subcarriers)
        self.ofdm_viterbi_combined_fb_0 = ofdm.viterbi_combined_fb(ofdm.fsm(ofdm.fsm(1,2,[91,121])), subcarriers, -1, -1, 2, chunkdivisor, ([-1,-1,-1,1,1,-1,1,1]), ofdm.TRELLIS_EUCLIDEAN)
        self.ofdm_vector_sampler_0 = ofdm.vector_sampler(gr.sizeof_gr_complex*subcarriers, 1)
        self.ofdm_vector_padding_0 = ofdm.vector_padding(subcarriers, fft_length,  -1)
        self.ofdm_multiply_frame_fc_0 = ofdm.multiply_frame_fc(data_part, subcarriers)
        self.ofdm_multiply_const_ii_0 = ofdm.multiply_const_ii(1./int(numpy.ceil(data_blocks/5.0)))
        self.ofdm_generic_softdemapper_vcf_0 = ofdm.generic_softdemapper_vcf(subcarriers, data_part, 1)
        self.ofdm_fbmc_separate_vcvc_1 = ofdm.fbmc_separate_vcvc(fft_length, 2)
        self.ofdm_fbmc_polyphase_network_vcvc_1 = ofdm.fbmc_polyphase_network_vcvc(fft_length, filter_length, filter_length*fft_length-1, False)
        self.ofdm_fbmc_polyphase_network_vcvc_0 = ofdm.fbmc_polyphase_network_vcvc(fft_length, filter_length, filter_length*fft_length-1, False)
        self.ofdm_fbmc_pilot_block_inserter_0 = fbmc_pilot_block_inserter(subcarriers, data_part, training_data, 5)
        self.ofdm_fbmc_pilot_block_filter_0 = fbmc_pilot_block_filter(subcarriers, frame_length, data_part, training_data)
        self.ofdm_fbmc_overlapping_parallel_to_serial_vcc_0 = ofdm.fbmc_overlapping_parallel_to_serial_vcc(fft_length)
        self.ofdm_fbmc_oqam_preprocessing_vcvc_0 = ofdm.fbmc_oqam_preprocessing_vcvc(subcarriers, 0, 0)
        self.ofdm_fbmc_frame_sampler_0 = fbmc_frame_sampler(subcarriers, frame_length, data_part, training_data)
        self.ofdm_fbmc_beta_multiplier_vcvc_0 = ofdm.fbmc_beta_multiplier_vcvc(fft_length, filter_length, fft_length*fft_length-1, 0)
        self.ofdm_dynamic_trigger_ib_0 = ofdm.dynamic_trigger_ib(0)
        self.ofdm_depuncture_ff_0 = ofdm.depuncture_ff(subcarriers, 0)
        self.ofdm_coded_bpsk_soft_decoder_0 = ofdm.coded_bpsk_soft_decoder(subcarriers, used_id_bits, (whitener_pn))
        self.ofdm_allocation_buffer_0 = ofdm.allocation_buffer(subcarriers, data_blocks, "tcp://"+tx_hostname+":3333", 1)
        self.fft_vxx_1 = fft.fft_vcc(fft_length, False, ([]), True, 1)
        self.channels_channel_model_0 = channels.channel_model(
        	noise_voltage=math.sqrt(1.0*fft_length/subcarriers)*math.sqrt(0.5)*10**(-SNR/20.0),
        	frequency_offset=0.0/fft_length,
        	epsilon=1,
        	taps=((1.0 ), ),
        	noise_seed=0,
        	block_tags=False
        )
        self.blocks_vector_source_x_0 = blocks.vector_source_b([1] + [0]*(data_blocks/2-1), True, 1, [])
        self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
        self.blocks_keep_one_in_n_1 = blocks.keep_one_in_n(gr.sizeof_float*subcarriers, 20)
        self.blks2_selector_0 = grc_blks2.selector(
        	item_size=gr.sizeof_float*1,
        	num_inputs=2,
        	num_outputs=1,
        	input_index=0,
        	output_index=0,
        )

        ##################################################
        # Connections
        ##################################################
        self.connect((self.ofdm_fbmc_polyphase_network_vcvc_0, 0), (self.ofdm_fbmc_overlapping_parallel_to_serial_vcc_0, 0))
        self.connect((self.ofdm_fbmc_polyphase_network_vcvc_1, 0), (self.ofdm_fbmc_overlapping_parallel_to_serial_vcc_0, 1))
        self.connect((self.ofdm_fbmc_separate_vcvc_1, 1), (self.ofdm_fbmc_polyphase_network_vcvc_1, 0))
        self.connect((self.ofdm_fbmc_oqam_preprocessing_vcvc_0, 0), (self.ofdm_fbmc_pilot_block_inserter_0, 0))
        self.connect((self.ofdm_fbmc_pilot_block_inserter_0, 0), (self.ofdm_vector_padding_0, 0))
        self.connect((self.ofdm_fbmc_beta_multiplier_vcvc_0, 0), (self.fft_vxx_1, 0))
        self.connect((self.fft_vxx_1, 0), (self.ofdm_fbmc_separate_vcvc_1, 0))
        self.connect((self.tigr_transmit_control_0, 0), (self.ofdm_fbmc_oqam_preprocessing_vcvc_0, 0))
        self.connect((self.single_pole_iir_filter_xx_0, 0), (self.blocks_keep_one_in_n_1, 0))
        self.connect((self.ofdm_fbmc_frame_sampler_0, 1), (self.ofdm_fbmc_pilot_block_filter_0, 1))
        self.connect((self.ofdm_fbmc_frame_sampler_0, 0), (self.ofdm_fbmc_pilot_block_filter_0, 0))
        self.connect((self.ofdm_fbmc_pilot_block_filter_0, 1), (self.ofdm_vector_sampler_0, 1))
        self.connect((self.ofdm_vector_sampler_0, 0), (self.ofdm_coded_bpsk_soft_decoder_0, 0))
        self.connect((self.ofdm_coded_bpsk_soft_decoder_0, 0), (self.ofdm_allocation_buffer_0, 0))
        self.connect((self.ofdm_allocation_buffer_0, 1), (self.ofdm_generic_softdemapper_vcf_0, 1))
        self.connect((self.single_pole_iir_filter_xx_0, 0), (self.ofdm_generic_softdemapper_vcf_0, 2))
        self.connect((self.ofdm_generic_softdemapper_vcf_0, 0), (self.trellis_permutation_0, 0))
        self.connect((self.ofdm_depuncture_ff_0, 0), (self.ofdm_viterbi_combined_fb_0, 0))
        self.connect((self.ofdm_allocation_buffer_0, 1), (self.ofdm_depuncture_ff_0, 1))
        self.connect((self.blocks_vector_source_x_0, 0), (self.ofdm_depuncture_ff_0, 2))
        self.connect((self.ofdm_allocation_buffer_0, 0), (self.ofdm_multiply_const_ii_0, 0))
        self.connect((self.ofdm_multiply_const_ii_0, 0), (self.ofdm_viterbi_combined_fb_0, 1))
        self.connect((self.ofdm_fbmc_separate_vcvc_1, 0), (self.ofdm_fbmc_polyphase_network_vcvc_0, 0))
        self.connect((self.ofdm_viterbi_combined_fb_0, 0), (self.tigr_ber_measurement_0, 2))
        self.connect((self.ofdm_dynamic_trigger_ib_0, 0), (self.tigr_ber_measurement_0, 3))
        self.connect((self.ofdm_fbmc_frame_sampler_0, 0), (self.tigr_fbmc_snr_estimator_0, 0))
        self.connect((self.ofdm_fbmc_frame_sampler_0, 1), (self.tigr_fbmc_snr_estimator_0, 1))
        self.connect((self.tigr_fbmc_inner_receiver_0, 1), (self.ofdm_fbmc_frame_sampler_0, 1))
        self.connect((self.tigr_fbmc_inner_receiver_0, 2), (self.ofdm_fbmc_frame_sampler_0, 0))
        self.connect((self.rms, 0), (self.blocks_throttle_0, 0))
        self.connect((self.tigr_fbmc_inner_receiver_0, 3), (self.zeromq_pub_sink_0, 0))
        self.connect((self.blocks_keep_one_in_n_1, 0), (self.zeromq_pub_sink_1, 0))
        self.connect((self.ofdm_vector_padding_0, 0), (self.ofdm_fbmc_beta_multiplier_vcvc_0, 0))
        self.connect((self.tigr_fbmc_inner_receiver_0, 0), (self.single_pole_iir_filter_xx_0, 0))
        self.connect((self.ofdm_fbmc_overlapping_parallel_to_serial_vcc_0, 0), (self.rms, 0))
        self.connect((self.ofdm_allocation_buffer_0, 0), (self.ofdm_dynamic_trigger_ib_0, 0))
        self.connect((self.ofdm_coded_bpsk_soft_decoder_0, 0), (self.tigr_ber_measurement_0, 0))
        self.connect((self.ofdm_allocation_buffer_0, 0), (self.tigr_ber_measurement_0, 1))
        self.connect((self.blks2_selector_0, 0), (self.ofdm_depuncture_ff_0, 0))
        self.connect((self.trellis_permutation_0, 0), (self.blks2_selector_0, 1))
        self.connect((self.ofdm_generic_softdemapper_vcf_0, 0), (self.blks2_selector_0, 0))
        self.connect((self.blocks_throttle_0, 0), (self.channels_channel_model_0, 0))
        self.connect((self.channels_channel_model_0, 0), (self.tigr_fbmc_inner_receiver_0, 0))
        self.connect((self.ofdm_fbmc_pilot_block_filter_0, 0), (self.ofdm_vector_sampler_0, 0))
        self.connect((self.ofdm_allocation_buffer_0, 2), (self.ofdm_multiply_frame_fc_0, 1))
        self.connect((self.ofdm_fbmc_pilot_block_filter_0, 0), (self.ofdm_multiply_frame_fc_0, 0))
        self.connect((self.ofdm_multiply_frame_fc_0, 0), (self.tigr_scatterplot_0, 0))
        self.connect((self.ofdm_multiply_frame_fc_0, 0), (self.ofdm_generic_softdemapper_vcf_0, 0))
    def __init__(self, M=1024, K=4, qam_size=16, syms_per_frame=10, start=10, end=29, theta_sel=0, exclude_preamble=0, sel_preamble=0, zero_pads=1, extra_pad=False):
        gr.hier_block2.__init__(self,
            "fbmc_transmitter_multiuser_bc",
            gr.io_signature(1, 1, gr.sizeof_char*1),
            gr.io_signature(1, 1, gr.sizeof_gr_complex*1),
        )

        ##################################################
        # Parameters
        ##################################################
        self.syms_per_frame = syms_per_frame
        self.qam_size = qam_size
        self.K = K
        self.M = M
        self.exclude_preamble = exclude_preamble
        self.theta_sel = theta_sel
        self.zero_pads = zero_pads
        self.allocation = allocation = end-start+1

        ##################################################
        # Variables
        ##################################################

        # Assertions
        assert(M>0 and K>0 and qam_size>0), "M, K and qam_size should be bigger than 0"
        assert((math.log(M)/math.log(2))==int(math.log(M)/math.log(2))), "M shouldbe a power of 2"
        assert(K==4), "for now only K=4 s supported."
        assert(qam_size==4 or qam_size==16 or qam_size==64 or qam_size==256 ), "Only 4-,16-,64-,256-qam constellations are supported."
        assert(theta_sel==0 or theta_sel==1)
        assert(exclude_preamble==0 or exclude_preamble==1)

        ##################################################
        # Blocks
        ##################################################
        self.fft_vxx_0_0 = fft.fft_vcc(M, False, (), True, 1)
        self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc(([1.0/(M*0.6863)]*M))
        self.fbmc_symbol_creation_bvc_0 = ofdm.fbmc_symbol_creation_bvc(allocation, qam_size)
        self.vector_padding_0 = ofdm.fbmc_asymmetrical_vector_padding_vcvc(start,end,M,-1)
        self.fbmc_separate_vcvc_0 = ofdm.fbmc_separate_vcvc(M, 2)
        self.fbmc_polyphase_network_vcvc_0_0 = ofdm.fbmc_polyphase_network_vcvc(M, K, K*M-1, False)
        self.fbmc_polyphase_network_vcvc_0 = ofdm.fbmc_polyphase_network_vcvc(M, K, K*M-1, False)
        self.fbmc_overlapping_parallel_to_serial_vcc_0 = ofdm.fbmc_overlapping_parallel_to_serial_vcc(M)
        self.fbmc_oqam_preprocessing_vcvc_0 = ofdm.fbmc_oqam_preprocessing_vcvc(M, 0, theta_sel)
        self.fbmc_insert_preamble_vcvc_0 = ofdm.fbmc_insert_preamble_vcvc(M, syms_per_frame, sel_preamble, zero_pads,extra_pad)
        self.fbmc_beta_multiplier_vcvc_0 = ofdm.fbmc_beta_multiplier_vcvc(M, K, K*M-1, 0)
        self.blks2_selector_0 = grc_blks2.selector(
            item_size=gr.sizeof_gr_complex*M,
            num_inputs=2,
            num_outputs=1,
            input_index=exclude_preamble,
            output_index=0,
        )

        ##################################################
        # Connections
        ##################################################
        self.connect((self.fbmc_symbol_creation_bvc_0, 0), (self.vector_padding_0,0))
        self.connect((self.vector_padding_0,0),(self.fbmc_oqam_preprocessing_vcvc_0, 0))
        self.connect((self, 0), (self.fbmc_symbol_creation_bvc_0, 0))
        self.connect((self.fbmc_beta_multiplier_vcvc_0, 0), (self.fft_vxx_0_0, 0))
        self.connect((self.fft_vxx_0_0, 0), (self.blocks_multiply_const_vxx_0,0))
        self.connect((self.blocks_multiply_const_vxx_0,0), (self.fbmc_separate_vcvc_0, 0))
        self.connect((self.fbmc_polyphase_network_vcvc_0, 0), (self.fbmc_overlapping_parallel_to_serial_vcc_0, 0))
        self.connect((self.fbmc_polyphase_network_vcvc_0_0, 0), (self.fbmc_overlapping_parallel_to_serial_vcc_0, 1))
        self.connect((self.fbmc_separate_vcvc_0, 1), (self.fbmc_polyphase_network_vcvc_0_0, 0))
        self.connect((self.fbmc_separate_vcvc_0, 0), (self.fbmc_polyphase_network_vcvc_0, 0))
        self.connect((self.fbmc_overlapping_parallel_to_serial_vcc_0, 0), (self, 0))
        self.connect((self.fbmc_oqam_preprocessing_vcvc_0, 0), (self.blks2_selector_0, 1))
        self.connect((self.fbmc_oqam_preprocessing_vcvc_0, 0), (self.fbmc_insert_preamble_vcvc_0, 0))
        self.connect((self.fbmc_insert_preamble_vcvc_0, 0), (self.blks2_selector_0, 0))
        self.connect((self.blks2_selector_0, 0), (self.fbmc_beta_multiplier_vcvc_0, 0))
  def __init__(self, options):
    gr.hier_block2.__init__(self, "fbmc_transmit_path",
        gr.io_signature(0,0,0),
        gr.io_signature(1,1,gr.sizeof_gr_complex))

    common_options.defaults(options)

    config = self.config = station_configuration()

    config.data_subcarriers    = options.subcarriers
    config.cp_length           = 0
    config.frame_data_blocks   = options.data_blocks
    config._verbose            = options.verbose
    config.fft_length          = options.fft_length
    config.dc_null             = options.dc_null
    config.training_data       = default_block_header(config.data_subcarriers,
                                          config.fft_length,config.dc_null,options)
    config.coding              = options.coding
    config.fbmc                = options.fbmc
    config.adaptive_fbmc       = options.adaptive_fbmc


    config.frame_id_blocks     = 1 # FIXME

    # digital rms amplitude sent to USRP
    rms_amp                    = options.rms_amplitude
    self._options              = copy.copy(options)


    config.block_length = config.fft_length + config.cp_length
    config.frame_data_part = config.frame_data_blocks + config.frame_id_blocks
    config.frame_length = config.training_data.fbmc_no_preambles + 2*config.frame_data_part
    config.subcarriers = config.data_subcarriers + \
                         config.training_data.pilot_subcarriers
    config.virtual_subcarriers = config.fft_length - config.subcarriers - config.dc_null

    # default values if parameters not set
    if rms_amp is None:
      rms_amp = math.sqrt(config.subcarriers)
    config.rms_amplitude = rms_amp

    # check some bounds
    if config.fft_length < config.subcarriers:
      raise SystemError, "Subcarrier number must be less than FFT length"
    if config.fft_length < config.cp_length:
      raise SystemError, "Cyclic prefix length must be less than FFT length"

    ## shortcuts
    blen = config.block_length
    flen = config.frame_length
    dsubc = config.data_subcarriers
    vsubc = config.virtual_subcarriers

    # Adaptive Transmitter Concept

    used_id_bits = config.used_id_bits = 8 #TODO: no constant in source code
    rep_id_bits = config.rep_id_bits = config.data_subcarriers/used_id_bits #BPSK
    if config.data_subcarriers % used_id_bits <> 0:
      raise SystemError,"Data subcarriers need to be multiple of %d" % (used_id_bits)

    ## Allocation Control
    self.allocation_src = allocation_src(config.data_subcarriers, config.frame_data_blocks, config.coding, "tcp://*:3333", "tcp://"+options.rx_hostname+":3322")
    if options.static_allocation: #DEBUG
        # how many bits per subcarrier
         
        if options.coding:
            mode = 1 # Coding mode 1-9
            bitspermode= [0.5,1,1.5,2,3,4,4.5,5,6] # Information bits per mode
            modulbitspermode = [1,2,2,4,4,6,6,6,8] # Coding bits per mode
            bitcount_vec = [(int)(config.data_subcarriers*config.frame_data_blocks*bitspermode[mode-1])]
            modul_bitcount_vec = [config.data_subcarriers*config.frame_data_blocks*modulbitspermode[mode-1]]
            bitcount_src = blocks.vector_source_i(bitcount_vec,True,1)
            modul_bitcount_src = blocks.vector_source_i(modul_bitcount_vec,True,1)
            bitloading = mode
        else:
            bitloading = 1
            bitcount_vec = [config.data_subcarriers*config.frame_data_blocks*bitloading]
            bitcount_src = blocks.vector_source_i(bitcount_vec,True,1)
            modul_bitcount_src = bitcount_src
        # id's for frames
        id_vec = range(0,256)
        id_src = blocks.vector_source_s(id_vec,True,1)
        # bitloading for ID symbol and then once for data symbols
        #bitloading_vec = [1]*dsubc+[0]*(dsubc/2)+[2]*(dsubc/2)
        
        test_allocation = [bitloading]*(int)(config.data_subcarriers/8)+ [0]*(int)(config.data_subcarriers/4*3) + [bitloading]*(int)(config.data_subcarriers/8)
        #bitloading_vec = [1]*dsubc+[bitloading]*dsubc
        bitloading_vec = [1]*dsubc+test_allocation
        bitloading_src = blocks.vector_source_b(bitloading_vec,True,dsubc)
        # bitcount for frames
        #bitcount_vec = [config.data_subcarriers*config.frame_data_blocks*bitloading]
        bitcount_vec = [config.frame_data_blocks*sum(test_allocation)]
        bitcount_src = blocks.vector_source_i(bitcount_vec,True,1)
        # power loading, here same for all symbols
        power_vec = [1]*(int)(config.data_subcarriers/8)+ [0]*(int)(config.data_subcarriers/4*3) + [1]*(int)(config.data_subcarriers/8)
        power_src = blocks.vector_source_f(power_vec,True,dsubc)
        # mux control stream to mux id and data bits
        mux_vec = [0]*dsubc+[1]*bitcount_vec[0]
        mux_ctrl = blocks.vector_source_b(mux_vec,True,1)
    else:
        id_src = (self.allocation_src,0)
        bitcount_src = (self.allocation_src,4)
        bitloading_src = (self.allocation_src,2)
        power_src = (self.allocation_src,1)
        if options.coding: 
            modul_bitcount_src = (self.allocation_src,5)
        else:
            modul_bitcount_src = bitcount_src
        mux_ctrl = ofdm.tx_mux_ctrl(dsubc)
        self.connect(modul_bitcount_src,mux_ctrl)
        #Initial allocation
        self.allocation_src.set_allocation([4]*config.data_subcarriers,[1]*config.data_subcarriers)   
        if options.benchmarking:
            self.allocation_src.set_allocation([4]*config.data_subcarriers,[1]*config.data_subcarriers)        


    if options.lab_special_case:
        self.allocation_src.set_allocation([0]*(config.data_subcarriers/4)+[2]*(config.data_subcarriers/2)+[0]*(config.data_subcarriers/4),[1]*config.data_subcarriers)

    if options.log:
        log_to_file(self, id_src, "data/id_src.short")
        log_to_file(self, bitcount_src, "data/bitcount_src.int")
        log_to_file(self, bitloading_src, "data/bitloading_src.char")
        log_to_file(self, power_src, "data/power_src.cmplx")
         

    ## GUI probe output
    zmq_probe_bitloading = zeromq.pub_sink(gr.sizeof_char,dsubc, "tcp://*:4445")
    # also skip ID symbol bitloading with keep_one_in_n (side effect)
    # factor 2 for bitloading because we have two vectors per frame, one for id symbol and one for all payload/data symbols
    # factor config.frame_data_part for power because there is one vector per ofdm symbol per frame
    self.connect(bitloading_src, blocks.keep_one_in_n(gr.sizeof_char*dsubc,2*40), zmq_probe_bitloading)
    zmq_probe_power = zeromq.pub_sink(gr.sizeof_float,dsubc, "tcp://*:4444")
    #self.connect(power_src, blocks.keep_one_in_n(gr.sizeof_gr_complex*dsubc,40), blocks.complex_to_real(dsubc), zmq_probe_power)
    self.connect(power_src, blocks.keep_one_in_n(gr.sizeof_float*dsubc,40), zmq_probe_power)

    ## Workaround to avoid periodic structure
    seed(1)
    whitener_pn = [randint(0,1) for i in range(used_id_bits*rep_id_bits)]

    ## ID Encoder
    id_enc = self._id_encoder = repetition_encoder_sb(used_id_bits,rep_id_bits,whitener_pn)
    self.connect(id_src,id_enc)

    if options.log:
      id_enc_f = gr.char_to_float()
      self.connect(id_enc,id_enc_f)
      log_to_file(self, id_enc_f, "data/id_enc_out.float")

    ## Reference Data Source
    ber_ref_src = ber_reference_source(self._options)
    self.connect(id_src,(ber_ref_src,0))
    self.connect(bitcount_src,(ber_ref_src,1))

    if options.log:
      log_to_file(self, ber_ref_src, "data/ber_rec_src_tx.char")

    if options.log:
      log_to_file(self, btrig, "data/bitmap_trig.char")

    ## Frame Trigger
    ftrig_stream = [1]+[0]*(config.frame_data_part-1)
    ftrig = self._frame_trigger = blocks.vector_source_b(ftrig_stream,True)

    ## Data Multiplexer
    # Input 0: control stream
    # Input 1: encoded ID stream
    # Inputs 2..n: data streams
    dmux = self._data_multiplexer = stream_controlled_mux_b()
    self.connect(mux_ctrl,(dmux,0))
    self.connect(id_enc,(dmux,1))

    if options.coding:
        fo=trellis.fsm(1,2,[91,121])       
        encoder = self._encoder = trellis.encoder_bb(fo,0)
        unpack = self._unpack = blocks.unpack_k_bits_bb(2)
        self.connect(ber_ref_src,encoder,unpack)
        
        if options.interleave:
            int_object=trellis.interleaver(2000,666)
            interlv = trellis.permutation(int_object.K(),int_object.INTER(),1,gr.sizeof_char)
        
        if not options.nopunct:
            bmaptrig_stream_puncturing = [1]+[0]*(config.frame_data_blocks/2-1)
            btrig_puncturing = self._bitmap_trigger_puncturing = blocks.vector_source_b(bmaptrig_stream_puncturing, True)
            puncturing = self._puncturing = puncture_bb(config.data_subcarriers)
            self.connect(bitloading_src,(puncturing,1))
            self.connect(self._bitmap_trigger_puncturing,(puncturing,2))
            self.connect(unpack,puncturing)
            last_block=puncturing
            
            if options.interleave:
                self.connect(last_block,interlv)
                last_block = interlv
            
            if options.benchmarking:
                self.connect(last_block,blocks.head(gr.sizeof_char, options.N),(dmux,2))
            else:
                self.connect(last_block,(dmux,2))
        else:
            if options.benchmarking:
                self.connect(unpack,blocks.head(gr.sizeof_char, options.N),(dmux,2))
            else:
                self.connect(unpack,(dmux,2))
        
    else:
        if options.benchmarking:
            self.connect(ber_ref_src,blocks.head(gr.sizeof_char, options.N),(dmux,2))
        else:
            self.connect(ber_ref_src,(dmux,2))
        
    

    if options.log:
      dmux_f = gr.char_to_float()
      self.connect(dmux,dmux_f)
      log_to_file(self, dmux_f, "data/dmux_out.float")

    ## Modulator
    mod = self._modulator = generic_mapper_bcv(config.data_subcarriers,config.coding, config.frame_data_part)
    self.connect(dmux,(mod,0))
    self.connect(bitloading_src,(mod,1))

    if options.log:
      log_to_file(self, mod, "data/mod_out.compl")
      modi = blocks.complex_to_imag(config.data_subcarriers)
      modr = blocks.complex_to_real(config.data_subcarriers)
      self.connect(mod,modi)
      self.connect(mod,modr)
      log_to_file(self, modi, "data/mod_imag_out.float")
      log_to_file(self, modr, "data/mod_real_out.float")

    ## Power allocator
    pa = self._power_allocator = multiply_frame_fc(config.frame_data_part, config.data_subcarriers)
    self.connect(mod,(pa,0))
    self.connect(power_src,(pa,1))

    if options.log:
      log_to_file(self, pa, "data/pa_out.compl")
      

    if options.fbmc:
        psubc = pa
    else:
        psubc = self._pilot_subcarrier_inserter = pilot_subcarrier_inserter()
        self.connect(pa,psubc)
        
        if options.log:
            log_to_file(self, psubc, "data/psubc_out.compl")
        
    subcarriers = config.subcarriers
    
    #fbmc_pblocks_timing = self._fbmc_timing_pilot_block_inserter = fbmc_timing_pilot_block_inserter(5,False)
    
    oqam_prep = self._oqam_prep = fbmc_oqam_preprocessing_vcvc(config.subcarriers, 0, 0)
    self.connect(psubc,oqam_prep)
    
    
    fbmc_pblocks = self._fbmc_pilot_block_inserter = fbmc_pilot_block_inserter(5,False)
    self.connect(oqam_prep, fbmc_pblocks)
    #log_to_file(self, fbmc_pblocks, "data/fbmc_pblocks_out.compl")
    #fbmc_insert_pream = self._fbmc_insert_pream = fbmc_insert_preamble_vcvc(M, syms_per_frame, preamble)
    #log_to_file(self, oqam_prep, "data/oqam_prep.compl")
    #log_to_file(self, psubc, "data/psubc_out.compl")
    #fbmc_pblocks = fbmc_pblocks_timing
    #log_to_file(self, fbmc_pblocks, "data/fbmc_pblocks_out.compl")
    



      
    beta_mult = self._beta_mult = fbmc_beta_multiplier_vcvc(config.subcarriers, 4, 4*config.fft_length-1, 0)
    self.connect(fbmc_pblocks, beta_mult)
    log_to_file(self, beta_mult, "data/beta_mult.compl")
    
        ## Add virtual subcarriers
    if config.fft_length > subcarriers:
      vsubc = self._virtual_subcarrier_extender = \
              vector_padding_dc_null(config.subcarriers, config.fft_length,config.dc_null)
      self.connect(beta_mult,vsubc)
    else:
      vsubc = self._virtual_subcarrier_extender = beta_mult

    if options.log:
      log_to_file(self, vsubc, "data/vsubc_out.compl")

    ## IFFT, no window, block shift
    ifft = self._ifft = fft_blocks.fft_vcc(config.fft_length,False,[],True)
    self.connect(vsubc,ifft)

    if options.log:
      log_to_file(self, ifft, "data/ifft_out.compl")
      
      
    #FBMC separate stream + filterbanks
    separate_oqam = self._separate_oqam = fbmc_separate_vcvc(config.fft_length, 2)
    poly_netw_1 = self._poly_netw_1 = fbmc_polyphase_network_vcvc(config.fft_length, 4, 4*config.fft_length-1, False)
    poly_netw_2 = self._poly_netw_2 = fbmc_polyphase_network_vcvc(config.fft_length, 4, 4*config.fft_length-1, False)
    overlap_p2s = self._overlap_p2s = fbmc_overlapping_parallel_to_serial_vcc(config.fft_length)
      
    self.connect(ifft,(separate_oqam,0),poly_netw_1)
    self.connect((separate_oqam,1),poly_netw_2)
    self.connect(poly_netw_1,(overlap_p2s,0))
    self.connect(poly_netw_2,(overlap_p2s,1))
    

    ## Pilot blocks (preambles)
    #pblocks = self._pilot_block_inserter = pilot_block_inserter2(5,False)
    #self.connect( overlap_p2s, blocks.stream_to_vector(gr.sizeof_gr_complex,config.fft_length/2),  pblocks )
    
    #log_to_file(self, pblocks, "data/fbmc_pilot_block_ins_out.compl")

    if options.log:
      log_to_file(self, pblocks, "data/pilot_block_ins_out.compl")

    ## Cyclic Prefix
    #cp = self._cyclic_prefixer = cyclic_prefixer(config.fft_length,
                                               # config.block_length)

    #cp= blocks.vector_to_stream(gr.sizeof_gr_complex, config.fft_length/2)
    #self.connect(pblocks, cp )
    #self.connect( overlap_p2s,blocks.stream_to_vector(gr.sizeof_gr_complex,config.fft_length/2), cp )


    lastblock = overlap_p2s

    if options.log:
      log_to_file(self, overlap_p2s, "data/overlap_p2s_out.compl")


    #Digital Amplifier for resource allocation
    if config.adaptive_fbmc:
        rep = blocks.repeat(gr.sizeof_gr_complex, config.frame_length * config.block_length)
        amp = blocks.multiply_cc()
        self.connect( lastblock, (amp,0) )
        self.connect((self.allocation_src,3), rep , (amp,1) )
        lastblock = amp
    else:
        self.connect((self.allocation_src,3), blocks.null_sink(gr.sizeof_gr_complex) )

    ## Digital Amplifier
    #amp = self._amplifier = gr.multiply_const_cc(1)
    amp = self._amplifier = ofdm.multiply_const_ccf( 1.0 )
    self.connect( lastblock, amp )
    self.set_rms_amplitude(rms_amp)
    #log_to_file(self, amp, "data/amp_tx_out.compl")

    if options.log:
      log_to_file(self, amp, "data/amp_tx_out.compl")



    ## Tx parameters
    bandwidth = options.bandwidth or 2e6
    bits = 8*config.data_subcarriers*config.frame_data_blocks # max. QAM256
    samples_per_frame = config.frame_length*config.block_length
    tb = samples_per_frame/bandwidth
    # set dummy carrier frequency if none available due to baseband mode
    if(options.tx_freq is None):
        options.tx_freq = 0.0
    self.tx_parameters = {'carrier_frequency':options.tx_freq/1e9,'fft_size':config.fft_length, 'cp_size':config.cp_length \
                          , 'subcarrier_spacing':options.bandwidth/config.fft_length/1e3 \
                          ,'data_subcarriers':config.data_subcarriers, 'bandwidth':options.bandwidth/1e6 \
                          , 'frame_length':config.frame_length  \
                          , 'symbol_time':(config.cp_length + config.fft_length)/options.bandwidth*1e6, 'max_data_rate':(bits/tb)/1e6}

    ## Setup Output
    self.connect(amp,self)

    # Display some information about the setup
    if config._verbose:
      self._print_verbage()