sat-mobility-beam-tracer.cc

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2018 CNES
 *
 * 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: Mathias Ettinger <mettinger@toulouse.viveris.fr>
 */
 
#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>
 
#include <iostream>
 
using namespace ns3;
 
Ptr<SatMobilityModel> satMobility = nullptr;
std::set<uint32_t> visitedBeams;
std::vector<double> relativeSpeeds;
 
static void
SatCourseChange(std::string context, Ptr<const SatMobilityModel> position)
{
    auto tracedPosition = DynamicCast<const SatTracedMobilityModel>(position);
    NS_ASSERT_MSG(tracedPosition != NULL, "Course changed for a non-mobile UT");
 
    uint32_t beam = tracedPosition->GetBestBeamId();
    visitedBeams.insert(beam);
    relativeSpeeds.push_back(tracedPosition->GetRelativeSpeed(satMobility));
}
 
NS_LOG_COMPONENT_DEFINE("sat-mobility-beam-tracer");
 
int
main(int argc, char* argv[])
{
    std::string inputFileNameWithPath =
        Singleton<SatEnvVariables>::Get()->LocateDirectory("contrib/satellite/examples") +
        "/generic-input-attributes.xml";
    std::string mobileUtTraceFile("");
 
    Ptr<SimulationHelper> simulationHelper =
        CreateObject<SimulationHelper>("sat-mobility-position-generator");
    simulationHelper->DisableAllCapacityAssignmentCategories();
    simulationHelper->EnableCrdsa();
 
    // Parse command-line and XML file
    CommandLine cmd;
    cmd.AddValue("TraceFile", "Path to the trace file to check beams from", mobileUtTraceFile);
    simulationHelper->AddDefaultUiArguments(cmd, inputFileNameWithPath);
    cmd.Parse(argc, argv);
    simulationHelper->ReadInputAttributesFromFile(inputFileNameWithPath);
 
    if (mobileUtTraceFile != "")
    {
        Ptr<SatHelper> satHelper = CreateObject<SatHelper>();
        satMobility =
            satHelper->GetBeamHelper()->GetGeoSatNodes().Get(0)->GetObject<SatMobilityModel>();
        Ptr<Node> node = satHelper->LoadMobileUtFromFile(0, mobileUtTraceFile);
        node->GetObject<SatMobilityModel>()->TraceConnect("SatCourseChange",
                                                          "BeamTracer",
                                                          MakeCallback(SatCourseChange));
 
        Ptr<SimulationHelperConf> simulationConf = CreateObject<SimulationHelperConf>();
        Simulator::Stop(simulationConf->m_simTime);
        Simulator::Run();
        Simulator::Destroy();
 
        std::cout << "Visited beams are:";
        for (auto& beam : visitedBeams)
        {
            std::cout << " " << beam;
        }
        std::cout << std::endl;
 
        double minSpeed = 0.0, maxSpeed = 0.0, totalSpeed = 0.0;
        uint32_t valuesCount = 0;
        for (double& speed : relativeSpeeds)
        {
            if (!minSpeed)
            {
                minSpeed = speed;
            }
            if (speed)
            {
                minSpeed = std::min(minSpeed, speed);
                maxSpeed = std::max(maxSpeed, speed);
                totalSpeed += speed;
                ++valuesCount;
            }
        }
        std::cout << "Speeding stats (m/s):\n\tmin: " << minSpeed << "\n\tmax: " << maxSpeed
                  << "\n\tmean: " << totalSpeed / valuesCount << std::endl;
    }
}