sat-arq-fwd-example.cc

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2014 Magister Solutions
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Jani Puttonen <jani.puttonen@magister.fi>
 *
 */
 
#include "ns3/applications-module.h"
#include "ns3/config-store-module.h"
#include "ns3/core-module.h"
#include "ns3/internet-module.h"
#include "ns3/network-module.h"
#include "ns3/satellite-module.h"
#include "ns3/traffic-module.h"
 
using namespace ns3;
 
NS_LOG_COMPONENT_DEFINE("sat-arq-fwd-example");
 
int
main(int argc, char* argv[])
{
    uint32_t beamId(1);
    uint32_t endUsersPerUt(3);
    uint32_t utsPerBeam(3);
    uint32_t packetSize(128);
    Time interval(Seconds(0.3));
    Time simLength(Seconds(100.0));
    Time appStartTime = Seconds(0.1);
 
    // enable info logs
    // LogComponentEnable ("CbrApplication", LOG_LEVEL_INFO);
    // LogComponentEnable ("PacketSink", LOG_LEVEL_INFO);
    // LogComponentEnable ("sat-arq-fwd-example", LOG_LEVEL_INFO);
 
    Config::SetDefault("ns3::SatEnvVariables::EnableSimulationOutputOverwrite", BooleanValue(true));
 
    Config::SetDefault("ns3::SatHelper::PacketTraceEnabled", BooleanValue(true));
    Ptr<SimulationHelper> simulationHelper = CreateObject<SimulationHelper>("example-arq-fwd");
 
    // read command line parameters given by user
    CommandLine cmd;
    cmd.AddValue("endUsersPerUt", "Number of end users per UT", endUsersPerUt);
    cmd.AddValue("utsPerBeam", "Number of UTs per spot-beam", utsPerBeam);
    simulationHelper->AddDefaultUiArguments(cmd);
    cmd.Parse(argc, argv);
 
    simulationHelper->SetDefaultValues();
    simulationHelper->SetUtCountPerBeam(utsPerBeam);
    simulationHelper->SetUserCountPerUt(endUsersPerUt);
    simulationHelper->SetSimulationTime(simLength);
 
    std::stringstream beamsEnabled;
    beamsEnabled << beamId;
    simulationHelper->SetBeams(beamsEnabled.str());
 
    // Configure error model
    double errorRate(0.10);
    Config::SetDefault("ns3::SatUtHelper::FwdLinkConstantErrorRate", DoubleValue(errorRate));
    Config::SetDefault("ns3::SatUtHelper::FwdLinkErrorModel",
                       EnumValue(SatPhyRxCarrierConf::EM_CONSTANT));
    Config::SetDefault("ns3::SatGwHelper::RtnLinkErrorModel",
                       EnumValue(SatPhyRxCarrierConf::EM_NONE));
 
    // Enable ARQ
    Config::SetDefault("ns3::SatLlc::RtnLinkArqEnabled", BooleanValue(false));
    Config::SetDefault("ns3::SatLlc::FwdLinkArqEnabled", BooleanValue(true));
 
    // RTN link ARQ attributes
    Config::SetDefault("ns3::SatGenericStreamEncapsulatorArq::MaxNoOfRetransmissions",
                       UintegerValue(2));
    Config::SetDefault("ns3::SatGenericStreamEncapsulatorArq::WindowSize", UintegerValue(20));
    Config::SetDefault("ns3::SatGenericStreamEncapsulatorArq::RetransmissionTimer",
                       TimeValue(Seconds(0.6)));
    Config::SetDefault("ns3::SatGenericStreamEncapsulatorArq::RxWaitingTime",
                       TimeValue(Seconds(1.8)));
 
    // Creating the reference system. Note, currently the satellite module supports
    // only one reference system, which is named as "Scenario72". The string is utilized
    // in mapping the scenario to the needed reference system configuration files. Arbitrary
    // scenario name results in fatal error.
    simulationHelper->CreateSatScenario();
 
    //---- Start CBR application definitions
 
    NS_LOG_INFO("Creating CBR applications and sinks");
 
    if (endUsersPerUt * utsPerBeam > 0)
    {
        Config::SetDefault("ns3::CbrApplication::Interval", TimeValue(Time(interval)));
        Config::SetDefault("ns3::CbrApplication::PacketSize", UintegerValue(packetSize));
 
        simulationHelper->InstallTrafficModel(SimulationHelper::CBR,
                                              SimulationHelper::UDP,
                                              SimulationHelper::FWD_LINK,
                                              appStartTime,
                                              simLength,
                                              Seconds(0.001));
    }
    //---- Stop CBR application definitions
 
    NS_LOG_INFO("--- sat-arq-fwd-example ---");
    NS_LOG_INFO("  Packet size in bytes: " << packetSize);
    NS_LOG_INFO("  Packet sending interval: " << interval.GetSeconds());
    NS_LOG_INFO("  Simulation length: " << simLength.GetSeconds());
    NS_LOG_INFO("  Number of UTs: " << utsPerBeam);
    NS_LOG_INFO("  Number of end users per UT: " << endUsersPerUt);
    NS_LOG_INFO("  ");
 
    simulationHelper->EnableProgressLogs();
    simulationHelper->RunSimulation();
 
    return 0;
}