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simulation-main.cc
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simulation-main.cc
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/* Include ns3 libraries */
#include "ns3/applications-module.h"
#include "ns3/config-store.h"
#include "ns3/core-module.h"
#include "ns3/internet-module.h"
#include "ns3/ipv4-global-routing-helper.h"
#include "ns3/log.h"
#include "ns3/mobility-module.h"
#include "ns3/network-module.h"
#include "ns3/flow-monitor-module.h"
#include "ns3/nr-helper.h"
#include "ns3/nr-mac-scheduler-tdma-rr.h"
#include "ns3/nr-module.h"
#include "ns3/nr-point-to-point-epc-helper.h"
#include "ns3/point-to-point-helper.h"
#include <ns3/antenna-module.h>
#include <ns3/buildings-helper.h>
#include <ns3/buildings-module.h>
#include <ns3/hybrid-buildings-propagation-loss-model.h>
/* Include systems libraries */
#include <sys/types.h>
#include <unistd.h>
/* Include custom libraries (aux files for the simulation) */
#include "cmdline-colors.h"
#include "simulation-apps.h"
#include "physical-scenarios.h"
using namespace ns3;
/* Global Variables */
auto tic = std::chrono::high_resolution_clock::now(); // Initial time
auto itime = std::chrono::high_resolution_clock::now(); // Initial time 2
double simTime = 2; // in seconds
/* Auxiliary Vars */
const uint32_t SGW_SYS_ID = 0x2D574753;
const uint32_t PGW_SYS_ID = 0x2D574750;
const uint32_t GNB_SYS_ID = 0x2D424E47; // gNb System ID base (every gNb starts from this)
const uint32_t UE_SYS_ID = 0x2D2D4555; // UE System ID base (every UE starts from this)
const uint32_t RH_SYS_ID = 0x2D2D4852; // RH System ID base
/* Noise vars */
// Mean chosen by https://www.qualcomm.com/content/dam/qcomm-martech/dm-assets/documents/5g_nr_millimeter_wave_network_coverage_simulation_studies_for_global_cities.pdf page 4
const double NOISE_MEAN = 9; // Default value is 5
const double NOISE_VAR = 1; // Noise variance
const double NOISE_BOUND = 3; // Noise bound, read NormalDistribution for info about the parameter.
const Time NOISE_T_RES = MilliSeconds(15); // Time to schedule the add noise function
const double SEGMENT_SIZE = 1448.0; // Maximum number of bytes a packet can have
const std::string LOG_FILENAME = "output.log";
/* Trace functions, definitions are at EOF */
static void CwndTracer(Ptr<OutputStreamWrapper> stream, uint32_t oldval, uint32_t newval);
static void RtoTracer(Ptr<OutputStreamWrapper> stream, Time oldval, Time newval);
static void RttTracer(Ptr<OutputStreamWrapper> stream, Time oldval, Time newval);
static void NextTxTracer(Ptr<OutputStreamWrapper> stream, SequenceNumber32 old [[maybe_unused]], SequenceNumber32 nextTx);
static void NextRxTracer(Ptr<OutputStreamWrapper> stream, SequenceNumber32 old [[maybe_unused]], SequenceNumber32 nextRx);
static void InFlightTracer(Ptr<OutputStreamWrapper> stream, uint32_t old [[maybe_unused]], uint32_t inFlight);
static void SsThreshTracer(Ptr<OutputStreamWrapper> stream, uint32_t oldval, uint32_t newval);
static void TraceTcp(uint32_t nodeId, uint32_t socketId);
static void UdpServerTracer(Ptr<OutputStreamWrapper> stream, Ptr<const Packet> p, const Address &srcAdd, const Address &destAdd);
/* Helper functions, definitions are at EOF */
static void InstallTCP2 (Ptr<Node> remoteHost, Ptr<Node> receiver, uint16_t sinkPort, float startTime, float stopTime, float dataRate);
static void CalculatePosition(NodeContainer* ueNodes, NodeContainer* gnbNodes, std::ostream* os);
static void AddRandomNoise(Ptr<NrPhy> ue_phy);
static void PrintNodeAddressInfo(bool ignore_localh);
static void processFlowMonitor(Ptr<FlowMonitor> monitor, Ptr<ns3::FlowClassifier> flowmonHelper, double AppStartTime);
static void UdpServerMakeCallback(uint32_t nodeId);
int main(int argc, char* argv[]) {
#pragma region Variables
double frequency = 27.3e9; // central frequency 28e9
double bandwidth = 400e6; // bandwidth
double mobility = true; // whether to enable mobility default: false
// double speed = 1; // in m/s for walking UT.
bool logging = true; // whether to enable logging from the simulation, another option is by
// exporting the NS_LOG environment variable
bool shadowing = true; // to enable shadowing effect
bool addNoise = true; // To enable/disable AWGN
// double hBS; // base station antenna height in meters
// double hUE; // user antenna height in meters
double txPower = 18; // txPower [dBm] : mmWave antenna in urban area (600cm^2 total) https://www.subtel.gob.cl/antenas1/
uint16_t numerology = 3; // 120 kHz and 125 microseg
std::string scenario = "UMa"; // scenario
BandwidthPartInfo::Scenario scenarioEnum = BandwidthPartInfo::UMa;
double dataRate = 1000; //Mbps
double serverDelay = 0.01; // remote 0.040 ; edge 0.004
double rlcBufferPerc = 100; // x*DBP
double rlcBuffer; // Se calcula más abajo, según serverType
// CQI Probe own variables.
uint8_t cqiHighGain = 2; // Step of CQI probe
Time ProbeCqiDuration = MilliSeconds(20); // miliseconds
Time stepFrequency = MilliSeconds(500); // miliseconds
double blerTarget = 0.1;
int amcAlgorithm = (int)NrAmc::CqiAlgorithm::LENA_DEFAULT;
int phyDistro = (int)PhysicalDistributionOptions::TREES;
// Trace activation
bool NRTrace = true; // whether to enable Trace NR
bool TCPTrace = true; // whether to enable Trace TCP
// RB Info and position
uint16_t gNbNum = 1; // Numbers of RB
double gNbX = 50.0; // X position
double gNbY = 50.0; // Y position
uint16_t gNbD = 80; // Distance between gNb
// UE Info and position
uint16_t ueNumPergNb = 1; // Numbers of User per RB
// double ueDistance = .50; //Distance between UE
// double xUE=30; //Initial X Position UE
// double yUE=10; //Initial Y Position UE
// BUILDING Position
bool enableBuildings = true; //
uint32_t gridWidth = 3 ;//
uint32_t numOfBuildings = 2;
// uint32_t apartmentsX = 1;
// uint32_t nFloors = 10;
double buildX=37.0; // Initial X Position
double buildY=30.0; // Initial Y Position
double buildDx=10; // Distance X between buildings
double buildDy=10; // Distance Y between buildings
double buildLx=8; // X Length
double buildLy=10; // Y Length
std::string serverType = "Remote"; // Transport Protocol
std::string flowType = "UDP"; // Transport Protocol
std::string tcpTypeId = "TcpBbr"; // TCP Type
double AppStartTime = 0.2; // APP start time
#pragma endregion Variables
/* Simulation arguments */
#pragma region SimArguments
CommandLine cmd(__FILE__);
cmd.AddValue("frequency", "The central carrier frequency in Hz.", frequency);
cmd.AddValue("mobility",
"If set to 1 UEs will be mobile, when set to 0 UE will be static. By default, "
"they are mobile.",
mobility);
cmd.AddValue("logging", "If set to 0, log components will be disabled.", logging);
cmd.AddValue("simTime", "Simulation Time (s)", simTime);
cmd.AddValue("bandwidth", "bandwidth in Hz.", bandwidth);
cmd.AddValue("serverType", "Type of Server: Remote or Edge", serverType);
cmd.AddValue("flowType", "Flow Type: UDP or TCP", flowType);
cmd.AddValue("rlcBufferPerc", "Percent RLC Buffer", rlcBufferPerc);
cmd.AddValue("tcpTypeId", "TCP flavor: TcpBbr , TcpNewReno, TcpCubic, TcpVegas, TcpIllinois, TcpYeah, TcpHighSpeed, TcpBic", tcpTypeId);
cmd.AddValue("enableBuildings", "If set to 1, enable Buildings", enableBuildings);
cmd.AddValue("shadowing", "If set to 1, enable Shadowing", shadowing);
cmd.AddValue("cqiHighGain", "Steps of CQI Probe. Means CQI=round(CQI*cqiHighGain)", cqiHighGain);
cmd.AddValue("ProbeCqiDuration", "Duration of the Probe CQI override in s.", ProbeCqiDuration);
cmd.AddValue("stepFrequency", "Time between activations of Probe CQI in s", stepFrequency);
cmd.AddValue("addNoise", "Add normal distributed noise to the simulation", addNoise);
cmd.AddValue("blerTarget", "Set the bler target for the AMC (Default: 0.1)", blerTarget);
cmd.AddValue("amcAlgo", "Choose the algorithm to be used in the amc possible values:\n\t0:Original\n\t1:ProbeCqi\n\t2:NewBlerTarget\n\t3:ExpBlerTarget\n\t4:HybridBlerTarget\nCurrent value: ", amcAlgorithm);
cmd.AddValue("phyDistro", "Physical distribution of the Buildings-UEs-gNbs. Options:\n\t0:Default\n\t1:Trees\n\t2:Indoor Router\nCurrent value: ", phyDistro);
cmd.Parse(argc, argv);
#pragma endregion SimArguments
/********************************************************************************************************************
* LOGS
********************************************************************************************************************/
#pragma region logs
// Redirect logs to output file, clog -> LOG_FILENAME
std::ofstream ofLog(LOG_FILENAME);
auto clog_buff = std::clog.rdbuf();
std::clog.rdbuf(ofLog.rdbuf());
// enable logging
if (logging)
{
LogComponentEnableAll(LOG_PREFIX_TIME);
LogComponentEnable("NrAmc", LOG_DEBUG);
// LogComponentEnable("NrAmc", LOG_ALL);
// LogComponentEnable("BuildingsChannelConditionModel", LOG_ALL);
// LogComponentEnable("NrBearerStatsConnector", LOG_ALL);
// LogComponentEnable("NrHelper", LOG_ALL);
}
#pragma endregion logs
/********************************************************************************************************************
* Servertype, TCP config & settings, scenario definition
********************************************************************************************************************/
#pragma region sv_tcp_scenario
/* AMC Algorithm change */
NrAmc::SetCqiModel((NrAmc::CqiAlgorithm)amcAlgorithm);
NrAmc::Set(cqiHighGain, ProbeCqiDuration, stepFrequency); // To configure the ProbeCQI algorithm
NrAmc::SetBlerTarget(blerTarget);
/* Server type - Distance */
if (serverType == "Remote")
{
serverDelay = 0.04;
}
else
{
serverDelay = 0.004;
}
rlcBuffer = round(dataRate*1e6/8*serverDelay*rlcBufferPerc/100); // Bytes BDP=250Mbps*100ms default: 999999999
/**
* Default values for the simulation. We are progressively removing all
* the instances of SetDefault, but we need it for legacy code (LTE)
*/
Config::SetDefault("ns3::LteRlcUm::MaxTxBufferSize", UintegerValue(rlcBuffer));
// TCP config
// TCP Setting
// attibutes in: https://www.nsnam.org/docs/release/3.27/doxygen/classns3_1_1_tcp_socket.html
uint32_t delAckCount = 1;
std::string queueDisc = "FifoQueueDisc";
queueDisc = std::string("ns3::") + queueDisc;
if (flowType =="TCP"){
Config::SetDefault("ns3::TcpL4Protocol::SocketType", StringValue("ns3::" + tcpTypeId));
Config::SetDefault("ns3::TcpSocket::SndBufSize", UintegerValue(4194304)); // TcpSocket maximum transmit buffer size (bytes). 4194304 = 4MB
Config::SetDefault("ns3::TcpSocket::RcvBufSize", UintegerValue(6291456)); // TcpSocket maximum receive buffer size (bytes). 6291456 = 6MB
Config::SetDefault("ns3::TcpSocket::InitialCwnd", UintegerValue(10)); // TCP initial congestion window size (segments). RFC 5681 = 10
Config::SetDefault("ns3::TcpSocket::SegmentSize", UintegerValue(SEGMENT_SIZE)); // TCP maximum segment size in bytes (may be adjusted based on MTU discovery).
Config::SetDefault("ns3::TcpSocket::TcpNoDelay", BooleanValue(false)); // Set to true to disable Nagle's algorithm
// Config::SetDefault("ns3::TcpSocketBase::MinRto", TimeValue (MilliSeconds (200)));
Config::SetDefault("ns3::TcpSocket::DelAckCount", UintegerValue(delAckCount)); // Number of packets to wait before sending a TCP ack
Config::SetDefault("ns3::TcpSocket::DelAckTimeout", TimeValue (Seconds (.2))); // Timeout value for TCP delayed acks, in seconds. default 0.2 sec
Config::SetDefault("ns3::TcpSocket::DataRetries", UintegerValue(6)); // Number of data retransmission attempts. Default 6
Config::SetDefault("ns3::TcpSocket::PersistTimeout", TimeValue (Seconds (2))); // Number of data retransmission attempts. Default 6
// Config::Set ("/NodeList/*/DeviceList/*/TxQueue/MaxSize", QueueSizeValue(QueueSize ("100p")));
// Config::Set ("/NodeList/*/DeviceList/*/RxQueue/MaxSize", QueueSizeValue(QueueSize ("100p")));
// Config::SetDefault("ns3::DropTailQueue<Packet>::MaxSize", QueueSizeValue(QueueSize ("100p"))); //A FIFO packet queue that drops tail-end packets on overflow
// Config::SetDefault(queueDisc + "::MaxSize", QueueSizeValue(QueueSize("100p"))); //100p Simple queue disc implementing the FIFO (First-In First-Out) policy
// Config::SetDefault("ns3::TcpL4Protocol::RecoveryType",
// TypeIdValue(TypeId::LookupByName("ns3::TcpClassicRecovery"))); //set the congestion window value to the slow start threshold and maintain it at such value until we are fully recovered
// Config::SetDefault ("ns3::RttEstimator::InitialEstimation", TimeValue (MilliSeconds (10)));
if( tcpTypeId=="TcpCubic"){
Config::SetDefault("ns3::TcpCubic::Beta", DoubleValue(0.7)); // Beta for multiplicative decrease. Default 0.7
}
else if( tcpTypeId=="TcpBic"){
Config::SetDefault("ns3::TcpBic::Beta", DoubleValue(1.5)); // Beta for multiplicative decrease. Default 0.8
Config::SetDefault("ns3::TcpBic::HyStart", BooleanValue(false)); // Enable (true) or disable (false) hybrid slow start algorithm. Default true
}
}
else
{
// TCPTrace=false;
}
#pragma endregion sv_tcp_scenario
/********************************************************************************************************************
* Create base stations and mobile terminal
* Define positions, mobility types and speed of UE and gNB.
********************************************************************************************************************/
#pragma region UE_gNB
if (phyDistro == (int)PhysicalDistributionOptions::IND_ROUTER)
{
ueNumPergNb = 2;
}
NodeContainer gnbNodes;
NodeContainer ueNodes;
gnbNodes.Create(gNbNum, GNB_SYS_ID);
ueNodes.Create(gNbNum * ueNumPergNb, UE_SYS_ID);
switch ((PhysicalDistributionOptions)phyDistro)
{
case PhysicalDistributionOptions::IND_ROUTER:
IndoorRouterPhysicalDistribution(gnbNodes, ueNodes);
break;
case PhysicalDistributionOptions::TREES:
TreePhysicalDistribution(gnbNodes, ueNodes, mobility);
break;
case PhysicalDistributionOptions::DEFAULT:
default:
DefaultPhysicalDistribution(gnbNodes, ueNodes, mobility);
break;
}
/********************************************************************************************************************
* NR Helpers and Stuff
********************************************************************************************************************/
#pragma region NR_Config
/**
* Setup the NR module. We create the various helpers needed for the
* NR simulation:
* - EpcHelper, which will setup the core network
* - IdealBeamformingHelper, which takes care of the beamforming part
* - NrHelper, which takes care of creating and connecting the various
* part of the NR stack
*/
Ptr<NrPointToPointEpcHelper> epcHelper = CreateObject<NrPointToPointEpcHelper>();
Ptr<IdealBeamformingHelper> idealBeamformingHelper = CreateObject<IdealBeamformingHelper>();
Ptr<NrHelper> nrHelper = CreateObject<NrHelper>();
// Configure ideal beamforming method
idealBeamformingHelper->SetAttribute("BeamformingMethod",
TypeIdValue(DirectPathBeamforming::GetTypeId()));// dir at gNB, dir at UE
nrHelper->SetBeamformingHelper(idealBeamformingHelper);
nrHelper->SetEpcHelper(epcHelper);
epcHelper->SetAttribute("S1uLinkDelay", TimeValue(MilliSeconds(0))); // Core latency
/**
* Spectrum configuration. We create a single operational band and configure the scenario.
*/
// Setup scenario depending if there are buildings or not
if (enableBuildings)
{
scenarioEnum = BandwidthPartInfo::UMa_Buildings;
}
else
{
scenarioEnum = BandwidthPartInfo::UMa;
}
CcBwpCreator ccBwpCreator;
const uint8_t numCcPerBand = 1; // in this example we have a single band, and that band is
// composed of a single component carrier
/** Create the configuration for the CcBwpHelper. SimpleOperationBandConf creates
* a single BWP per CC and a single BWP in CC.
*
* Hence, the configured spectrum is:
*
* |---------------Band---------------|
* |---------------CC-----------------|
* |---------------BWP----------------|
*/
CcBwpCreator::SimpleOperationBandConf bandConf(frequency,
bandwidth,
numCcPerBand,
scenarioEnum);
OperationBandInfo band = ccBwpCreator.CreateOperationBandContiguousCc(bandConf);
// Initialize channel and pathloss, plus other things inside band.
Config::SetDefault("ns3::ThreeGppChannelModel::UpdatePeriod", TimeValue(MilliSeconds(0)));
std::string errorModel = "ns3::NrEesmIrT1"; //ns3::NrEesmCcT1, ns3::NrEesmCcT2, ns3::NrEesmIrT1, ns3::NrEesmIrT2, ns3::NrLteMiErrorModel
//we need activate? : "ns3::BuildingsChannelConditionModel"
nrHelper->SetUlErrorModel(errorModel);
nrHelper->SetDlErrorModel(errorModel);
// std::string pathlossModel="ns3::ThreeGppUmaPropagationLossModel";
nrHelper->SetChannelConditionModelAttribute("UpdatePeriod", TimeValue(MilliSeconds(0)));
nrHelper->SetPathlossAttribute("ShadowingEnabled", BooleanValue(shadowing)); // false: allow see effect of path loss only
Ptr<HybridBuildingsPropagationLossModel> propagationLossModel =
CreateObject<HybridBuildingsPropagationLossModel>();
// cancel shadowing effect set 0.0
propagationLossModel->SetAttribute("ShadowSigmaOutdoor", DoubleValue(7.0)); // Standard deviation of the normal distribution used for calculate the shadowing for outdoor nodes
propagationLossModel->SetAttribute("ShadowSigmaIndoor", DoubleValue(8.0)); // Standard deviation of the normal distribution used for calculate the shadowing for indoor nodes
propagationLossModel->SetAttribute("ShadowSigmaExtWalls", DoubleValue(5.0)); // Standard deviation of the normal distribution used for calculate the shadowing due to ext walls
propagationLossModel->SetAttribute("InternalWallLoss", DoubleValue(5.7)); // Additional loss for each internal wall [dB]
// Initialize channel and pathloss, plus other things inside band.
nrHelper->InitializeOperationBand(&band);
BandwidthPartInfoPtrVector allBwps = CcBwpCreator::GetAllBwps({band});
// Configure scheduler
nrHelper->SetSchedulerTypeId(NrMacSchedulerTdmaRR::GetTypeId());
// Antennas for the UEs
nrHelper->SetUeAntennaAttribute("NumRows", UintegerValue(2));
nrHelper->SetUeAntennaAttribute("NumColumns", UintegerValue(4));
nrHelper->SetUeAntennaAttribute("AntennaElement",
PointerValue(CreateObject<IsotropicAntennaModel>()));
// Antennas for the gNbs
nrHelper->SetGnbAntennaAttribute("NumRows", UintegerValue(8));
nrHelper->SetGnbAntennaAttribute("NumColumns", UintegerValue(8));
nrHelper->SetGnbAntennaAttribute("AntennaElement",
PointerValue(CreateObject<IsotropicAntennaModel>()));
nrHelper->Initialize(); // > Dont know if needed, but it may help
// install nr net devices
NetDeviceContainer enbNetDev = nrHelper->InstallGnbDevice(gnbNodes, allBwps);
NetDeviceContainer ueNetDev = nrHelper->InstallUeDevice(ueNodes, allBwps);
int64_t randomStream = 1;
randomStream += nrHelper->AssignStreams(enbNetDev, randomStream);
randomStream += nrHelper->AssignStreams(ueNetDev, randomStream);
for (uint32_t u = 0; u < gnbNodes.GetN(); ++u)
{
nrHelper->GetGnbPhy(enbNetDev.Get(u), 0)->SetTxPower(txPower);
nrHelper->GetGnbPhy(enbNetDev.Get(u), 0)
->SetAttribute("Numerology", UintegerValue(numerology));
}
if (addNoise)
{
for (uint32_t u = 0; u < ueNodes.GetN(); ++u)
{
// Get the physical layer and add noise whenerver DlDataSinr is executed
Ptr<NrUePhy> uePhy = nrHelper->GetUePhy(ueNetDev.Get(u), 0);
uePhy->SetNoiseFigure(NOISE_MEAN);
for (int i = 0; i < (Seconds(simTime) - Seconds(0.2)) / NOISE_T_RES; i++)
{
Simulator::Schedule(NOISE_T_RES * i + Seconds(0.1), &AddRandomNoise, uePhy);
}
}
}
// Another way to add error to the receiver
/*
Ptr<RateErrorModel> em = CreateObject<RateErrorModel>();
em->SetAttribute("ErrorRate", DoubleValue(0.00001));
devices.Get(1)->SetAttribute("ReceiveErrorModel", PointerValue(em));
*/
// When all the configuration is done, explicitly call UpdateConfig ()
for (auto it = enbNetDev.Begin(); it != enbNetDev.End(); ++it)
{
DynamicCast<NrGnbNetDevice>(*it)->UpdateConfig();
}
for (auto it = ueNetDev.Begin(); it != ueNetDev.End(); ++it)
{
DynamicCast<NrUeNetDevice>(*it)->UpdateConfig();
}
#pragma endregion NR_Config
/********************************************************************************************************************
* Setup and install IP, internet and remote servers
********************************************************************************************************************/
#pragma region internet
// Create the internet and install the IP stack on the UEs
// Get SGW/PGW and create a single RemoteHost
Ptr<Node> pgw = epcHelper->GetPgwNode();
epcHelper->GetSgwNode()->SetAttribute("SystemId", UintegerValue(SGW_SYS_ID)); // Set a Sys Id for the SGW Node
pgw->SetAttribute("SystemId", UintegerValue(PGW_SYS_ID));
NodeContainer remoteHostContainer;
remoteHostContainer.Create(1, RH_SYS_ID);
Ptr<Node> remoteHost = remoteHostContainer.Get(0);
InternetStackHelper internet;
internet.Install(remoteHostContainer);
// connect a remoteHost to pgw. Setup routing too
PointToPointHelper p2ph;
p2ph.SetDeviceAttribute("DataRate", DataRateValue(DataRate("100Gb/s")));
p2ph.SetDeviceAttribute("Mtu", UintegerValue(1500)); //2500
p2ph.SetChannelAttribute("Delay", TimeValue(Seconds(serverDelay)));
NetDeviceContainer internetDevices = p2ph.Install(pgw, remoteHost);
Ipv4AddressHelper ipv4h;
ipv4h.SetBase("1.0.0.0", "255.0.0.0");
Ipv4InterfaceContainer internetIpIfaces = ipv4h.Assign(internetDevices);
Ipv4StaticRoutingHelper ipv4RoutingHelper;
Ptr<Ipv4StaticRouting> remoteHostStaticRouting =
ipv4RoutingHelper.GetStaticRouting(remoteHost->GetObject<Ipv4>());
remoteHostStaticRouting->AddNetworkRouteTo(Ipv4Address("7.0.0.0"), Ipv4Mask("255.0.0.0"), 1);
internet.Install(ueNodes);
Ipv4InterfaceContainer ueIpIface;
ueIpIface = epcHelper->AssignUeIpv4Address(NetDeviceContainer(ueNetDev));
// assign IP address to UEs
for (uint32_t u = 0; u < ueNodes.GetN(); ++u)
{
Ptr<Node> ueNode = ueNodes.Get(u);
// Set the default gateway for the UE
Ptr<Ipv4StaticRouting> ueStaticRouting =
ipv4RoutingHelper.GetStaticRouting(ueNode->GetObject<Ipv4>());
ueStaticRouting->SetDefaultRoute(epcHelper->GetUeDefaultGatewayAddress(), 1);
}
// attach UEs to the closest eNB
nrHelper->AttachToClosestEnb(ueNetDev, enbNetDev);
// Flow type properties and setup
if ( flowType == "UDP")
{
std::cout << "App:" << flowType << std::endl;
uint16_t dlPort = 1234;
double interval = SEGMENT_SIZE*8/dataRate; // MicroSeconds
// install downlink applications
ApplicationContainer clientApps;
ApplicationContainer serverApps;
for (uint32_t u = 0; u < ueNodes.GetN(); ++u)
{
UdpServerHelper dlPacketSinkHelper(dlPort);
serverApps.Add(dlPacketSinkHelper.Install(ueNodes.Get(u)));
UdpServerMakeCallback(ueNodes.Get(u)->GetId());
UdpClientHelper dlClient(ueIpIface.GetAddress(u), dlPort);
dlClient.SetAttribute("Interval", TimeValue(MicroSeconds(interval)));
dlClient.SetAttribute("MaxPackets", UintegerValue(0xFFFFFFFF));
dlClient.SetAttribute("PacketSize", UintegerValue(SEGMENT_SIZE));
clientApps.Add(dlClient.Install(remoteHost));
}
// start server and client apps
serverApps.Start(Seconds(AppStartTime));
clientApps.Start(Seconds(AppStartTime));
serverApps.Stop(Seconds(simTime));
clientApps.Stop(Seconds(simTime - AppStartTime));
}
else if ( flowType == "TCP")
{
std::cout << TXT_CYAN << "Install App: " << flowType << " " << tcpTypeId << TXT_CLEAR << std::endl;
uint16_t sinkPort = 8080;
for (uint32_t u = 0; u < ueNodes.GetN(); ++u)
{
//firstRto[u + 1] = true;
auto start = AppStartTime + 0.01 * u;
auto end = std::max (start + 1., simTime - start);
// InstallTCP (remoteHostContainer.Get (0), ueNodes.Get (u), sinkPort++, start, end);
InstallTCP2 (remoteHostContainer.Get (0), ueNodes.Get (u), sinkPort++, start, end, dataRate);
std::cout << TXT_CYAN <<
"Install TCP between nodes: " << std::to_string(remoteHostContainer.Get (0)->GetId()) << "<->"<< std::to_string(ueNodes.Get (u)->GetId()) <<
TXT_CLEAR << std::endl;
// Hook TRACE SOURCE after application starts
// this work because u is identical to socketid i this case
Simulator::Schedule(Seconds(AppStartTime + 0.01 *ueNodes.GetN()) ,
&TraceTcp, remoteHostContainer.Get (0)->GetId(), u);
}
}
#pragma endregion internet
/********************************************************************************************************************
* Trace and file generation
********************************************************************************************************************/
#pragma region trace_n_files
// enable the traces provided by the nr module
if (NRTrace)
{
nrHelper->EnableTraces();
}
// All tcp trace
if(TCPTrace){
std::ofstream asciiTCP;
Ptr<OutputStreamWrapper> ascii_wrap;
asciiTCP.open("tcp-all-ascii.txt");
ascii_wrap = new OutputStreamWrapper("tcp-all-ascii.txt", std::ios::out);
internet.EnableAsciiIpv4All(ascii_wrap);
// p2ph.EnablePcapAll("mypcapfile", true);
}
// Calculate the node positions
std::string logMFile="mobilityPosition.txt";
std::ofstream mymcf;
mymcf.open(logMFile);
mymcf << "Time\t" << "UE\t" << "x\t" << "y\t" << "D0" << std::endl;
Simulator::Schedule(MilliSeconds(100), &CalculatePosition, &ueNodes, &gnbNodes, &mymcf);
//
// generate graph.ini
//
std::string iniFile="graph.ini";
std::ofstream inif;
inif.open(iniFile);
inif << "[general]" << std::endl;
inif << "resamplePeriod = 100" << std::endl;
inif << "simTime = " << simTime << std::endl;
inif << "AppStartTime = " << AppStartTime << std::endl;
inif << "NRTrace = " << NRTrace << std::endl;
inif << "TCPTrace = " << TCPTrace << std::endl;
inif << "flowType = " << flowType << std::endl;
inif << "tcpTypeId = " << tcpTypeId << std::endl;
inif << "frequency = " << frequency << std::endl;
inif << "bandwidth = " << bandwidth << std::endl;
inif << "serverID = " << (int)(ueNumPergNb+gNbNum+3) << std::endl;
inif << "UENum = " << (int)(ueNumPergNb) << std::endl;
inif << "SegmentSize = " << SEGMENT_SIZE << std::endl;
inif << "rlcBuffer = " << rlcBuffer << std::endl;
inif << "rlcBufferPerc = " << rlcBufferPerc << std::endl;
inif << "serverType = " << serverType << std::endl;
inif << "dataRate = " << dataRate << std::endl;
inif << "amcAlgorithm = " << +amcAlgorithm << std::endl;
inif << "cqiHighGain = " << +cqiHighGain << std::endl;
inif << "ProbeCqiDuration = " << ProbeCqiDuration.GetSeconds()*1000 << " ms" << std::endl;
inif << "stepFrequency = " << stepFrequency.GetSeconds()*1000 << " ms" << std::endl;
inif << "addNoise = " << addNoise << std::endl;
inif << "simlabel = " << "A" << amcAlgorithm << "S" << phyDistro << std::endl;
inif << std::endl;
inif << "[gNb]" << std::endl;
inif << "gNbNum = " << gNbNum << std::endl;
inif << "gNbX = " << gNbX << std::endl;
inif << "gNbY = " << gNbY << std::endl;
inif << "gNbD = " << gNbD << std::endl;
inif << std::endl;
inif << "[building]" << std::endl;
inif << "enableBuildings = " << enableBuildings << std::endl;
inif << "gridWidth = " << gridWidth << std::endl;
inif << "buildN = " << numOfBuildings << std::endl;
inif << "buildX = " << buildX << std::endl;
inif << "buildY = " << buildY << std::endl;
inif << "buildDx = " << buildDx << std::endl;
inif << "buildDy = " << buildDy << std::endl;
inif << "buildLx = " << buildLx << std::endl;
inif << "buildLy = " << buildLy << std::endl;
inif.close();
PrintNodeAddressInfo(true);
#pragma endregion trace_n_files
FlowMonitorHelper flowmonHelper;
NodeContainer endpointNodes;
endpointNodes.Add(remoteHost);
endpointNodes.Add(ueNodes);
Ptr<ns3::FlowMonitor> monitor = flowmonHelper.Install(endpointNodes);
monitor->SetAttribute("DelayBinWidth", DoubleValue(0.001));
monitor->SetAttribute("JitterBinWidth", DoubleValue(0.001));
monitor->SetAttribute("PacketSizeBinWidth", DoubleValue(20));
// /* REM HELPER, uncomment for use */
// Ptr<NrRadioEnvironmentMapHelper> remHelper = CreateObject<NrRadioEnvironmentMapHelper>();
// remHelper->SetMinX(0);
// remHelper->SetMaxX(40);
// remHelper->SetResX(40);
// remHelper->SetMinY(0);
// remHelper->SetMaxY(170);
// remHelper->SetResY(170);
// if (phyDistro == 1)
// remHelper->SetZ(1.5);
// else if (phyDistro == 2)
// remHelper->SetZ(25.5);
// remHelper->SetSimTag("rem");
// remHelper->SetRemMode(NrRadioEnvironmentMapHelper::COVERAGE_AREA);
// remHelper->CreateRem(enbNetDev.Get(0), ueNetDev.Get(0), 0);
Simulator::Stop(Seconds(simTime));
Simulator::Run();
processFlowMonitor(monitor, flowmonHelper.GetClassifier(), AppStartTime);
Simulator::Destroy();
std::clog.rdbuf(clog_buff); // Redirect clog to original buffer
std::cout << "\nThe End" << std::endl;
auto toc = std::chrono::high_resolution_clock::now();
std::cout << "Total Time: " << "\033[1;35m" << 1.e-9*std::chrono::duration_cast<std::chrono::nanoseconds>(toc-itime).count() << "\033[0m"<< std::endl;
return 0;
};
static void
processFlowMonitor(Ptr<FlowMonitor> monitor, Ptr<ns3::FlowClassifier> flowClassifier, double AppStartTime)
{
// Print per-flow statistics
monitor->CheckForLostPackets();
Ptr<Ipv4FlowClassifier> classifier =
DynamicCast<Ipv4FlowClassifier>(flowClassifier);
FlowMonitor::FlowStatsContainer stats = monitor->GetFlowStats();
double averageFlowThroughput = 0.0;
double averageFlowDelay = 0.0;
std::ofstream outFile;
std::string filename = "FlowOutput.txt";
outFile.open(filename.c_str(), std::ofstream::out | std::ofstream::trunc);
if (!outFile.is_open())
{
std::cerr << "Can't open file " << filename << std::endl;
return;
}
outFile.setf(std::ios_base::fixed);
for (std::map<FlowId, FlowMonitor::FlowStats>::const_iterator i = stats.begin();
i != stats.end();
++i)
{
Ipv4FlowClassifier::FiveTuple t = classifier->FindFlow(i->first);
std::stringstream protoStream;
protoStream << (uint16_t)t.protocol;
if (t.protocol == 6)
{
protoStream.str("TCP");
}
if (t.protocol == 17)
{
protoStream.str("UDP");
}
outFile << "Flow " << i->first << " (" << t.sourceAddress << ":" << t.sourcePort << " -> "
<< t.destinationAddress << ":" << t.destinationPort << ") proto "
<< protoStream.str() << "\n";
outFile << " Tx Packets: " << i->second.txPackets << "\n";
outFile << " Tx Bytes: " << i->second.txBytes << "\n";
outFile << " TxOffered: "
<< i->second.txBytes * 8.0 / (simTime - AppStartTime) / 1000 / 1000 << " Mbps\n";
outFile << " Rx Bytes: " << i->second.rxBytes << "\n";
if (i->second.rxPackets > 0)
{
// Measure the duration of the flow from receiver's perspective
// double rxDuration = i->second.timeLastRxPacket.GetSeconds () -
// i->second.timeFirstTxPacket.GetSeconds ();
double rxDuration = (simTime - AppStartTime);
averageFlowThroughput += i->second.rxBytes * 8.0 / rxDuration / 1000 / 1000;
averageFlowDelay += 1000 * i->second.delaySum.GetSeconds() / i->second.rxPackets;
outFile << " Throughput: " << i->second.rxBytes * 8.0 / rxDuration / 1000 / 1000
<< " Mbps\n";
outFile << " Mean delay: "
<< 1000 * i->second.delaySum.GetSeconds() / i->second.rxPackets << " ms\n";
// outFile << " Mean upt: " << i->second.uptSum / i->second.rxPackets / 1000/1000 << "
// Mbps \n";
outFile << " Mean jitter: "
<< 1000 * i->second.jitterSum.GetSeconds() / i->second.rxPackets << " ms\n";
}
else
{
outFile << " Throughput: 0 Mbps\n";
outFile << " Mean delay: 0 ms\n";
outFile << " Mean jitter: 0 ms\n";
}
outFile << " Rx Packets: " << i->second.rxPackets << "\n";
outFile << " Lost Packets: " << (i->second.txPackets - i->second.rxPackets) << "\n";
}
outFile << "\n\n Mean flow throughput: " << averageFlowThroughput / stats.size() << "\n";
outFile << " Mean flow delay: " << averageFlowDelay / stats.size() << "\n";
outFile.close();
}
/********************************************************************************************************************
* Trace and util functions (Own)
********************************************************************************************************************/
#pragma region trace_n_utils_functions
static void
UdpServerTracer(Ptr<OutputStreamWrapper> stream, Ptr<const Packet> p, const Address &srcAdd, const Address &destAdd)
{
SeqTsHeader seqTs;
p->Copy()->RemoveHeader(seqTs);
*stream->GetStream() << Simulator::Now().GetNanoSeconds() / (double)1e9
<< "\t" << p->GetSize()
<< "\t" << InetSocketAddress::ConvertFrom(srcAdd).GetIpv4()
<< "\t" << seqTs.GetSeq()
<< "\t" << (Simulator::Now() - seqTs.GetTs()).GetNanoSeconds() / (double)1e9
<< std::endl;
}
static void
UdpServerMakeCallback(uint32_t nodeId)
{
AsciiTraceHelper asciiUdpServer;
Ptr<OutputStreamWrapper> udpServerStream = asciiUdpServer.CreateFileStream("UdpRecv_Node"
+ std::to_string(nodeId) + ".txt");
*udpServerStream->GetStream() << "Time (s)" << "\tPacket Size"
<< "\tSource Address" << "\tPacket Sequence"
<< "\tDelay" << std::endl;
Config::ConnectWithoutContext("/NodeList/" + std::to_string(nodeId)
+ "/ApplicationList/0/$ns3::UdpServer/RxWithAddresses",
MakeBoundCallback(&UdpServerTracer, udpServerStream));
}
/**
* CWND tracer.
*
* \param context The context.
* \param oldval Old value.
* \param newval New value.
*/
static void
CwndTracer(Ptr<OutputStreamWrapper> stream, uint32_t oldval, uint32_t newval)
{
//*stream->GetStream() << Simulator::Now().GetSeconds() << " " << newval / SegmentSize << std::endl;
*stream->GetStream() << Simulator::Now().GetSeconds() << "\t" << oldval << "\t" << newval << std::endl;
}
/**
* RTO tracer.
*
* \param context The context.
* \param oldval Old value.
* \param newval New value.
*/
static void
RtoTracer(Ptr<OutputStreamWrapper> stream, Time oldval, Time newval)
{
*stream->GetStream() << Simulator::Now().GetSeconds() << "\t" << (float) oldval.GetSeconds()<< "\t" << (float) newval.GetSeconds() << std::endl;
}
/**
* RTT tracer.
*
* \param context The context.
* \param oldval Old value.
* \param newval New value.
*/
static void
RttTracer(Ptr<OutputStreamWrapper> stream, Time oldval, Time newval)
{
*stream->GetStream() << Simulator::Now().GetSeconds() << "\t" << (float) oldval.GetSeconds()<< "\t" << (float) newval.GetSeconds() << std::endl;
}
/**
* Next TX tracer.
*
* \param context The context.
* \param old Old sequence number.
* \param nextTx Next sequence number.
*/
static void
NextTxTracer(Ptr<OutputStreamWrapper> stream, SequenceNumber32 old [[maybe_unused]], SequenceNumber32 nextTx)
{
*stream->GetStream() << Simulator::Now().GetSeconds() << "\t" << old<< "\t" << nextTx << std::endl;
}
/**
* Next RX tracer.
*
* \param context The context.
* \param old Old sequence number.
* \param nextRx Next sequence number.
*/
static void
NextRxTracer(Ptr<OutputStreamWrapper> stream, SequenceNumber32 old [[maybe_unused]], SequenceNumber32 nextRx)
{
*stream->GetStream() << Simulator::Now().GetSeconds() << "\t" << old<< "\t" << nextRx << std::endl;
}
/**
* In-flight tracer.
*
* \param context The context.
* \param old Old value.
* \param inFlight In flight value.
*/
static void
InFlightTracer(Ptr<OutputStreamWrapper> stream, uint32_t old [[maybe_unused]], uint32_t inFlight)
{
*stream->GetStream() << Simulator::Now().GetSeconds() << "\t" << old<< "\t" << inFlight << std::endl;
}
/**
* Slow start threshold tracer.
*
* \param context The context.
* \param oldval Old value.
* \param newval New value.
*/
static void
SsThreshTracer(Ptr<OutputStreamWrapper> stream, uint32_t oldval, uint32_t newval)
{
*stream->GetStream() << Simulator::Now().GetSeconds() << "\t" << oldval<< "\t" << newval << std::endl;
}
/**
* Función para imprimir en pantalla info del nodo y el socket, luego guarda en archivos txt info pertinente a TCP L4.
* Guarda:
* - CWND
* - RTO
* - RTT
* - NextTxSequence
* - NextRxSequence
* - BytesInFlight
* - SS Threshold
*/
static void
TraceTcp(uint32_t nodeId, uint32_t socketId)
{
std::cout << "\r\e[K" << TXT_CYAN << "Trace TCP: " << nodeId << "<->" << socketId << " at: "<<
1.e-9*std::chrono::duration_cast<std::chrono::nanoseconds>(tic-itime).count()<< TXT_CLEAR << std::endl;
// Init Congestion Window Tracer
AsciiTraceHelper asciicwnd;
Ptr<OutputStreamWrapper> stream = asciicwnd.CreateFileStream( "tcp-cwnd-"
+ std::to_string(nodeId) +"-"+std::to_string(socketId)+".txt");
*stream->GetStream() << "Time" << "\t" << "oldval" << "\t" << "newval" << std::endl;
Config::ConnectWithoutContext("/NodeList/" + std::to_string(nodeId) +
"/$ns3::TcpL4Protocol/SocketList/" +
std::to_string(socketId) + "/CongestionWindow",
MakeBoundCallback(&CwndTracer, stream));
// Init Congestion RTO
AsciiTraceHelper asciirto;
Ptr<OutputStreamWrapper> rtoStream = asciirto.CreateFileStream("tcp-rto-"
+ std::to_string(nodeId) +"-"+std::to_string(socketId)+".txt");
*rtoStream->GetStream() << "Time" << "\t" << "oldval" << "\t" << "newval" << std::endl;
Config::ConnectWithoutContext("/NodeList/" + std::to_string(nodeId) +
"/$ns3::TcpL4Protocol/SocketList/" +
std::to_string(socketId) + "/RTO",
MakeBoundCallback(&RtoTracer,rtoStream));
// Init Congestion RTT
AsciiTraceHelper asciirtt;
Ptr<OutputStreamWrapper> rttStream = asciirtt.CreateFileStream("tcp-rtt-"
+ std::to_string(nodeId) +"-"+std::to_string(socketId)+".txt");
*rttStream->GetStream() << "Time" << "\t" << "oldval" << "\t" << "newval" << std::endl;
Config::ConnectWithoutContext("/NodeList/" + std::to_string(nodeId) +
"/$ns3::TcpL4Protocol/SocketList/" +
std::to_string(socketId) + "/RTT",
MakeBoundCallback(&RttTracer,rttStream));
// Init Congestion NextTxTracer
AsciiTraceHelper asciinexttx;
Ptr<OutputStreamWrapper> nexttxStream = asciinexttx.CreateFileStream("tcp-nexttx-"
+ std::to_string(nodeId) +"-"+std::to_string(socketId)+".txt");
*nexttxStream->GetStream() << "Time" << "\t" << "oldval" << "\t" << "newval" << std::endl;
Config::ConnectWithoutContext("/NodeList/" + std::to_string(nodeId) +
"/$ns3::TcpL4Protocol/SocketList/" +
std::to_string(socketId) + "/NextTxSequence",
MakeBoundCallback(&NextTxTracer,nexttxStream));
// Init Congestion NextRxTracer
AsciiTraceHelper asciinextrx;
Ptr<OutputStreamWrapper> nextrxStream = asciinextrx.CreateFileStream("tcp-nextrx-"
+ std::to_string(nodeId) +"-"+std::to_string(socketId)+".txt");
*nextrxStream->GetStream() << "Time" << "\t" << "oldval" << "\t" << "newval" << std::endl;
Config::ConnectWithoutContext("/NodeList/" + std::to_string(nodeId) +
"/$ns3::TcpL4Protocol/SocketList/" +
std::to_string(socketId) + "/RxBuffer/NextRxSequence",
MakeBoundCallback(&NextRxTracer,nextrxStream));
// Init Congestion InFlightTracer
AsciiTraceHelper asciiinflight;
Ptr<OutputStreamWrapper> inflightStream = asciiinflight.CreateFileStream("tcp-inflight-"
+ std::to_string(nodeId) +"-"+std::to_string(socketId)+".txt");
*inflightStream->GetStream() << "Time" << "\t" << "oldval" << "\t" << "newval" << std::endl;
Config::ConnectWithoutContext("/NodeList/" + std::to_string(nodeId) +
"/$ns3::TcpL4Protocol/SocketList/" +
std::to_string(socketId) + "/BytesInFlight",
MakeBoundCallback(&InFlightTracer,inflightStream));
// Init Congestion SsThreshTracer
AsciiTraceHelper asciissth;
Ptr<OutputStreamWrapper> ssthStream = asciissth.CreateFileStream("tcp-ssth-"
+ std::to_string(nodeId) +"-"+std::to_string(socketId)+".txt");
*ssthStream->GetStream() << "Time" << "\t" << "oldval" << "\t" << "newval" << std::endl;
Config::ConnectWithoutContext("/NodeList/" + std::to_string(nodeId) +
"/$ns3::TcpL4Protocol/SocketList/" +
std::to_string(socketId) + "/SlowStartThreshold",
MakeBoundCallback(&SsThreshTracer,ssthStream));
}
/**
* InstallTCP2
* Instala la aplicación "MyApp" en los nodos remoteHost, receiver.
*/
static void InstallTCP2 (Ptr<Node> remoteHost,
Ptr<Node> receiver,
uint16_t sinkPort,
float startTime,
float stopTime, float dataRate)
{
//Address sinkAddress (InetSocketAddress (ueIpIface.GetAddress (0), sinkPort));
Address sinkAddress (InetSocketAddress (receiver->GetObject<Ipv4> ()->GetAddress (1,0).GetLocal (), sinkPort));