vht-ppdu.h

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/*
 * Copyright (c) 2019 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
 *
 * Author: Rediet <getachew.redieteab@orange.com>
 *         Muhammad Iqbal Rochman <muhiqbalcr@uchicago.edu>
 *         Sébastien Deronne <sebastien.deronne@gmail.com> (VhtSigHeader)
 */
 
#ifndef VHT_PPDU_H
#define VHT_PPDU_H
 
#include "ns3/ofdm-ppdu.h"
#include "ns3/wifi-phy-operating-channel.h"
 
namespace ns3
{
 
class WifiPsdu;
 
class VhtPpdu : public OfdmPpdu
{
  public:
    class VhtSigHeader
    {
      public:
        VhtSigHeader();
 
        void SetMuFlag(bool mu);
 
        void SetChannelWidth(uint16_t channelWidth);
        uint16_t GetChannelWidth() const;
        void SetNStreams(uint8_t nStreams);
        uint8_t GetNStreams() const;
 
        void SetShortGuardInterval(bool sgi);
        bool GetShortGuardInterval() const;
        void SetShortGuardIntervalDisambiguation(bool disambiguation);
        bool GetShortGuardIntervalDisambiguation() const;
        void SetSuMcs(uint8_t mcs);
        uint8_t GetSuMcs() const;
 
      private:
        // VHT-SIG-A1 fields
        uint8_t m_bw;   
        uint8_t m_nsts; 
 
        // VHT-SIG-A2 fields
        uint8_t m_sgi;                
        uint8_t m_sgi_disambiguation; 
        uint8_t m_suMcs;              
 
        bool m_mu;
    }; // class VhtSigHeader
 
    VhtPpdu(Ptr<const WifiPsdu> psdu,
            const WifiTxVector& txVector,
            const WifiPhyOperatingChannel& channel,
            Time ppduDuration,
            uint64_t uid);
 
    Time GetTxDuration() const override;
    Ptr<WifiPpdu> Copy() const override;
    WifiPpduType GetType() const override;
 
  private:
    WifiTxVector DoGetTxVector() const override;
 
    virtual void SetPhyHeaders(const WifiTxVector& txVector, Time ppduDuration);
 
    virtual void SetLSigHeader(LSigHeader& lSig, Time ppduDuration) const;
 
    void SetVhtSigHeader(VhtSigHeader& vhtSig,
                         const WifiTxVector& txVector,
                         Time ppduDuration) const;
 
    void SetTxVectorFromPhyHeaders(WifiTxVector& txVector,
                                   const LSigHeader& lSig,
                                   const VhtSigHeader& vhtSig) const;
 
    VhtSigHeader m_vhtSig; 
};                         // class VhtPpdu
 
} // namespace ns3
 
#endif /* VHT_PPDU_H */