def __init__(self, network, nodes, frequency=None, channel=1, channel_width=40, antennas=1, tx_power=20.0,
standard: WiFiStandard = WiFiStandard.WIFI_802_11b,
data_rate: WiFiDataRate = WiFiDataRate.DSSS_RATE_11Mbps):
super().__init__(network, nodes)
#: The channel to use.
self.channel = channel
#: The frequency to use.
#:
#: This could collide with other WiFi channels.
self.frequency = frequency
#: The width of the channel in MHz.
self.channel_width = channel_width
#: The number of antennas to use.
self.antennas = antennas
#: The sending power in dBm.
self.tx_power = tx_power
#: The WiFi standard to use.
self.standard = standard
#: The data rate to use.
self.data_rate = data_rate
logger.debug("Setting up physical layer of WiFi.")
self.wifi_phy_helper = wifi.YansWifiPhyHelper.Default()
self.wifi_phy_helper.Set("ChannelWidth", core.UintegerValue(self.channel_width))
if self.frequency:
self.wifi_phy_helper.Set("Frequency", core.UintegerValue(self.frequency))
else:
self.wifi_phy_helper.Set("ChannelNumber", core.UintegerValue(self.channel))
self.wifi_phy_helper.Set("Antennas", core.UintegerValue(self.antennas))
self.wifi_phy_helper.Set("MaxSupportedTxSpatialStreams", core.UintegerValue(self.antennas))
self.wifi_phy_helper.Set("MaxSupportedRxSpatialStreams", core.UintegerValue(self.antennas))
self.wifi_phy_helper.Set("TxPowerStart", core.DoubleValue(self.tx_power))
self.wifi_phy_helper.Set("TxPowerEnd", core.DoubleValue(self.tx_power))
# Enable monitoring of radio headers.
self.wifi_phy_helper.SetPcapDataLinkType(wifi.WifiPhyHelper.DLT_IEEE802_11_RADIO)
wifi_channel = wifi.YansWifiChannel()
self.propagation_delay_model = propagation.ConstantSpeedPropagationDelayModel()
wifi_channel.SetAttribute("PropagationDelayModel", core.PointerValue(self.propagation_delay_model))
if self.standard == WiFiChannel.WiFiStandard.WIFI_802_11p:
# Loss Model, parameter values from Boockmeyer, A. (2020):
# "Hatebefi: Hybrid Application Testbed for Fault Injection"
loss_model = propagation.ThreeLogDistancePropagationLossModel()
loss_model.SetAttribute("Distance0", core.DoubleValue(27.3))
loss_model.SetAttribute("Distance1", core.DoubleValue(68.4))
loss_model.SetAttribute("Distance2", core.DoubleValue(80.7))
loss_model.SetAttribute("Exponent0", core.DoubleValue(1.332671627050236))
loss_model.SetAttribute("Exponent1", core.DoubleValue(2.6812446718062612))
loss_model.SetAttribute("Exponent2", core.DoubleValue(3.5145944762444183))
loss_model.SetAttribute("ReferenceLoss", core.DoubleValue(83.54330702928374))
wifi_channel.SetAttribute("PropagationLossModel", core.PointerValue(loss_model))
else:
loss_model = propagation.LogDistancePropagationLossModel()
wifi_channel.SetAttribute("PropagationLossModel", core.PointerValue(loss_model))
self.wifi_phy_helper.SetChannel(wifi_channel)
#: Helper for creating the WiFi channel.
self.wifi = None
#: All ns-3 devices on this channel.
self.devices_container = None
#: Helper for creating MAC layers.
self.wifi_mac_helper = None
if self.standard != WiFiChannel.WiFiStandard.WIFI_802_11p:
self.wifi = wifi.WifiHelper()
self.wifi.SetRemoteStationManager("ns3::ConstantRateWifiManager",
"DataMode", core.StringValue(self.data_rate.value),
"ControlMode", core.StringValue(self.data_rate.value))
self.wifi.SetStandard(self.standard.value)
self.wifi_mac_helper = wifi.WifiMacHelper()
# Adhoc network between multiple nodes (no access point).
self.wifi_mac_helper.SetType("ns3::AdhocWifiMac")
else:
self.wifi = wave.Wifi80211pHelper.Default()
self.wifi.SetRemoteStationManager("ns3::ConstantRateWifiManager",
"DataMode", core.StringValue(self.data_rate.value),
"ControlMode", core.StringValue(self.data_rate.value),
"NonUnicastMode", core.StringValue(self.data_rate.value))
self.wifi_mac_helper = wave.NqosWaveMacHelper.Default()
# Install on all connected nodes.
logger.debug("Installing the WiFi channel to %d nodes. Mode is %s (data) / %s (control).", len(nodes),
self.standard, self.data_rate)
#: All ns-3 devices on this channel.
self.devices_container = self.wifi.Install(self.wifi_phy_helper, self.wifi_mac_helper, self.ns3_nodes_container)
logger.info('Setting IP addresses on nodes.')
stack_helper = internet.InternetStackHelper()
for i, node in enumerate(nodes):
ns3_device = self.devices_container.Get(i)
address = None
if node.wants_ip_stack():
if node.ns3_node.GetObject(internet.Ipv4.GetTypeId()) is None:
logger.info('Installing IP stack on %s', node.name)
stack_helper.Install(node.ns3_node)
device_container = ns_net.NetDeviceContainer(ns3_device)
ip_address = self.network.address_helper.Assign(device_container).GetAddress(0)
netmask = network.network.prefixlen
address = ipaddress.ip_interface(f'{ip_address}/{netmask}')
interface = Interface(node=node, ns3_device=ns3_device, address=address)
ns3_device.GetMac().SetAddress(ns_net.Mac48Address(interface.mac_address))
node.add_interface(interface)
self.interfaces.append(interface)
def __init__(self,
network,
nodes,
frequency=None,
channel=1,
channel_width=40,
antennas=1,
tx_power=20.0,
standard: WiFiStandard = WiFiStandard.WIFI_802_11a,
data_rate: WiFiDataRate = WiFiDataRate.OFDM_RATE_6Mbps):
super().__init__(network, nodes)
#: The channel to use.
self.channel = channel
#: The frequency to use.
#:
#: This could collide with other WiFi channels.
self.frequency = frequency
#: The width of the channel in MHz.
self.channel_width = channel_width
#: The number of antennas to use.
self.antennas = antennas
#: The sending power in dBm.
self.tx_power = tx_power
#: The WiFi standard to use.
self.standard = standard
#: The data rate to use.
self.data_rate = data_rate
logger.debug("Setting up physical layer of WiFi.")
self.wifi_phy_helper = wifi.YansWifiPhyHelper.Default()
self.wifi_phy_helper.Set("ChannelWidth",
core.UintegerValue(self.channel_width))
if self.frequency:
self.wifi_phy_helper.Set("Frequency",
core.UintegerValue(self.frequency))
else:
self.wifi_phy_helper.Set("ChannelNumber",
core.UintegerValue(self.channel))
self.wifi_phy_helper.Set("Antennas", core.UintegerValue(self.antennas))
self.wifi_phy_helper.Set("MaxSupportedTxSpatialStreams",
core.UintegerValue(self.antennas))
self.wifi_phy_helper.Set("MaxSupportedRxSpatialStreams",
core.UintegerValue(self.antennas))
self.wifi_phy_helper.Set("TxPowerStart",
core.DoubleValue(self.tx_power))
self.wifi_phy_helper.Set("TxPowerEnd", core.DoubleValue(self.tx_power))
# Enable monitoring of radio headers.
self.wifi_phy_helper.SetPcapDataLinkType(
wifi.WifiPhyHelper.DLT_IEEE802_11_RADIO)
wifi_channel_helper = wifi.YansWifiChannelHelper()
wifi_channel_helper.SetPropagationDelay(
"ns3::ConstantSpeedPropagationDelayModel")
wifi_channel_helper.AddPropagationLoss(
"ns3::LogDistancePropagationLossModel")
# wifi_channel_helper.AddPropagationLoss("ns3::RangePropagationLossModel")
self.wifi_phy_helper.SetChannel(wifi_channel_helper.Create())
#: Helper for creating the WiFi channel
self.wifi = wifi.WifiHelper()
self.wifi.SetRemoteStationManager(
"ns3::ConstantRateWifiManager", "DataMode",
core.StringValue(self.data_rate.value), "ControlMode",
core.StringValue(self.data_rate.value))
self.wifi.SetStandard(self.standard.value)
wifi_mac_helper = wifi.WifiMacHelper()
# Adhoc network between multiple nodes (no access point).
wifi_mac_helper.SetType("ns3::AdhocWifiMac")
# Install on all connected nodes.
logger.debug(
"Installing the WiFi channel to %d nodes. Mode is %s (data) / %s (control).",
len(nodes), self.standard, self.data_rate)
#: All ns-3 devices on this channel.
self.devices_container = self.wifi.Install(self.wifi_phy_helper,
wifi_mac_helper,
self.ns3_nodes_container)
logger.info('Setting IP addresses on nodes.')
stack_helper = internet.InternetStackHelper()
for i, node in enumerate(nodes):
ns3_device = self.devices_container.Get(i)
address = None
if node.wants_ip_stack():
if node.ns3_node.GetObject(internet.Ipv4.GetTypeId()) is None:
logger.info('Installing IP stack on %s', node.name)
stack_helper.Install(node.ns3_node)
device_container = ns_net.NetDeviceContainer(ns3_device)
ip_address = self.network.address_helper.Assign(
device_container).GetAddress(0)
netmask = network.network.prefixlen
address = ipaddress.ip_interface(f'{ip_address}/{netmask}')
interface = Interface(node=node,
ns3_device=ns3_device,
address=address)
ns3_device.GetMac().SetAddress(
ns_net.Mac48Address(interface.mac_address))
node.add_interface(interface)
self.interfaces.append(interface)
def main(li):
p2pNodes = network.NodeContainer()
p2pNodes.Create(2)
pointToPoint = point_to_point.PointToPointHelper()
pointToPoint.SetDeviceAttribute(
"DataRate",
core.StringValue(str(int(sum([i[0] for i in li]))) + "Mbps"))
pointToPoint.SetChannelAttribute("Delay", core.StringValue("20ms"))
p2pDevices = pointToPoint.Install(p2pNodes)
csmaNodes = network.NodeContainer()
csmaNodes.Add(p2pNodes.Get(1))
csmaNodes.Create(3)
csma = ccc.CsmaHelper()
csma.SetChannelAttribute("DataRate", core.StringValue("100Mbps"))
csma.SetChannelAttribute("Delay", core.TimeValue(core.NanoSeconds(6560)))
csmaDevices = csma.Install(csmaNodes)
wifiStaNodes = network.NodeContainer()
wifiStaNodes.Create(3)
wifiApNode = p2pNodes.Get(0)
channel = www.YansWifiChannelHelper.Default()
phy = www.YansWifiPhyHelper.Default()
phy.SetChannel(channel.Create())
wifi = www.WifiHelper()
# wifi.SetRemoteStationManager("ns3::AarfWifiManager")
wifi.SetRemoteStationManager("ns3::ConstantRateWifiManager", "DataMode",
core.StringValue("OfdmRate54Mbps"))
mac = www.WifiMacHelper()
ssid = www.Ssid("ns-3-ssid")
mac.SetType("ns3::StaWifiMac", "Ssid", www.SsidValue(ssid),
"ActiveProbing", core.BooleanValue(False))
staDevices = wifi.Install(phy, mac, wifiStaNodes)
mac.SetType("ns3::ApWifiMac", "Ssid", www.SsidValue(ssid))
apDevices = wifi.Install(phy, mac, wifiApNode)
mobility = mob.MobilityHelper()
mobility.SetPositionAllocator("ns3::GridPositionAllocator", "MinX",
core.DoubleValue(0.0), "MinY",
core.DoubleValue(0.0), "DeltaX",
core.DoubleValue(5.0), "DeltaY",
core.DoubleValue(10.0), "GridWidth",
core.UintegerValue(3), "LayoutType",
core.StringValue("RowFirst"))
mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel")
mobility.Install(wifiApNode)
mobility.Install(wifiStaNodes)
stack = internet.InternetStackHelper()
stack.Install(csmaNodes)
stack.Install(wifiApNode)
stack.Install(wifiStaNodes)
address = internet.Ipv4AddressHelper()
address.SetBase(network.Ipv4Address("10.1.1.0"),
network.Ipv4Mask("255.255.255.0"))
address.Assign(p2pDevices)
address.SetBase(network.Ipv4Address("10.1.2.0"),
network.Ipv4Mask("255.255.255.0"))
address.Assign(csmaDevices)
address.SetBase(network.Ipv4Address("10.1.3.0"),
network.Ipv4Mask("255.255.255.0"))
address.Assign(staDevices)
address.Assign(apDevices)
client = csmaNodes.Get(0)
soc = network.Socket.CreateSocket(client,
internet.UdpSocketFactory.GetTypeId())
pre = li[0]
client.AddApplication(send(soc, pre[0], pre[1], False))
for i in range(1, 4):
client = csmaNodes.Get(i)
soc = network.Socket.CreateSocket(
client, internet.UdpSocketFactory.GetTypeId())
pre = li[i]
client.AddApplication(send(soc, pre[0], pre[1]))
client = wifiStaNodes.Get(0)
soc = network.Socket.CreateSocket(client,
internet.UdpSocketFactory.GetTypeId())
client.AddApplication(recv(soc))
client = wifiStaNodes.Get(1)
soc = network.Socket.CreateSocket(client,
internet.UdpSocketFactory.GetTypeId())
client.AddApplication(recv(soc, False))
internet.Ipv4GlobalRoutingHelper.PopulateRoutingTables()
core.Simulator.Stop(core.Seconds(3.0))
# pointToPoint.EnablePcapAll("third")
# phy.EnablePcapAll("csma")
# csma.EnablePcapAll("third", True)
# stack.EnablePcapIpv4All('ics')
core.Simulator.Run()
core.Simulator.Destroy()
# if n!=0:
# n-=1
# print"第%d个事件离开队列的时间是："%event_number_out,T_out[(event_number_out-1)],"K=",K,"n=",n
# sim.Schedule(core.Seconds(0),enq,sim.Now().GetSeconds())
# sim.Run()
# sim.Destroy()
#encoding=utf8
from ns import core
sim = core.Simulator
n, K, Lambda, Mu = 0, 0, 2.0, 2.0
T_in, T_out = [], []
time_in, time_out = 0, 0
r_eq = core.ExponentialRandomVariable()
r_deq = core.ExponentialRandomVariable()
r_eq.SetAttribute("Mean", core.DoubleValue(Lambda))
r_deq.SetAttribute("Mean", core.DoubleValue(Mu))
event_number = 0 #定义处理的事件件数
event_number_out = 0
num = -1
isjudge = True
def enq(argv):
global event_number, n, k, T_in, T_out, time_in, time_out, isjudge, num
if isjudge:
event_number += 1
if event_number <= 100 and isjudge: #处理100件事件完则停止向调度器增加事件
if event_number == 100:
isjudge = False
now = sim.Now().GetSeconds()