spectrum-analyzer-helper.cc

Go to the documentation of this file.

/*
 * Copyright (c) 2010 CTTC
 *
 * 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: Nicola Baldo <nbaldo@cttc.es>
 */
#include "spectrum-analyzer-helper.h"
 
#include "ns3/antenna-model.h"
#include "ns3/config.h"
#include "ns3/log.h"
#include "ns3/mobility-model.h"
#include "ns3/names.h"
#include "ns3/non-communicating-net-device.h"
#include "ns3/output-stream-wrapper.h"
#include "ns3/propagation-delay-model.h"
#include "ns3/simulator.h"
#include "ns3/spectrum-analyzer.h"
#include "ns3/spectrum-channel.h"
#include "ns3/spectrum-propagation-loss-model.h"
#include "ns3/trace-helper.h"
 
namespace ns3
{
 
NS_LOG_COMPONENT_DEFINE("SpectrumAnalyzerHelper");
 
static void
WriteAveragePowerSpectralDensityReport(Ptr<OutputStreamWrapper> streamWrapper,
                                       Ptr<const SpectrumValue> avgPowerSpectralDensity)
{
    NS_LOG_FUNCTION(streamWrapper << avgPowerSpectralDensity);
    std::ostream* ostream = streamWrapper->GetStream();
    if (ostream->good())
    {
        auto fi = avgPowerSpectralDensity->ConstBandsBegin();
        auto vi = avgPowerSpectralDensity->ConstValuesBegin();
        while (fi != avgPowerSpectralDensity->ConstBandsEnd())
        {
            NS_ASSERT(vi != avgPowerSpectralDensity->ConstValuesEnd());
            *ostream << Now().GetSeconds() << " " << fi->fc << " " << *vi << std::endl;
            ++fi;
            ++vi;
        }
        // An additional line separates different spectrums sweeps
        *ostream << std::endl;
    }
}
 
SpectrumAnalyzerHelper::SpectrumAnalyzerHelper()
{
    NS_LOG_FUNCTION(this);
    m_phy.SetTypeId("ns3::SpectrumAnalyzer");
    m_device.SetTypeId("ns3::NonCommunicatingNetDevice");
    m_antenna.SetTypeId("ns3::IsotropicAntennaModel");
}
 
SpectrumAnalyzerHelper::~SpectrumAnalyzerHelper()
{
    NS_LOG_FUNCTION(this);
}
 
void
SpectrumAnalyzerHelper::SetChannel(Ptr<SpectrumChannel> channel)
{
    NS_LOG_FUNCTION(this);
    m_channel = channel;
}
 
void
SpectrumAnalyzerHelper::SetChannel(std::string channelName)
{
    NS_LOG_FUNCTION(this);
    Ptr<SpectrumChannel> channel = Names::Find<SpectrumChannel>(channelName);
    m_channel = channel;
}
 
void
SpectrumAnalyzerHelper::SetPhyAttribute(std::string name, const AttributeValue& v)
{
    NS_LOG_FUNCTION(this);
    m_phy.Set(name, v);
}
 
void
SpectrumAnalyzerHelper::SetDeviceAttribute(std::string name, const AttributeValue& v)
{
    NS_LOG_FUNCTION(this);
    m_device.Set(name, v);
}
 
void
SpectrumAnalyzerHelper::SetRxSpectrumModel(Ptr<SpectrumModel> m)
{
    NS_LOG_FUNCTION(this);
    m_rxSpectrumModel = m;
}
 
void
SpectrumAnalyzerHelper::EnableAsciiAll(std::string prefix)
{
    NS_LOG_FUNCTION(this);
    m_prefix = prefix;
}
 
NetDeviceContainer
SpectrumAnalyzerHelper::Install(NodeContainer c) const
{
    NS_LOG_FUNCTION(this);
    NetDeviceContainer devices;
    for (auto i = c.Begin(); i != c.End(); ++i)
    {
        Ptr<Node> node = *i;
 
        Ptr<NonCommunicatingNetDevice> dev =
            m_device.Create()->GetObject<NonCommunicatingNetDevice>();
 
        Ptr<SpectrumAnalyzer> phy = m_phy.Create()->GetObject<SpectrumAnalyzer>();
        NS_ASSERT(phy);
 
        dev->SetPhy(phy);
 
        NS_ASSERT(node);
        phy->SetMobility(node->GetObject<MobilityModel>());
 
        NS_ASSERT(dev);
        phy->SetDevice(dev);
 
        NS_ASSERT_MSG(m_rxSpectrumModel,
                      "you forgot to call SpectrumAnalyzerHelper::SetRxSpectrumModel ()");
        phy->SetRxSpectrumModel(m_rxSpectrumModel);
 
        NS_ASSERT_MSG(m_channel, "you forgot to call SpectrumAnalyzerHelper::SetChannel ()");
        m_channel->AddRx(phy);
 
        dev->SetChannel(m_channel);
 
        Ptr<AntennaModel> antenna = (m_antenna.Create())->GetObject<AntennaModel>();
        NS_ASSERT_MSG(antenna, "error in creating the AntennaModel object");
        phy->SetAntenna(antenna);
 
        uint32_t devId = node->AddDevice(dev);
        devices.Add(dev);
 
        if (!m_prefix.empty())
        {
            NS_LOG_LOGIC("creating new output stream and binding it to the callback");
            AsciiTraceHelper asciiTraceHelper;
            std::string filename;
            filename = asciiTraceHelper.GetFilenameFromDevice(m_prefix, dev);
            Ptr<OutputStreamWrapper> stream = asciiTraceHelper.CreateFileStream(filename);
 
            // note that we don't use AsciiTraceHelper to connect the trace sink, since we use a
            // custom trace sink
 
            // the following is inspired from YansWifiPhyHelper::EnableAsciiInternal
            std::ostringstream oss;
            oss.str("");
            oss << "/NodeList/" << node->GetId() << "/DeviceList/" << devId
                << "/$ns3::NonCommunicatingNetDevice/Phy/AveragePowerSpectralDensityReport";
            Config::ConnectWithoutContext(
                oss.str(),
                MakeBoundCallback(&WriteAveragePowerSpectralDensityReport, stream));
 
            phy->Start();
        }
    }
    return devices;
}
 
NetDeviceContainer
SpectrumAnalyzerHelper::Install(Ptr<Node> node) const
{
    NS_LOG_FUNCTION(this);
    return Install(NodeContainer(node));
}
 
NetDeviceContainer
SpectrumAnalyzerHelper::Install(std::string nodeName) const
{
    NS_LOG_FUNCTION(this);
    Ptr<Node> node = Names::Find<Node>(nodeName);
    return Install(node);
}
 
} // namespace ns3