def run(self):
while True:
self.getack.wait()
settings.ts_print("MAC | ACKReceivingThread: wait for ACK", time.time())
self.getack.clear()
self.receive_ack()
self._client.close()
def run(self):
if self._options.verbose:
settings.ts_print (' '.join(["Established connection:", self._details [ 0 ]]), time.time())
while True:
_payload = self._client.recv(1024)
self.change_width(_payload)
self._client.close()
def send_width(self):
payload = '_'.join([str(self.width_map), str(self.occupied_tones)])
try:
self._client.send(payload)
if self._verbose:
settings.ts_print("MAC | sent width change params", time.time())
except socket.error:
print 'Could not send width, socket error'
def change_width(self, payload):
_values = payload.split('_')
if self._options.verbose:
settings.ts_print(' '.join(['Change map to:', str(_values[0]), 'and num carriers to', str(_values[1])]), time.time())
_new_width_map = _values[0]
_new_occupied_tones = int(_values[1])
self._options.width_map = _new_width_map
self._tb.stop()
self._tb.wait()
self._tb.rxpath.reset_ofdm_params(_new_width_map)
self._tb.start()
if self._options.verbose:
settings.ts_print('Change width completed',time.time())
def run(self):
if self._verbose:
settings.ts_print (' '.join(["Established connection:", str(self._details [ 0 ])]), time.time())
while True:
self.ok2ack.wait()
self.ok2ack.clear()
_gain = ""
for i in range(len(self.width_ranking)):
_gain = ''.join([_gain, "_", str(self.width_ranking[i])])
self._channel.send(''.join([str(self.pktno), "_", str(self.good), _gain]))
if self._verbose:
settings.ts_print(' '.join(["MAC | ACKSendingThread: sent ACK #", str(self.pktno)]), time.time())
self._channel.close()
def update_table(self, pkt_size, current_mcs, current_width, num_sent, num_acked):
_size_bin = _size_to_bin(pkt_size)
_current_time = time.time()
self.table[_size_bin]["last_update"] = time.time()
self.table[_size_bin][current_mcs][current_width]["tries"] = num_sent
self.table[_size_bin][current_mcs][current_width]["packets_acked"] = num_acked
if num_acked == 0:
self.table[_size_bin][current_mcs][current_width]["succ_fails"] = num_sent
self.table[_size_bin][current_mcs][current_width]["loss"] = 1 - self.table[_size_bin][current_mcs][current_width]["packets_acked"] / float(self.table[_size_bin][current_mcs][current_width]["tries"])
self.table[_size_bin][current_mcs][current_width]["total_tx_time"] = self.table[_size_bin][current_mcs][current_width]["tries"] * self.table[_size_bin][current_mcs][current_width]["lossless_tx_time"]
if self.table[_size_bin][current_mcs][current_width]["packets_acked"] > 0:
self.table[_size_bin][current_mcs][current_width]["average_tx_time"] = self.table[_size_bin][current_mcs][current_width]["total_tx_time"]/float(self.table[_size_bin][current_mcs][current_width]["packets_acked"])
else:
self.table[_size_bin][current_mcs][current_width]["average_tx_time"] = sys.maxint
settings.ts_print("RATE | table update for " + current_mcs + " " + str(current_width) +" to "+str(self.table[_size_bin][current_mcs][current_width]["loss"]), time.time())
def receive_ack(self):
_payload = ""
try:
_payload = self._client.recv(1024)
if not _payload:
if self._verbose:
settings.ts_print("MAC | ACKReceivingThread: ACK not received!", time.time())
self.good_ack = False
else:
if self._verbose:
settings.ts_print(' '.join(["MAC | ACKReceivingThread: ACK received:", _payload, "wanted", str(self.ackwanted)]), time.time())
_values = _payload.split('_')
if (int(_values[0])==self.ackwanted) and (str(_values[1]) == "True"):
self.good_ack = True
else:
self.good_ack = False
if self._top.refresh_gains:
j = 0
for i in range (self._top.num_groups):
gain_rank = int(_values[i+2])
if int(gain_rank) != self._top.num_groups//2:
self._top.group_sort[j] = gain_rank
j += 1
self._top.refresh_gains = False
self.acked.set()
except:
if self._verbose:
settings.ts_print("MAC | ACKReceivingThread: ACK not received (except)", time.time())
self.good_ack = False
self.acked.set()
finally:
pass
def run(self, steps):
stats_steps = 0 # NOTE: we do not take stats of probe packets
correct = 0
total = 0
f = open('losses.txt', 'w')
for i in range(steps):
change = False
if (i == 1):
change = True
self.s.change_width(462)
self._current_width_x = 462
if (i == 301):
change = True
self.s.change_width(132)
self._current_width_x = 132
if (i == 601):
change = True
self.s.change_width(462)
self._current_width_x = 462
if (self._state == _NORMAL):
if (i%_P == 0):
self._state=_PROBING
self.old_mcs = self._current_mcs
self.old_width = self._current_width
if not change:
_new_mcs, _new_width = self.s.find_rate(self._current_mcs, self._current_width, self._state)
else:
_new_mcs, _new_width = self.s.find_rate(self._current_mcs, self._current_width_x, self._state)
_new_width_map = "".join(self.width_to_groups(_new_width))
if self.verbose:
settings.ts_print( ' '.join(["Calculated", str(_new_mcs), str(_new_width), "width map", str(_new_width_map)]), time.time())
if _new_width != self._current_width:
while not self.txpath.ofdm_tx._pkt_input.msgq().empty_p():
pass
self.txpath.reset_ofdm_params_groups(_new_width_map, _new_mcs)
self.width_sender.width_map = _new_width_map
self.width_sender.sendit.set()
time.sleep(0.1) # NOTE: pause for the other end to reconfigure itself
elif _new_mcs != self._current_mcs:
while not self.txpath.ofdm_tx._pkt_input.msgq().empty_p():
pass
self.txpath.reset_ofdm_params_groups(_new_width_map, _new_mcs)
self._current_mcs = _new_mcs
self._current_width = _new_width
payload = (self._pkt_size-2) * chr(i & 0xff)
payload = struct.pack('!H', i & 0xffff) + payload
time.sleep(self._spacing)
self.send_pkt(payload, False, i)
self.ack_recvr.ackwanted = i
self.ack_recvr.getack.set()
self.ack_recvr.acked.wait()
self.ack_recvr.acked.clear()
value = self.ack_recvr.good_ack
settings.ts_print(' '.join(["Tx num:", str(i), _new_mcs, str(_new_width), str(value)]), time.time())
self.s.update_table(self._current_mcs, self._current_width, value)
if i%20 != 0:
if self._state == _NORMAL:
small_current_time = float(_coding_rate[self._current_mcs]*self._time_per_subcarrier)/(_bits_per_tone[self._current_mcs]*self._current_width)
self._small_time += small_current_time
small_energy = self.calc_energy(small_current_time, self._current_width)
self._small_total_energy += small_energy
if value:
correct += 1
total += 1
else:
if (total > 0):
loss = 1 - float(correct)/total
bitrate = 1/(self._small_time/total)
energy = self._small_total_energy/float(total)
if correct > 0:
tput = bitrate*(correct/float(total))
else:
tput = 0
else:
loss = 1
bitrate = 0
energy = 0
tput = 0
correct = 0
total = 0
self._small_time = 0
self._small_total_energy = 0
print str(i) + " " + str(loss) + "\t" + str(tput) + "\t" + str(bitrate) + "\t" + str(energy) + "\n"
f.write(str(i) + " " + str(loss) + "\t" + str(tput) + "\t" + str(bitrate) + "\t" + str(energy) + "\n")
self.s.print_table()
if self.verbose:
self.s.print_table()
if (self._state == _PROBING):
if self._current_width != self.old_width:
_new_width_map = string.join(self.width_to_groups(self.old_width), "")
_new_mcs = self.old_mcs
while not self.txpath.ofdm_tx._pkt_input.msgq().empty_p():
pass
if self.verbose:
settings.ts_print("Reset to old params after probing - width and MCS change", time.time())
self.txpath.reset_ofdm_params_groups(_new_width_map, _new_mcs)
self.width_sender.width_map = _new_width_map
self.width_sender.sendit.set()
time.sleep(0.1)
elif self._current_mcs != self.old_mcs:
_new_width_map = string.join(self.width_to_groups(self.old_width), "")
_new_mcs = self.old_mcs
while not self.txpath.ofdm_tx._pkt_input.msgq().empty_p():
pass
if self.verbose:
settings.ts_print("Reset to old params after probing - MCS change", time.time())
self.txpath.reset_ofdm_params_groups(_new_width_map, _new_mcs)
self._current_mcs = self.old_mcs
self._current_width = self.old_width
elif i > 10: # we skip the first 100 packets when collecting the stats
current_time = float(_coding_rate[self._current_mcs]*self._time_per_subcarrier)/(_bits_per_tone[self._current_mcs]*self._current_width)
self._time += current_time
stats_steps += 1
energy = self.calc_energy(current_time, self._current_width)
self._total_energy += energy
self._total_ok += int(value)
self._state = _NORMAL
avg_bitrate = 1/(self._time/stats_steps)
avg_energy = self._total_energy/float(stats_steps)
avg_tput = avg_bitrate*(self._total_ok/float(stats_steps))
print ' '.join(["Avg loss:", str(1 - self._total_ok/float(stats_steps)), "total time", str(self._time), " avg bitrate", str(avg_bitrate), "avg tput ", str(avg_tput)])
MOS = self.calc_mos(1 - self._total_ok/float(stats_steps))
print ' '.join(["MOS:", str(MOS), "energy:", str(avg_energy)]) #(1 - self.total_ok/float(steps))
f.close()
def run(self, steps):
stats_steps = 0 # NOTE: we do not take stats of probe packets
for i in range(steps):
if (self._state == _NORMAL):
if (i%_P == 0):
self._state=_PROBING
self.old_mcs = self._current_mcs
self.old_width = self._current_width
_new_mcs, _new_width = self.s.find_rate(self._current_mcs, self._current_width, self._state)
_new_width_map = "".join(self.width_to_groups(_new_width))
if self.verbose:
settings.ts_print( ' '.join(["Calculated", str(_new_mcs), str(_new_width), "width map", str(_new_width_map)]), time.time())
if _new_width != self._current_width:
while not self.txpath.ofdm_tx._pkt_input.msgq().empty_p():
pass
self.txpath.reset_ofdm_params_groups(_new_width_map, _new_mcs)
self.width_sender.width_map = _new_width_map
self.width_sender.sendit.set()
time.sleep(0.1) # NOTE: pause for the other end to reconfigure itself
elif _new_mcs != self._current_mcs:
while not self.txpath.ofdm_tx._pkt_input.msgq().empty_p():
pass
self.txpath.reset_ofdm_params_groups(_new_width_map, _new_mcs)
self._current_mcs = _new_mcs
self._current_width = _new_width
payload = (self._pkt_size-2) * chr(i & 0xff)
payload = struct.pack('!H', i & 0xffff) + payload
time.sleep(self._spacing)
self.send_pkt(payload, False, i)
self.ack_recvr.ackwanted = i
self.ack_recvr.getack.set()
self.ack_recvr.acked.wait()
self.ack_recvr.acked.clear()
value = self.ack_recvr.good_ack
settings.ts_print(' '.join(["Tx num:", str(i), _new_mcs, str(_new_width), str(value)]), time.time())
self.s.update_table(self._current_mcs, self._current_width, value)
self.s.print_table()
if self.verbose:
self.s.print_table()
if (self._state == _PROBING):
if self._current_width != self.old_width:
_new_width_map = string.join(self.width_to_groups(self.old_width), "")
_new_mcs = self.old_mcs
while not self.txpath.ofdm_tx._pkt_input.msgq().empty_p():
pass
if self.verbose:
settings.ts_print("Reset to old params after probing - width and MCS change", time.time())
self.txpath.reset_ofdm_params_groups(_new_width_map, _new_mcs)
self.width_sender.width_map = _new_width_map
self.width_sender.sendit.set()
time.sleep(0.1)
elif self._current_mcs != self.old_mcs:
_new_width_map = string.join(self.width_to_groups(self.old_width), "")
_new_mcs = self.old_mcs
while not self.txpath.ofdm_tx._pkt_input.msgq().empty_p():
pass
if self.verbose:
settings.ts_print("Reset to old params after probing - MCS change", time.time())
self.txpath.reset_ofdm_params_groups(_new_width_map, _new_mcs)
self._current_mcs = self.old_mcs
self._current_width = self.old_width
elif i > 100: # we skip the first 100 packets when collecting the stats
current_time = float(_coding_rate[self._current_mcs]*self._time_per_subcarrier)/(_bits_per_tone[self._current_mcs]*self._current_width)
self._time += current_time
stats_steps += 1
energy = self.calc_energy(current_time, self._current_width)
self._total_energy += energy
self._total_ok += int(value)
self._state = _NORMAL
avg_bitrate = 1/(self._time/stats_steps)
avg_energy = self._total_energy/float(stats_steps)
avg_tput = avg_bitrate*(self._total_ok/float(stats_steps))
print ' '.join(["Avg loss:", str(1 - self._total_ok/float(stats_steps)), "total time", str(self._time), " avg bitrate", str(avg_bitrate), "avg tput ", str(avg_tput)])
MOS = self.calc_mos(1 - self._total_ok/float(stats_steps))
print ' '.join(["MOS:", str(MOS), "energy:", str(avg_energy)]) #(1 - self.total_ok/float(steps))
