sat-random-access-slotted-aloha-collision-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: Frans Laakso <frans.laakso@magister.fi>
 *
 */
 
#include "ns3/applications-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-random-access-slotted-aloha-collision-example");
 
int
main(int argc, char* argv[])
{
    uint32_t beamId(1);
    uint32_t endUsersPerUt(1);
    uint32_t utsPerBeam(30);
    uint32_t packetSize(20);
    Time interval(Seconds(0.01));
    Time simLength(Seconds(3.00));
    Time appStartTime = Seconds(0.01);
 
    // Enable info logs
    LogComponentEnable("sat-random-access-slotted-aloha-collision-example", LOG_LEVEL_INFO);
    // LogComponentEnable ("SatRandomAccess", LOG_LEVEL_INFO);
    // LogComponentEnable ("SatUtMac", LOG_LEVEL_INFO);
    LogComponentEnable("SatPhyRxCarrier", LOG_LEVEL_INFO);
    LogComponentEnable("SatInterference", LOG_LEVEL_INFO);
    // LogComponentEnable ("SatBeamScheduler", LOG_LEVEL_INFO);
 
    auto sh = CreateObject<SimulationHelper>("example-random-access-slotted-aloha-collision");
 
    Config::SetDefault("ns3::SatHelper::PacketTraceEnabled", BooleanValue(true));
 
    // 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);
    sh->AddDefaultUiArguments(cmd);
    cmd.Parse(argc, argv);
 
    // Configure error model
    SatPhyRxCarrierConf::ErrorModel em(SatPhyRxCarrierConf::EM_AVI);
    Config::SetDefault("ns3::SatUtHelper::FwdLinkErrorModel", EnumValue(em));
    Config::SetDefault("ns3::SatGwHelper::RtnLinkErrorModel", EnumValue(em));
    // Config::SetDefault ("ns3::SatUtMac::CrUpdatePeriod", TimeValue(Seconds(10.0)));
 
    // Enable Random Access with CRDSA
    Config::SetDefault("ns3::SatBeamHelper::RandomAccessModel",
                       EnumValue(SatEnums::RA_MODEL_SLOTTED_ALOHA));
 
    // Set Random Access interference model
    Config::SetDefault("ns3::SatBeamHelper::RaInterferenceModel",
                       EnumValue(SatPhyRxCarrierConf::IF_PER_PACKET));
 
    // Set Random Access collision model
    Config::SetDefault("ns3::SatBeamHelper::RaCollisionModel",
                       EnumValue(SatPhyRxCarrierConf::RA_COLLISION_CHECK_AGAINST_SINR));
 
    // Disable periodic control slots
    Config::SetDefault("ns3::SatBeamScheduler::ControlSlotsEnabled", BooleanValue(false));
 
    // Set dynamic load control parameters
    Config::SetDefault("ns3::SatPhyRxCarrierConf::EnableRandomAccessDynamicLoadControl",
                       BooleanValue(false));
    Config::SetDefault(
        "ns3::SatPhyRxCarrierConf::RandomAccessAverageNormalizedOfferedLoadMeasurementWindowSize",
        UintegerValue(10));
 
    // Set random access parameters
    Config::SetDefault("ns3::SatLowerLayerServiceConf::RaService0_MaximumUniquePayloadPerBlock",
                       UintegerValue(3));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::RaService0_MaximumConsecutiveBlockAccessed",
                       UintegerValue(6));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::RaService0_MinimumIdleBlock",
                       UintegerValue(2));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::RaService0_BackOffTimeInMilliSeconds",
                       UintegerValue(250));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::RaService0_BackOffProbability",
                       UintegerValue(10000));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::RaService0_HighLoadBackOffProbability",
                       UintegerValue(30000));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::RaService0_NumberOfInstances",
                       UintegerValue(3));
    Config::SetDefault(
        "ns3::SatLowerLayerServiceConf::RaService0_AverageNormalizedOfferedLoadThreshold",
        DoubleValue(0.5));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DefaultControlRandomizationInterval",
                       TimeValue(MilliSeconds(100)));
    Config::SetDefault("ns3::SatRandomAccessConf::CrdsaSignalingOverheadInBytes", UintegerValue(5));
    Config::SetDefault("ns3::SatRandomAccessConf::SlottedAlohaSignalingOverheadInBytes",
                       UintegerValue(3));
 
    // Disable CRA and DA
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService0_ConstantAssignmentProvided",
                       BooleanValue(false));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService1_ConstantAssignmentProvided",
                       BooleanValue(false));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService2_ConstantAssignmentProvided",
                       BooleanValue(false));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService3_ConstantAssignmentProvided",
                       BooleanValue(false));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService0_RbdcAllowed",
                       BooleanValue(false));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService1_RbdcAllowed",
                       BooleanValue(false));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService2_RbdcAllowed",
                       BooleanValue(false));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService3_RbdcAllowed",
                       BooleanValue(false));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService0_VolumeAllowed",
                       BooleanValue(false));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService1_VolumeAllowed",
                       BooleanValue(false));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService2_VolumeAllowed",
                       BooleanValue(false));
    Config::SetDefault("ns3::SatLowerLayerServiceConf::DaService3_VolumeAllowed",
                       BooleanValue(false));
 
    // 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.
    sh->SetSimulationTime(simLength);
    sh->SetUserCountPerUt(endUsersPerUt);
    sh->SetUtCountPerBeam(utsPerBeam);
    sh->SetBeamSet({beamId});
    sh->CreateSatScenario();
 
    Config::SetDefault("ns3::CbrApplication::Interval", TimeValue(interval));
    Config::SetDefault("ns3::CbrApplication::PacketSize", UintegerValue(packetSize));
    sh->InstallTrafficModel(SimulationHelper::CBR,
                            SimulationHelper::UDP,
                            SimulationHelper::RTN_LINK,
                            appStartTime,
                            simLength + Seconds(1),
                            Seconds(0.05));
 
    NS_LOG_INFO("--- Cbr-user-defined-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("  ");
 
    sh->RunSimulation();
 
    return 0;
}