node4 = Node(env, 'N4', r, k)
link13 = Link(env, 'L1-3', B, k)
link23 = Link(env, 'L2-3', B, k)
link34 = Link(env, 'L3-4', B, k)
link4I = Link(env, 'L4-I', B, k)
txA.out = node1
txB.out = node2
node1.add_conn(link13, 'I')
node2.add_conn(link23, 'I')
node3.add_conn(link34, 'I')
node4.add_conn(link4I, 'I')
link13.out = node3
link23.out = node3
link34.out = node4
link4I.out = rxI
simtime = 200
env.run(simtime)
all_packets_sent = txA.packets_sent + txB.packets_sent
all_packets_lost_node = node1.lost_pkts + node2.lost_pkts + node3.lost_pkts + node4.lost_pkts
all_packets_lost_links = link13.lost_pkts + link23.lost_pkts + link34.lost_pkts + link4I.lost_pkts
loss_probability_nodes += 100.0 * (all_packets_lost_node * 1.0 / all_packets_sent)
loss_probability_links += 100.0 * (all_packets_lost_links * 1.0 / all_packets_sent)
loss_probability_all += 100.0 * (
txIB.out = node4
node1.add_conn(link13, 'I')
node1.add_conn(link1A, 'A')
node2.add_conn(link23, 'I')
node2.add_conn(link2B, 'B')
node3.add_conn(link34, 'I')
node3.add_conn(link31, 'A')
node3.add_conn(link32, 'B')
node4.add_conn(link4I, 'I')
node4.add_conn(link43, ['A', 'B'])
link13.out = node3
link23.out = node3
link34.out = node4
link4I.out = rxI
link31.out = node1
link32.out = node2
link43.out = node3
link1A.out = rxA
link2B.out = rxB
simtime = 200
env.run(simtime)
all_packets_sent = txA.packets_sent + txB.packets_sent + txIA.packets_sent + txIB.packets_sent
for K in K_arr:
print Fore.BLUE + Style.BRIGHT + "NODE 1" + Style.RESET_ALL
env = simpy.Environment()
B = 2e6
# Sender (tx) -> Node1 -> Link -> Receiver (rx)
rx = pkt_Receiver(env, 'B')
tx = pkt_Sender(env, 'A', 'B', time_packets)
node1 = Node(env, 'N1', np.inf)
link = Link(env, 'L', B, K)
tx.out = node1
node1.add_conn(link, 'B')
link.out = rx
env.run()
print((Fore.LIGHTBLUE_EX + "Loss probability:" + Fore.GREEN + " %.2f%%" + Style.RESET_ALL) % round((100.0 * (tx.packets_sent-rx.packets_recv) / tx.packets_sent), 5))
print((Fore.LIGHTBLUE_EX + 'Average delay:' + Fore.GREEN + ' %f sec' + Style.RESET_ALL) % round((1.0 * rx.overalldelay / rx.packets_recv), 5))
print((Fore.LIGHTBLUE_EX + 'Transmitted bandwidth:' + Fore.GREEN + ' %.1f Bytes/sec' + Style.RESET_ALL) % round((1.0 * rx.overallbytes / simtime), 5))
mu = B * 1.0 / (tmp * 8)
Wmm1 = 1.0 / (mu - lamb)
print((Fore.LIGHTBLUE_EX + 'M/M/1:' + Fore.GREEN + ' %f' + Style.RESET_ALL) % Wmm1)
Wmd1 = 1.0 * (2 * mu - lamb) / (2 * mu * (mu - lamb))
print((Fore.LIGHTBLUE_EX + 'M/D/1:' + Fore.GREEN + ' %f' + Style.RESET_ALL) % Wmd1)
loss_probability = 0
average_delay = 0
trans_band = 0
for i in range(1, 4):
env = simpy.Environment()
rx = pkt_Receiver(env, 'B')
tx = pkt_Sender(env, 'A', lam, 'B')
node1 = Node(env, 'N1', np.inf)
node2 = Node(env, 'N2', np.inf)
link1 = Link(env, 'L1', B, k)
link2 = Link(env, 'L2', B, k)
tx.out = node1
node1.add_conn(link1, 'B')
link1.out = node2
node2.add_conn(link2, 'B')
link2.out = rx
if k == 10000:
simtime = 500
else:
simtime = 30
env.run(simtime)
loss_probability += 100.0 * (tx.packets_sent-rx.packets_recv)/tx.packets_sent
average_delay += 1.0 * rx.overalldelay / rx.packets_recv
trans_band += 1.0 * rx.overallbytes / simtime
print("---- lambda: %d, queue size: %d, B: %d, simtime: %d ----" % (lam, k, B, simtime))
print('Loss probability: %.2f%%' % loss_probability)
node4 = Node(env, 'N4', r, k)
link13 = Link(env, 'L1-3', B, k)
link23 = Link(env, 'L2-3', B, k)
link34 = Link(env, 'L3-4', B, k)
link4I = Link(env, 'L4-I', B, k)
txA.out = node1
txB.out = node2
node1.add_conn(link13, 'I')
node2.add_conn(link23, 'I')
node3.add_conn(link34, 'I')
node4.add_conn(link4I, 'I')
link13.out = node3
link23.out = node3
link34.out = node4
link4I.out = rxI
simtime = 200
env.run(simtime)
all_packets_sent = txA.packets_sent + txB.packets_sent
all_packets_lost_node = node1.lost_pkts + node2.lost_pkts + node3.lost_pkts + node4.lost_pkts
all_packets_lost_links = link13.lost_pkts + link23.lost_pkts + link34.lost_pkts + link4I.lost_pkts
loss_probability_nodes += 100.0 * (
all_packets_lost_node * 1.0 / all_packets_sent)
loss_probability_links += 100.0 * (
Wmmk = 0
pb = 0
loss_probability = 0
average_delay = 0
trans_band = 0
for i in range(1, 4):
env = simpy.Environment()
rx = pkt_Receiver(env, 'B')
tx = pkt_Sender(env, 'A', lam, 'B')
node2 = Node(env, 'N1', 350, k)
link = Link(env, 'L', B, np.inf)
tx.out = node2
node2.add_conn(link, 'B')
link.out = rx
if k == 10000:
simtime = 500
else:
simtime = 30
env.run(simtime)
loss_probability += 100.0 * (tx.packets_sent -
rx.packets_recv) / tx.packets_sent
average_delay += 1.0 * rx.overalldelay / rx.packets_recv
trans_band += 1.0 * rx.overallbytes / simtime
print(
"---- lambda: %d, queue size: %d, B: %d, simtime: %d ----"
% (lam, k, B, simtime))
txIB.out = node4
node1.add_conn(link13, 'I')
node1.add_conn(link1A, 'A')
node2.add_conn(link23, 'I')
node2.add_conn(link2B, 'B')
node3.add_conn(link34, 'I')
node3.add_conn(link31, 'A')
node3.add_conn(link32, 'B')
node4.add_conn(link4I, 'I')
node4.add_conn(link43, ['A', 'B'])
link13.out = node3
link23.out = node3
link34.out = node4
link4I.out = rxI
link31.out = node1
link32.out = node2
link43.out = node3
link1A.out = rxA
link2B.out = rxB
simtime = 200
env.run(simtime)
all_packets_sent = txA.packets_sent + txB.packets_sent + txIA.packets_sent + txIB.packets_sent
for k in K:
Wk = 0
loss_probability = 0
average_delay = 0
trans_band = 0
for i in range(1, 4):
env = simpy.Environment()
rx = pkt_Receiver(env, 'B')
tx = pkt_Sender(env, 'A', lam, 'B')
node1 = Node(env, 'N1', 300, k)
link1 = Link(env, 'L1', B, k)
tx.out = node1
node1.add_conn(link1, 'B')
link1.out = rx
if k == 10000:
simtime = 500
else:
simtime = 30
env.run(simtime)
loss_probability += 100.0 * (tx.packets_sent -
rx.packets_recv) / tx.packets_sent
average_delay += 1.0 * rx.overalldelay / rx.packets_recv
trans_band += 1.0 * rx.overallbytes / simtime
print(
"---- lambda: %d, queue size: %d, B: %d, simtime: %d ----"
