spectrum-model.cc

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/*
 * Copyright (c) 2009 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-model.h"
 
#include <ns3/assert.h>
#include <ns3/log.h>
 
#include <cmath>
#include <cstddef>
 
namespace ns3
{
 
NS_LOG_COMPONENT_DEFINE("SpectrumModel");
 
bool
operator==(const SpectrumModel& lhs, const SpectrumModel& rhs)
{
    return (lhs.m_uid == rhs.m_uid);
}
 
SpectrumModelUid_t SpectrumModel::m_uidCount = 0;
 
SpectrumModel::SpectrumModel(const std::vector<double>& centerFreqs)
{
    NS_ASSERT(centerFreqs.size() > 1);
    m_uid = ++m_uidCount;
 
    for (auto it = centerFreqs.begin(); it != centerFreqs.end(); ++it)
    {
        BandInfo e;
        e.fc = *it;
        if (it == centerFreqs.begin())
        {
            double delta = ((*(it + 1)) - (*it)) / 2;
            e.fl = *it - delta;
            e.fh = *it + delta;
        }
        else if (it == centerFreqs.end() - 1)
        {
            double delta = ((*it) - (*(it - 1))) / 2;
            e.fl = *it - delta;
            e.fh = *it + delta;
        }
        else
        {
            e.fl = ((*it) + (*(it - 1))) / 2;
            e.fh = ((*(it + 1)) + (*it)) / 2;
        }
        m_bands.push_back(e);
    }
}
 
SpectrumModel::SpectrumModel(const Bands& bands)
{
    m_uid = ++m_uidCount;
    NS_LOG_INFO("creating new SpectrumModel, m_uid=" << m_uid);
    m_bands = bands;
}
 
SpectrumModel::SpectrumModel(Bands&& bands)
    : m_bands(std::move(bands))
{
    m_uid = ++m_uidCount;
    NS_LOG_INFO("creating new SpectrumModel, m_uid=" << m_uid);
}
 
Bands::const_iterator
SpectrumModel::Begin() const
{
    return m_bands.begin();
}
 
Bands::const_iterator
SpectrumModel::End() const
{
    return m_bands.end();
}
 
size_t
SpectrumModel::GetNumBands() const
{
    return m_bands.size();
}
 
SpectrumModelUid_t
SpectrumModel::GetUid() const
{
    return m_uid;
}
 
bool
SpectrumModel::IsOrthogonal(const SpectrumModel& other) const
{
    for (auto myIt = Begin(); myIt != End(); ++myIt)
    {
        for (auto otherIt = other.Begin(); otherIt != other.End(); ++otherIt)
        {
            if (std::max(myIt->fl, otherIt->fl) < std::min(myIt->fh, otherIt->fh))
            {
                return false;
            }
        }
    }
    return true;
}
 
} // namespace ns3