def __init__(self, tx_id, rx_id, sample_rate, fmax):
gr.hier_block2.__init__(self, "COST207 Rural Area 4 paths",
gr.io_signature(1, 1, gr.sizeof_gr_complex),
gr.io_signature(1, 1, gr.sizeof_gr_complex))
self.sample_rate = sample_rate
# Statistics of this channel, taken from
# "Mobile Radio Channels", Paetzold, 2011, p 357
# Delays of the multipath components in seconds
delays = [0, 0.2e-6, 0.4e-6, 0.6e-6]
print 'delays', delays
# Delays expressed in samples
self.taps_delays = [int(sample_rate * delay) for delay in delays]
print 'delays in samples', self.taps_delays
# power delay profile
self.pdp = [1, 0.63, 0.1, 0.01]
# channel options
self.channel_opts = {'N': 2001,
'fmax': fmax}
self.mpc_channel = mpc_channel_cc(self.taps_delays, self.pdp)
# The different multipath components have to be uncorrelated. This is
# the reason for choosing changing values for N
self.mpc1 = gauss_rand_proc_c(sample_rate, "cost207:rice", "gmea", 14,
self.channel_opts)
self.mpc2 = gauss_rand_proc_c(sample_rate, "cost207:jakes", "mea", 12,
self.channel_opts)
self.mpc3 = gauss_rand_proc_c(sample_rate, "cost207:jakes", "mea", 10,
self.channel_opts)
self.mpc4 = gauss_rand_proc_c(sample_rate, "cost207:jakes", "mea", 8,
self.channel_opts)
self.connect(self, (self.mpc_channel, 0))
self.connect(self.mpc1, (self.mpc_channel, 1))
self.connect(self.mpc2, (self.mpc_channel, 2))
self.connect(self.mpc3, (self.mpc_channel, 3))
self.connect(self.mpc4, (self.mpc_channel, 4))
self.connect(self.mpc_channel, self)
def __init__(self, tx_id, rx_id, sample_rate, fmax):
gr.hier_block2.__init__(self, "COST207 Typical Urban 12 paths",
gr.io_signature(1, 1, gr.sizeof_gr_complex),
gr.io_signature(1, 1, gr.sizeof_gr_complex))
self.sample_rate = sample_rate
# Statistics of this channel, taken from
# "Mobile Radio Channels", Paetzold, 2011, p 357
# Delays of the multipath components in seconds
delays = [0, 0.2, 0.4, 0.6, 0.8, 1.2, 1.4, 1.8, 2.4, 3.0, 3.2, 5.0]
delays = [el * 1e-6 for el in delays]
print 'delays', delays
# Delays expressed in samples
self.taps_delays = [int(sample_rate * delay) for delay in delays]
print 'delays in samples', self.taps_delays
# power delay profile
self.pdp = [0.4, 0.5, 1, 0.63, 0.6, 0.32, 0.2, 0.32, 0.25, 0.13, 0.08, 0.1]
# channel options
self.channel_opts = {'N': 2001,
'fmax': fmax}
self.mpc_channel = mpc_channel_cc(self.taps_delays, self.pdp)
# The different multipath components have to be uncorrelated. This is
# the reason for choosing changing values for N
self.mpc1 = gauss_rand_proc_c(sample_rate, "cost207:jakes", "mea",
10, self.channel_opts)
self.mpc2 = gauss_rand_proc_c(sample_rate, "cost207:jakes", "mea",
12, self.channel_opts)
self.mpc3 = gauss_rand_proc_c(sample_rate, "cost207:jakes", "mea",
14, self.channel_opts)
self.mpc4 = gauss_rand_proc_c(sample_rate, "cost207:gauss1", "gmea",
10, self.channel_opts)
self.mpc5 = gauss_rand_proc_c(sample_rate, "cost207:gauss1", "gmea",
9, self.channel_opts)
self.mpc6 = gauss_rand_proc_c(sample_rate, "cost207:gauss1", "gmea",
8, self.channel_opts)
self.mpc7 = gauss_rand_proc_c(sample_rate, "cost207:gauss1", "gmea",
6, self.channel_opts)
self.mpc8 = gauss_rand_proc_c(sample_rate, "cost207:gauss1", "gmea",
7, self.channel_opts)
self.mpc9 = gauss_rand_proc_c(sample_rate, "cost207:gauss2", "gmea",
10, self.channel_opts)
self.mpc10 = gauss_rand_proc_c(sample_rate, "cost207:gauss2", "gmea",
9, self.channel_opts)
self.mpc11 = gauss_rand_proc_c(sample_rate, "cost207:gauss2", "gmea",
7, self.channel_opts)
self.mpc12 = gauss_rand_proc_c(sample_rate, "cost207:gauss2", "gmea",
8, self.channel_opts)
self.connect(self, (self.mpc_channel, 0))
self.connect(self.mpc1, (self.mpc_channel, 1))
self.connect(self.mpc2, (self.mpc_channel, 2))
self.connect(self.mpc3, (self.mpc_channel, 3))
self.connect(self.mpc4, (self.mpc_channel, 4))
self.connect(self.mpc5, (self.mpc_channel, 5))
self.connect(self.mpc6, (self.mpc_channel, 6))
self.connect(self.mpc7, (self.mpc_channel, 7))
self.connect(self.mpc8, (self.mpc_channel, 8))
self.connect(self.mpc9, (self.mpc_channel, 9))
self.connect(self.mpc10, (self.mpc_channel, 10))
self.connect(self.mpc11, (self.mpc_channel, 11))
self.connect(self.mpc12, (self.mpc_channel, 12))
self.connect(self.mpc_channel, self)