dsss-phy.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2020 Orange Labs
 *
 * 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
 *
 * Authors: Rediet <getachew.redieteab@orange.com>
 *          Sébastien Deronne <sebastien.deronne@gmail.com> (for logic ported from wifi-phy)
 *          Mathieu Lacage <mathieu.lacage@sophia.inria.fr> (for logic ported from wifi-phy)
 */

#ifndef DSSS_PHY_H
#define DSSS_PHY_H

#include "ns3/phy-entity.h"
#include <vector>

namespace ns3 {

class DsssPhy : public PhyEntity
{
public:
  DsssPhy ();
  virtual ~DsssPhy ();

  WifiMode GetSigMode (WifiPpduField field, const WifiTxVector& txVector) const override;
  const PpduFormats & GetPpduFormats (void) const override;
  Time GetDuration (WifiPpduField field, const WifiTxVector& txVector) const override;
  Time GetPayloadDuration (uint32_t size, const WifiTxVector& txVector, WifiPhyBand band, MpduType mpdutype,
                           bool incFlag, uint32_t &totalAmpduSize, double &totalAmpduNumSymbols,
                           uint16_t staId) const override;
  Ptr<WifiPpdu> BuildPpdu (const WifiConstPsduMap & psdus, const WifiTxVector& txVector, Time ppduDuration) override;
  uint32_t GetMaxPsduSize (void) const override;

  static void InitializeModes (void);
  static WifiMode GetDsssRate (uint64_t rate);
  static WifiMode GetDsssRate1Mbps (void);
  static WifiMode GetDsssRate2Mbps (void);
  static WifiMode GetDsssRate5_5Mbps (void);
  static WifiMode GetDsssRate11Mbps (void);

  static WifiCodeRate GetCodeRate (const std::string& name);
  static uint16_t GetConstellationSize (const std::string& name);
  static uint64_t GetDataRateFromTxVector (const WifiTxVector& txVector, uint16_t staId);
  static uint64_t GetDataRate (const std::string& name, WifiModulationClass modClass, uint16_t channelWidth, uint16_t guardInterval, uint8_t nss);
  static bool IsModeAllowed (uint16_t channelWidth, uint8_t nss);

private:
  PhyFieldRxStatus DoEndReceiveField (WifiPpduField field, Ptr<Event> event) override;
  Ptr<SpectrumValue> GetTxPowerSpectralDensity (double txPowerW, Ptr<const WifiPpdu> ppdu) const override;
  uint16_t GetRxChannelWidth (const WifiTxVector& txVector) const override;

  WifiMode GetHeaderMode (const WifiTxVector& txVector) const;

  Time GetPreambleDuration (const WifiTxVector& txVector) const;
  Time GetHeaderDuration (const WifiTxVector& txVector) const;

  PhyFieldRxStatus EndReceiveHeader (Ptr<Event> event);

  static WifiMode CreateDsssMode (std::string uniqueName, WifiModulationClass modClass);

  static const PpduFormats m_dsssPpduFormats; 

  static const ModulationLookupTable m_dsssModulationLookupTable; 
}; //class DsssPhy

} //namespace ns3

#endif /* DSSS_PHY_H */