def send_pkt(self, mac_msg, eof=False):
"""
Send the payload.
@param payload: data to send
@type payload: string
"""
if eof:
msg = gr.message(1) # tell self._pkt_input we're not sending any more packets
else:
info = mac_msg["INFO"] # this dictionary vector contains tx information that will be used during the encoding process
N_cbps = info["N_cbps"] # Upload the number of Coded bits per OFDM Symbol
N_bpsc = info["N_bpsc"] # Upload the number of Coded bits per sub-carrier
N_rate = info["rate"] # Upload the data rate code
N_sym = info["N_sym"] # Upload the OFDM Symbols' number
# MODIFIED FROM ORIGINAL
# It is necessary to update the payload and length field on every packet transmitted
(pkt,Length) = mac_msg["MPDU"], mac_msg["LENGTH"]
#print"Txtime in microseconds:",info["txtime"]
#print"Length of MPDU in bytes = ", info["packet_len"]
#print"Number of DATA OFDM symbols = ", info["N_sym"]
#print"Number of padding bits = ", info["N_pad"]
# Encoding operations
(pkt_scrambled,Length) = ofdm_packet_utils.scrambler(pkt,Length)
pkt_coded = ofdm_packet_utils.conv_encoder(pkt_scrambled, Length, self._regime, N_cbps, N_bpsc, N_sym, N_rate)
pkt_interleaved = ofdm_packet_utils.interleaver(pkt_coded , self._regime, N_cbps, N_bpsc)
msg = gr.message_from_string(pkt_interleaved)
self._pkt_input.msgq().insert_tail(msg)
def send_pkt(self, payload='', eof=False):
"""
Send the payload.
@param payload: data to send
@type payload: string
"""
if eof:
msg = gr.message(1) # tell self._pkt_input we're not sending any more packets
else:
info = ofdm_packet_utils.get_info(payload, self._regime, self._symbol_time)
N_cbps = info["N_cbps"]
N_bpsc = info["N_bpsc"]
N_rate = info["rate"]
N_sym = info["N_sym"]
(pkt,Length) = ofdm_packet_utils.ftw_make(payload,self._regime, self._symbol_time)
(pkt_scrambled,Length) = ofdm_packet_utils.scrambler(pkt,Length)
# print
# print conv_packed_binary_string_to_1_0_string(pkt_scrambled)
pkt_coded = ofdm_packet_utils.conv_encoder(pkt_scrambled, Length, self._regime, N_cbps, N_bpsc, N_sym, N_rate)
# print
# print conv_packed_binary_string_to_1_0_string(pkt_coded)
pkt_interleaved = ofdm_packet_utils.interleaver(pkt_coded , self._regime, N_cbps, N_bpsc)
# print
# print conv_packed_binary_string_to_1_0_string(pkt_interleaved)
msg = gr.message_from_string(pkt_interleaved)
self._pkt_input.msgq().insert_tail(msg)
def send_pkt(self, payload='', eof=False):
"""
Send the payload.
@param payload: data to send
@type payload: string
"""
if eof:
msg = gr.message(
1) # tell self._pkt_input we're not sending any more packets
else:
info = ofdm_packet_utils.get_info(payload, self._regime,
self._symbol_time)
N_cbps = info["N_cbps"]
N_bpsc = info["N_bpsc"]
N_rate = info["rate"]
N_sym = info["N_sym"]
(pkt, Length) = ofdm_packet_utils.ftw_make(payload, self._regime,
self._symbol_time)
(pkt_scrambled, Length) = ofdm_packet_utils.scrambler(pkt, Length)
# print
# print conv_packed_binary_string_to_1_0_string(pkt_scrambled)
pkt_coded = ofdm_packet_utils.conv_encoder(pkt_scrambled, Length,
self._regime, N_cbps,
N_bpsc, N_sym, N_rate)
# print
# print conv_packed_binary_string_to_1_0_string(pkt_coded)
pkt_interleaved = ofdm_packet_utils.interleaver(
pkt_coded, self._regime, N_cbps, N_bpsc)
# print
# print conv_packed_binary_string_to_1_0_string(pkt_interleaved)
msg = gr.message_from_string(pkt_interleaved)
self._pkt_input.msgq().insert_tail(msg)