wifi-lte-coexistence.cc:<\/p>\n
#include \"ns3\/core-module.h\"\r\n#include \"ns3\/config-store-module.h\"\r\n#include \"ns3\/mobility-module.h\"\r\n#include \"ns3\/gnuplot.h\"\r\n#include \"ns3\/wifi-module.h\"\r\n#include \"ns3\/lte-module.h\"\r\n#include \"ns3\/network-module.h\"\r\n#include \"ns3\/internet-module.h\"\r\n#include \"ns3\/point-to-point-module.h\"\r\n#include \"ns3\/applications-module.h\"\r\n#include \"ns3\/spectrum-module.h\"\r\n#include \"ns3\/lte-wifi-coexistence-module.h\"\r\n#include \"ns3\/lte-spectrum-value-helper.h\"\r\n#include <iostream>\r\n#include <iomanip>\r\n#include <sstream>\r\n#include <stdint.h>\r\n\r\nNS_LOG_COMPONENT_DEFINE (\"Wifi11aLteDcBasic\");\r\n\r\nusing namespace ns3;\r\n\r\nstd::ofstream Pcolfile;\r\nstd::ofstream signalArrivalTraceFile;\r\nstd::ofstream cwTraceFile;\r\nstd::ofstream backoffTraceFile;\r\nstd::ofstream phyTxTraceFile;\r\nstd::ofstream macTxTraceFile;\r\nstd::ofstream socketRecvTraceFile;\r\nstd::vector<uint32_t> wifiPacketsReceived (100);\r\nstd::vector<uint32_t> wifiBytesReceived (100);\r\nstd::vector<double> wifiThroughputPerNode (100);\r\nstd::vector<double> wifiPacketsSent (100);\r\nstd::vector<uint32_t> ltePacketsReceived (100);\r\nstd::vector<uint32_t> lteBytesReceived (100);\r\nstd::vector<double> lteThroughputPerNode (100);\r\nstd::vector<double> ltePacketsSent (100);\r\ndouble progress;\r\n\/\/ Parse context strings of the form \"\/NodeList\/3\/DeviceList\/1\/Mac\/Assoc\"\r\n\/\/ to extract the NodeId\r\nuint32_t\r\nContextToNodeId1 (std::string context)\r\n{\r\n std::string sub = context.substr (10); \/\/ skip \"\/NodeList\/\"\r\n uint32_t pos = sub.find (\"\/Device\");\r\n NS_LOG_DEBUG (\"Found NodeId \" << atoi (sub.substr (0, pos).c_str ()));\r\n return atoi (sub.substr (0,pos).c_str ());\r\n}\r\n\r\nuint32_t pktSize = 100; \/\/1500\r\n\r\n\/\/ Function calls for tracing.\r\nvoid\r\nSignalArrivalTrace (std::string context, bool signalType, uint32_t senderNodeId, double rxPower, Time duration)\r\n{\r\n signalArrivalTraceFile << std::setprecision (6) << std::fixed << Simulator::Now ().GetSeconds () << (signalType ? \" wifi \" : \" lte \") << senderNodeId << \" \" << rxPower << \" \" << duration.GetSeconds () << std::endl;\r\n}\r\n\r\nvoid\r\nCwTrace (std::string context, uint32_t oldVal, uint32_t newVal)\r\n{\r\n cwTraceFile << Simulator::Now ().GetSeconds () << \" \" << ContextToNodeId1 (context) << \" \" << newVal << std::endl;\r\n}\r\n\r\nvoid\r\nBackoffTrace (std::string context, uint32_t newVal)\r\n{\r\n backoffTraceFile << Simulator::Now ().GetSeconds () << \" \" << ContextToNodeId1 (context) << \" \" << newVal << std::endl;\r\n}\r\n\r\nvoid\r\nLteSpectrumPhyTxTrace (std::string context, Ptr<const PacketBurst> pb)\r\n{\r\n uint32_t nodeId = ContextToNodeId1 (context);\r\n if (Simulator::Now () >= Seconds (1))\r\n {\r\n ltePacketsSent[nodeId] += pb->GetNPackets ();\r\n }\r\n\r\n}\r\n\r\nvoid\r\nPhyTxTrace (std::string context, Ptr<const Packet> p)\r\n{\r\n phyTxTraceFile << Simulator::Now ().GetSeconds () << \" \" << ContextToNodeId1 (context) << \" \" << p->GetSize () << std::endl;\r\n uint32_t nodeId = ContextToNodeId1 (context);\r\n if (p->GetSize () > pktSize)\r\n {\r\n wifiPacketsSent[nodeId]++;\r\n }\r\n}\r\n\r\nvoid\r\nMacTxTrace (std::string context, Ptr<const Packet> p)\r\n{\r\n macTxTraceFile << Simulator::Now ().GetSeconds () << \" \" << ContextToNodeId1 (context) << \" \" << p->GetSize () << std::endl;\r\n}\r\n\r\nvoid\r\nSocketRecvTrace (std::string context, Ptr<const Packet> p, const Address &addr)\r\n{\r\n socketRecvTraceFile << Simulator::Now ().GetSeconds () << \" \" << ContextToNodeId1 (context) << \" \" << p->GetSize () << std::endl;\r\n}\r\n\r\nvoid\r\nSocketRecvStats (std::string context, Ptr<const Packet> p, const Address &addr)\r\n{\r\n uint32_t nodeId = ContextToNodeId1 (context);\r\n if (Simulator::Now () >= Seconds (1))\r\n {\r\n wifiBytesReceived[nodeId] += p->GetSize ();\r\n wifiPacketsReceived[nodeId]++;\r\n }\r\n}\r\n\r\nvoid\r\nSinkRecvStats (std::string context, Ptr<const Packet> p, const Address &addr)\r\n{\r\n uint32_t nodeId = ContextToNodeId1 (context);\r\n \/\/ Each packet is 1024 bytes UDP payload, but at L2, we need to add 8 + 20 header bytes to support throughput calculations at the LTE layer\r\n \/\/std::cout<< \" print packet size: \" << p->GetSize () << std::endl;\r\n if (Simulator::Now () >= Seconds (1))\r\n {\r\n lteBytesReceived[nodeId] += (p->GetSize () + 20 + 8);\r\n ltePacketsReceived[nodeId]++;\r\n }\r\n}\r\n\r\n\r\nvoid\r\nRestartCalc ()\r\n{\r\n std::fill (wifiBytesReceived.begin (), wifiBytesReceived.end (), 0);\r\n std::fill (wifiPacketsReceived.begin (), wifiPacketsReceived.end (), 0);\r\n std::fill (wifiPacketsSent.begin (), wifiPacketsSent.end (), 0);\r\n std::fill (lteBytesReceived.begin (), lteBytesReceived.end (), 0);\r\n std::fill (ltePacketsReceived.begin (), ltePacketsReceived.end (), 0);\r\n std::fill (ltePacketsSent.begin (), ltePacketsSent.end (), 0);\r\n}\r\n\r\nvoid\r\nShowProgress (void)\r\n{\r\n std::cout << \" Progress to \" << Simulator::Now ().As (Time::S) << std::endl;\r\n Simulator::Schedule (Seconds (progress), &ShowProgress);\r\n}\r\n\r\nclass Experiment\r\n{\r\npublic:\r\n Experiment ();\r\n int Run (const WifiHelper &wifi, uint32_t pktSize, uint32_t netSize, double delta, uint32_t gridWidth, double duration, bool tracing, double lteDutyCycle, bool useAbs, Time lteDutyCyclePeriod);\r\nprivate:\r\n};\r\n\r\nExperiment::Experiment ()\r\n{\r\n}\r\n\r\nint\r\nExperiment::Run (const WifiHelper &wifi,\r\n uint32_t pktSize, uint32_t networkSize, double delta, uint32_t gridWidth, double duration, bool tracing, double lteDutyCycle, bool useAbs, Time lteDutyCyclePeriod)\r\n{\r\n bool saveAttributeConfig = false;\r\n\r\n NodeContainer c;\r\n c.Create (networkSize);\r\n\r\n Ptr<MultiModelSpectrumChannel> spectrumChannel;\r\n Ptr<LteHelper> lteHelper;\r\n Ptr<PointToPointEpcHelper> epcHelper;\r\n Ptr<Node> pgw;\r\n Ptr<Node> remoteHost;\r\n NodeContainer remoteHostContainer;\r\n NodeContainer ueNodes;\r\n NodeContainer enbNodes;\r\n ApplicationContainer clientApps;\r\n ApplicationContainer serverApps;\r\n\r\n lteHelper = CreateObject<LteHelper> ();\r\n epcHelper = CreateObject<PointToPointEpcHelper> ();\r\n lteHelper->SetEpcHelper (epcHelper);\r\n lteHelper->SetEnbDeviceAttribute (\"DlBandwidth\", UintegerValue (100)); \/\/ 20MHz for 100 RU\r\n lteHelper->SetEnbDeviceAttribute (\"DlEarfcn\", UintegerValue (255444)); \/\/ for 5180 MHz fc\r\n pgw = epcHelper->GetPgwNode ();\r\n remoteHostContainer.Create (1);\r\n remoteHost = remoteHostContainer.Get (0);\r\n InternetStackHelper internet;\r\n internet.Install (remoteHostContainer);\r\n\r\n \/\/ Create the Internet\r\n PointToPointHelper p2ph;\r\n p2ph.SetDeviceAttribute (\"DataRate\", DataRateValue (DataRate (\"100Gb\/s\")));\r\n p2ph.SetDeviceAttribute (\"Mtu\", UintegerValue (1500));\r\n p2ph.SetChannelAttribute (\"Delay\", TimeValue (Seconds (0.00010)));\r\n NetDeviceContainer internetDevices = p2ph.Install (pgw, remoteHost);\r\n Ipv4AddressHelper ipv4h;\r\n ipv4h.SetBase (\"1.0.0.0\", \"255.0.0.0\");\r\n Ipv4InterfaceContainer internetIpIfaces = ipv4h.Assign (internetDevices);\r\n\r\n Ipv4StaticRoutingHelper ipv4RoutingHelper;\r\n Ptr<Ipv4StaticRouting> remoteHostStaticRouting = ipv4RoutingHelper.GetStaticRouting (remoteHost->GetObject<Ipv4> ());\r\n remoteHostStaticRouting->AddNetworkRouteTo (Ipv4Address (\"7.0.0.0\"), Ipv4Mask (\"255.0.0.0\"), 1);\r\n\r\n enbNodes.Create (1);\r\n ueNodes.Create (1);\r\n\r\n \/\/ Install Mobility Model\r\n Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();\r\n for (uint16_t i = 0; i < 2; i++)\r\n {\r\n positionAlloc->Add (Vector (0.1 * i, 0, 0));\r\n }\r\n MobilityHelper mobility;\r\n mobility.SetMobilityModel (\"ns3::ConstantPositionMobilityModel\");\r\n mobility.SetPositionAllocator (positionAlloc);\r\n mobility.Install (enbNodes);\r\n mobility.Install (ueNodes);\r\n\r\n \/\/ Install LTE Devices to the nodes\r\n NetDeviceContainer enbLteDevs = lteHelper->InstallEnbDevice (enbNodes);\r\n NetDeviceContainer ueLteDevs = lteHelper->InstallUeDevice (ueNodes);\r\n\r\n \/\/ Install the IP stack on the UEs\r\n internet.Install (ueNodes);\r\n Ipv4InterfaceContainer ueIpIface;\r\n ueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ueLteDevs));\r\n \/\/ Assign IP address to UEs, and install applications\r\n for (uint32_t u = 0; u < ueNodes.GetN (); ++u)\r\n {\r\n Ptr<Node> ueNode = ueNodes.Get (u);\r\n \/\/ Set the default gateway for the UE\r\n Ptr<Ipv4StaticRouting> ueStaticRouting = ipv4RoutingHelper.GetStaticRouting (ueNode->GetObject<Ipv4> ());\r\n ueStaticRouting->SetDefaultRoute (epcHelper->GetUeDefaultGatewayAddress (), 1);\r\n }\r\n\r\n \/\/ Attach one UE per eNodeB\r\n for (uint16_t i = 0; i < ueLteDevs.GetN (); i++)\r\n {\r\n lteHelper->Attach (ueLteDevs.Get (i), enbLteDevs.Get (i));\r\n \/\/ side effect: the default EPS bearer will be activated\r\n }\r\n\r\n \/\/ Obtain channel pointer from LTE, for use in Wi-Fi\r\n Ptr<LteEnbNetDevice> lteEnbNetDevice = DynamicCast<LteEnbNetDevice> (enbLteDevs.Get (0));\r\n NS_ASSERT (lteEnbNetDevice);\r\n Ptr<SpectrumChannel> downlinkSpectrumChannel = lteEnbNetDevice->GetPhy (0)->GetDownlinkSpectrumPhy ()->GetChannel ();\r\n spectrumChannel = DynamicCast<MultiModelSpectrumChannel> (downlinkSpectrumChannel);\r\n NS_ASSERT (spectrumChannel);\r\n\r\n if (useAbs)\r\n {\r\n \/\/ determine the LTE Almost Blank Subframe (ABS) pattern that will implement the desired duty cycle\r\n NS_ABORT_MSG_UNLESS (lteDutyCycle >= 0 && lteDutyCycle <= 1, \"lteDutyCycle must be between 1 and 0\");\r\n std::bitset<40> absPattern;\r\n \/\/ need at least two regular subframes for MIB and SIB1\r\n absPattern[0] = 0;\r\n absPattern[35] = 0;\r\n uint32_t regularSubframes = 2;\r\n int32_t subframe = 39;\r\n while ((regularSubframes < 40) && (regularSubframes \/ 40.0 < lteDutyCycle))\r\n {\r\n if (subframe != 0 && subframe != 35)\r\n {\r\n absPattern[subframe] = 0;\r\n ++regularSubframes;\r\n }\r\n --subframe;\r\n }\r\n while (subframe >= 0)\r\n {\r\n if (subframe != 0 && subframe != 35)\r\n {\r\n absPattern[subframe] = 1;\r\n }\r\n --subframe;\r\n }\r\n double actualLteDutyCycle = regularSubframes \/ 40.0;\r\n std::cout << \"LTE ABS-based duty cycle: requested \" << lteDutyCycle << \", actual \" << actualLteDutyCycle << \", ABS pattern \" << absPattern << std::endl;\r\n lteEnbNetDevice->GetRrc ()->SetAbsPattern (absPattern);\r\n }\r\n else\r\n {\r\n \/\/ Multiplying Time object directly by double value does not work\r\n Time onDuration = Seconds (lteDutyCyclePeriod.GetSeconds () * lteDutyCycle);\r\n std::cout << \"LTE duty cycle access manager: requested \" << lteDutyCycle << \", period \" << lteDutyCyclePeriod.GetMilliSeconds () << \" ms \" << std::fixed << std::setprecision (2) << \" on duration \" << onDuration.GetSeconds () * 1000 << \" ms\" << std::endl;\r\n Ptr<DutyCycleAccessManager> dutyCycleAccessManager = CreateObject<DutyCycleAccessManager> ();\r\n dutyCycleAccessManager->SetDutyCyclePeriod (lteDutyCyclePeriod);\r\n dutyCycleAccessManager->SetOnDuration (onDuration);\r\n lteEnbNetDevice->GetPhy ()->SetChannelAccessManager (dutyCycleAccessManager);\r\n }\r\n\r\n \/\/ Install and start applications on UEs and remote host\r\n uint16_t dlPort = 1234;\r\n uint16_t ulPort = 2000;\r\n uint16_t otherPort = 3000;\r\n for (uint32_t u = 0; u < ueNodes.GetN (); ++u)\r\n {\r\n ++ulPort;\r\n ++otherPort;\r\n PacketSinkHelper dlPacketSinkHelper (\"ns3::UdpSocketFactory\", InetSocketAddress (Ipv4Address::GetAny (), dlPort));\r\n PacketSinkHelper ulPacketSinkHelper (\"ns3::UdpSocketFactory\", InetSocketAddress (Ipv4Address::GetAny (), ulPort));\r\n PacketSinkHelper packetSinkHelper (\"ns3::UdpSocketFactory\", InetSocketAddress (Ipv4Address::GetAny (), otherPort));\r\n serverApps.Add (dlPacketSinkHelper.Install (ueNodes.Get (u)));\r\n serverApps.Add (ulPacketSinkHelper.Install (remoteHost));\r\n serverApps.Add (packetSinkHelper.Install (ueNodes.Get (u)));\r\n\r\n UdpClientHelper dlClient (ueIpIface.GetAddress (u), dlPort);\r\n\r\n dlClient.SetAttribute (\"Interval\", TimeValue (MicroSeconds (100)));\r\n dlClient.SetAttribute (\"MaxPackets\", UintegerValue (UINT32_MAX));\r\n clientApps.Add (dlClient.Install (remoteHost));\r\n\r\n }\r\n\t\r\n serverApps.Start (Seconds (0.01));\r\n clientApps.Start (Seconds (0.01));\r\n \/\/ p2ph.EnablePcapAll(\"my-lte\");\r\n\r\n SpectrumWifiPhyHelper spectrumPhy = SpectrumWifiPhyHelper::Default ();\r\n spectrumPhy.SetChannel (spectrumChannel);\r\n spectrumPhy.Set (\"Frequency\", UintegerValue (5180)); \/\/ channel 36 at 20 MHz\r\n spectrumPhy.Set (\"TxPowerStart\", DoubleValue (1));\r\n spectrumPhy.Set (\"TxPowerEnd\", DoubleValue (1));\r\n\r\n WifiMacHelper mac;\r\n mac.SetType (\"ns3::AdhocWifiMac\");\r\n NetDeviceContainer devices = wifi.Install (spectrumPhy, mac, c);\r\n\r\n mobility.SetPositionAllocator (\"ns3::GridPositionAllocator\",\r\n \"MinX\", DoubleValue (0.0),\r\n \"MinY\", DoubleValue (0.0),\r\n \"DeltaX\", DoubleValue (delta),\r\n \"DeltaY\", DoubleValue (delta),\r\n \"GridWidth\", UintegerValue (gridWidth),\r\n \"LayoutType\", StringValue (\"RowFirst\"));\r\n mobility.SetMobilityModel (\"ns3::ConstantPositionMobilityModel\");\r\n mobility.Install (c);\r\n\r\n PacketSocketHelper packetSocket;\r\n packetSocket.Install (c);\r\n\r\n uint32_t nNodes = c.GetN ();\r\n ApplicationContainer apps;\r\n TypeId tid = TypeId::LookupByName (\"ns3::UdpSocketFactory\");\r\n Ptr<UniformRandomVariable> startTime = CreateObject<UniformRandomVariable> ();\r\n startTime->SetAttribute (\"Max\", DoubleValue (200.0));\r\n for (uint32_t i = 0; i < nNodes; ++i)\r\n {\r\n uint32_t j = (i + 1) % nNodes;\r\n PacketSocketAddress socketAddr;\r\n socketAddr.SetSingleDevice (devices.Get (i)->GetIfIndex ());\r\n socketAddr.SetPhysicalAddress (devices.Get (j)->GetAddress ());\r\n socketAddr.SetProtocol (1);\r\n\r\n Ptr<PacketSocketClient> client = CreateObject<PacketSocketClient> ();\r\n client->SetRemote (socketAddr);\r\n c.Get (i)->AddApplication (client);\r\n client->SetAttribute (\"PacketSize\", UintegerValue (pktSize));\r\n client->SetAttribute (\"MaxPackets\", UintegerValue (0));\r\n client->SetAttribute (\"Interval\", TimeValue (MicroSeconds (100)));\r\n\r\n Ptr<PacketSocketServer> server = CreateObject<PacketSocketServer> ();\r\n server->SetLocal (socketAddr);\r\n c.Get (j)->AddApplication (server);\r\n }\r\n\r\n \/\/ Log Wifi packet receptions\r\n Config::Connect (\"\/NodeList\/*\/$ns3::Node\/ApplicationList\/*\/$ns3::PacketSocketServer\/Rx\", MakeCallback (&SocketRecvStats));\r\n\r\n \/\/ Log LTE packet transmissions\r\n Config::Connect (\"\/NodeList\/*\/DeviceList\/*\/$ns3::LteEnbNetDevice\/ComponentCarrierMap\/*\/LteEnbPhy\/DlSpectrumPhy\/TxStart\", MakeCallback (&LteSpectrumPhyTxTrace));\r\n\r\n\r\n \/\/ Log LTE packet receptions\r\n std::ostringstream oss;\r\n oss << \"\/NodeList\/\" << nNodes+3 << \"\/$ns3::Node\/ApplicationList\/*\/$ns3::PacketSink\/Rx\";\r\n std::string var = oss.str();\r\n Config::Connect (var, MakeCallback (&SinkRecvStats));\r\n\r\n \/\/ Trace Phy Tx start events\r\n Config::Connect (\"\/NodeList\/*\/DeviceList\/*\/$ns3::WifiNetDevice\/Phy\/$ns3::WifiPhy\/PhyTxBegin\", MakeCallback (&PhyTxTrace));\r\n \r\n if (tracing)\r\n {\r\n \/\/ Trace CW evolution\r\n Config::Connect (\"\/NodeList\/*\/DeviceList\/*\/$ns3::WifiNetDevice\/Mac\/$ns3::AdhocWifiMac\/Txop\/CwTrace\", MakeCallback (&CwTrace));\r\n\r\n \/\/ Trace backoff evolution\r\n Config::Connect (\"\/NodeList\/*\/DeviceList\/*\/$ns3::WifiNetDevice\/Mac\/$ns3::AdhocWifiMac\/Txop\/BackoffTrace\", MakeCallback (&BackoffTrace));\r\n\r\n \/\/ Trace packet arrivals to the Wifi device\r\n Config::Connect (\"\/NodeList\/*\/DeviceList\/*\/$ns3::WifiNetDevice\/Mac\/$ns3::AdhocWifiMac\/MacTx\", MakeCallback (&MacTxTrace));\r\n\r\n \/\/ Trace packet receptions\r\n Config::Connect (\"\/NodeList\/*\/$ns3::Node\/ApplicationList\/*\/$ns3::PacketSocketServer\/Rx\", MakeCallback (&SocketRecvTrace));\r\n\r\n \/\/ Trace signal arrivals at node 0\r\n Config::Connect (\"\/NodeList\/0\/DeviceList\/0\/$ns3::WifiNetDevice\/Phy\/$ns3::SpectrumWifiPhy\/SignalArrival\", MakeCallback (&SignalArrivalTrace));\r\n }\r\n Simulator::Schedule (Seconds (5.0), &RestartCalc);\r\n Simulator::Stop (Seconds (duration));\r\n\r\n if (saveAttributeConfig)\r\n {\r\n \/\/ Output config store to txt format\r\n Config::SetDefault (\"ns3::ConfigStore::Filename\", StringValue (\"wifi-11a-lte-dc-attributes.txt\"));\r\n Config::SetDefault (\"ns3::ConfigStore::FileFormat\", StringValue (\"RawText\"));\r\n Config::SetDefault (\"ns3::ConfigStore::Mode\", StringValue (\"Save\"));\r\n ConfigStore outputConfig2;\r\n outputConfig2.ConfigureAttributes ();\r\n std::cout << \"Exiting afer writing wifi-11a-lte-dc-attributes.txt\" << std::endl;\r\n exit (0);\r\n }\r\n\r\n if (progress)\r\n {\r\n Simulator::Schedule (Seconds (progress), &ShowProgress);\r\n }\r\n Simulator::Run ();\r\n Simulator::Destroy ();\r\n if (tracing)\r\n {\r\n signalArrivalTraceFile.flush ();\r\n cwTraceFile.flush ();\r\n backoffTraceFile.flush ();\r\n phyTxTraceFile.flush ();\r\n macTxTraceFile.flush ();\r\n socketRecvTraceFile.flush ();\r\n }\r\n return 0;\r\n}\r\n\r\nint main (int argc, char *argv[])\r\n{\r\n uint32_t verbose = 0;\r\n bool tracing = false;\r\n progress = 10;\r\n double duration = 10;\r\n uint32_t netSize = 2;\r\n \/\/ uint32_t pktSize = 1500; \/\/1500\r\n double delta = 0.001;\r\n uint32_t trials = 3;\r\n uint32_t gridWidth = 10;\r\n double lteDutyCycle = 1;\r\n bool useAbs = false;\r\n Time lteDutyCyclePeriod = MilliSeconds (10);\r\n\r\n double P_col = 0;\r\n\r\n \/\/ disable fragmentation\r\n Config::SetDefault (\"ns3::WifiRemoteStationManager::FragmentationThreshold\", StringValue (\"22000\"));\r\n Config::SetDefault (\"ns3::WifiRemoteStationManager::RtsCtsThreshold\", StringValue (\"22000\"));\r\n \/\/ Disable short retransmission failure (make retransmissions persistent)\r\n Config::SetDefault (\"ns3::WifiRemoteStationManager::MaxSlrc\", UintegerValue (8));\r\n\r\n \/\/ Configure start time of access manager\r\n Config::SetDefault (\"ns3::LteEnbPhy::ChannelAccessManagerStartTime\", TimeValue (Seconds (1)));\r\n\r\n CommandLine cmd;\r\n cmd.AddValue (\"verbose\", \"Show log output (default is 0: no log)\", verbose);\r\n cmd.AddValue (\"useAbs\", \"Use ABS mode of duty cycling (40 ms cycle)\", useAbs);\r\n cmd.AddValue (\"lteDutyCycle\", \"LTE duty cycle fraction of time (0 to 1)\", lteDutyCycle);\r\n cmd.AddValue (\"lteDutyCyclePeriod\", \"LTE duty cycle period\", lteDutyCyclePeriod);\r\n cmd.AddValue (\"tracing\", \"Generate trace files\", tracing);\r\n cmd.AddValue (\"netSize\", \"The maximum network size\", netSize);\r\n cmd.AddValue (\"pktSize\", \"The frame size\", pktSize);\r\n cmd.AddValue (\"trials\", \"The maximal number of runs per network size\", trials);\r\n cmd.AddValue (\"delta\", \"The delta offset in grid topology\", delta);\r\n cmd.AddValue (\"gridWidth\", \"The width of the grid\", gridWidth);\r\n cmd.AddValue (\"duration\", \"Time duration for each trial (seconds)\", duration);\r\n cmd.AddValue (\"showProgress\", \"time interval (sec) for showing execution progress; zero to disable\", progress);\r\n cmd.Parse (argc, argv);\r\n\r\n if (tracing)\r\n {\r\n signalArrivalTraceFile.open (\"wifi-11a-lte-dc-signal-trace.out\");\r\n cwTraceFile.open (\"wifi-11a-lte-dc-cw-trace.out\");\r\n backoffTraceFile.open (\"wifi-11a-lte-dc-backoff-trace.out\");\r\n phyTxTraceFile.open (\"wifi-11a-lte-dc-phy-tx-trace.out\");\r\n macTxTraceFile.open (\"wifi-11a-lte-dc-mac-tx-trace.out\");\r\n socketRecvTraceFile.open (\"wifi-11a-lte-dc-socket-recv-trace.out\");\r\n }\r\n Pcolfile.open (\"OutPutFile.out\");\r\n if (verbose == 1)\r\n {\r\n LogComponentEnable (\"Wifi11aLteDcBasic\", LOG_LEVEL_ALL);\r\n }\r\n else if (verbose == 2)\r\n {\r\n LogComponentEnable (\"Wifi11aLteDcBasic\", LOG_LEVEL_ALL);\r\n LogComponentEnable (\"DcfManager\", LOG_LEVEL_ALL);\r\n LogComponentEnable (\"Txop\", LOG_LEVEL_ALL);\r\n LogComponentEnable (\"QosTxop\", LOG_LEVEL_ALL);\r\n }\r\n else if (verbose == 3)\r\n {\r\n LogComponentEnable (\"Wifi11aLteDcBasic\", LOG_LEVEL_ALL);\r\n WifiHelper h;\r\n h.EnableLogComponents ();\r\n }\r\n\r\n std::stringstream ss;\r\n ss << \"wifi-11a-lte-dc-\" << netSize << \"-p-\" << pktSize << \"-throughput.plt\";\r\n std::ofstream netSizeThroughputPlot (ss.str ().c_str ());\r\n ss.str (\"\");\r\n ss << \"wifi-11a-lte-dc-\" << netSize << \"-p-\" << pktSize << \"-throughput.eps\";\r\n Gnuplot gnuplot = Gnuplot (ss.str ());\r\n\r\n WifiHelper wifi;\r\n wifi.SetStandard (WIFI_PHY_STANDARD_80211a);\r\n\r\n NS_LOG_DEBUG (\"6\");\r\n Experiment experiment;\r\n wifi.SetRemoteStationManager (\"ns3::ConstantRateWifiManager\",\r\n \"DataMode\", StringValue (\"OfdmRate6Mbps\")); \/\/ OfdmRate12Mbps \/\/ OfdmRate54Mbps\r\n\r\n \r\n double mean_t, throughput;\r\n double mean_pcol;\r\n\r\n for (uint32_t p_inc = 50; p_inc <= 1950 ; p_inc += 50)\r\n {\r\n pktSize = 50 + p_inc;\r\n mean_t = 0;\r\n mean_pcol=0;\r\n\r\n for (uint32_t run_index = 1; run_index <= trials; run_index++)\r\n {\r\n\r\n std::fill (wifiBytesReceived.begin (), wifiBytesReceived.end (), 0);\r\n std::fill (wifiPacketsReceived.begin (), wifiPacketsReceived.end (), 0);\r\n std::fill (lteBytesReceived.begin (), lteBytesReceived.end (), 0);\r\n std::fill (ltePacketsReceived.begin (), ltePacketsReceived.end (), 0);\r\n throughput = 0;\r\n\r\n std::cout << \"Trial \" << run_index << \" of \" << trials << \"; 6 Mb\/s for \" << pktSize << \" packetsize \" << std::endl;\r\n if (tracing)\r\n {\r\n cwTraceFile << \"# Trial \" << run_index << \" of \" << trials << \"; 6 Mb\/s for \" << netSize << \" nodes\" << std::endl;\r\n backoffTraceFile << \"# Trial \" << run_index << \" of \" << trials << \"; 6 Mb\/s for \" << netSize << \" nodes\" << std::endl;\r\n phyTxTraceFile << \"# Trial \" << run_index << \" of \" << trials << \"; 6 Mb\/s for \" << netSize << \" nodes\" << std::endl;\r\n macTxTraceFile << \"# Trial \" << run_index << \" of \" << trials << \"; 6 Mb\/s for \" << netSize << \" nodes\" << std::endl;\r\n socketRecvTraceFile << \"# Trial \" << run_index << \" of \" << trials << \"; 6 Mb\/s for \" << netSize << \" nodes\" << std::endl;\r\n }\r\n experiment.Run (wifi, pktSize, netSize, delta, gridWidth, duration, tracing, lteDutyCycle, useAbs, lteDutyCyclePeriod);\r\n double avg;\r\n for (uint32_t k = 0; k < netSize; k++)\r\n {\r\n wifiThroughputPerNode[k] = (double)(wifiBytesReceived[k]* 8) \/ 1000 \/ 1000 \/ 5; \/\/ for 100 seconds\r\n std::cout << \"Node \" << k << \"; wifi throughput \" << wifiThroughputPerNode[k] << std::endl;\r\n throughput += wifiThroughputPerNode[k];\r\n if (wifiPacketsSent[k] > 0)\r\n {\r\n P_col += (wifiPacketsSent[k] - wifiPacketsReceived[(k + 1) % netSize]) \/ wifiPacketsSent[k];\r\n }\r\n std::cout << P_col << std::endl;\r\n avg += P_col;\r\n P_col = 0;\r\n }\r\n \/\/ For network size 'n', the receive sink will be node 'n+3'\r\n \/\/std::cout << \"lte Packets: \" << lteBytesReceived[netSize+3] <<std::endl;\r\n double lteThroughput = (double)(lteBytesReceived[netSize+3]* 8) \/ 1000 \/ 1000 \/ 5 ;\r\n std::cout << \"P collision Avg \" << avg \/ netSize << std::endl;\r\n std::cout << \"Total wifi throughput \" << throughput << std::endl;\r\n std::cout << \"Total LTE throughput \" << lteThroughput << std::endl;\r\n \r\n mean_t += throughput;\r\n mean_pcol += avg \/ netSize;\r\n avg = 0;\r\n }\r\n mean_t = mean_t \/ trials;\r\n mean_pcol = mean_pcol \/ trials;\r\n\r\n Pcolfile << pktSize << \", \" << mean_t << \", \" << mean_pcol<< std::endl;\r\n }\r\n\r\n Pcolfile.close ();\r\n \r\n if (tracing)\r\n {\r\n signalArrivalTraceFile.close ();\r\n cwTraceFile.close ();\r\n backoffTraceFile.close ();\r\n phyTxTraceFile.close ();\r\n macTxTraceFile.close ();\r\n socketRecvTraceFile.close ();\r\n }\r\n return 0;\r\n}\r\n\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"wifi-lte-coexistence.cc: #include “ns3\/core-module.h” #include “ns3\/config-store-module.h” #include “ns3\/mobility-module.h” #include “ns3\/gnuplot.h” #include “ns3\/wifi-module.h” #include “ns3\/lte-module.h” #include “ns3\/network-module.h” #include “ns3\/internet-module.h” #include “ns3\/point-to-point-module.h” #include “ns3\/applications-module.h” #include “ns3\/spectrum-module.h” #include “ns3\/lte-wifi-coexistence-module.h” #include “ns3\/lte-spectrum-value-helper.h” #include <iostream> #include <iomanip> #include <sstream> #include <stdint.h> NS_LOG_COMPONENT_DEFINE (“Wifi11aLteDcBasic”); using namespace ns3; std::ofstream Pcolfile; std::ofstream signalArrivalTraceFile; std::ofstream cwTraceFile; std::ofstream backoffTraceFile; std::ofstream phyTxTraceFile; std::ofstream macTxTraceFile; std::ofstream socketRecvTraceFile; std::vector<uint32_t> … <\/p>\n