thompson-sampling-wifi-manager.h

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/*
 * Copyright (c) 2021 IITP RAS
 *
 * 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: Alexander Krotov <krotov@iitp.ru>
 */
 
#ifndef THOMPSON_SAMPLING_WIFI_MANAGER_H
#define THOMPSON_SAMPLING_WIFI_MANAGER_H
 
#include "ns3/random-variable-stream.h"
#include "ns3/traced-value.h"
#include "ns3/wifi-remote-station-manager.h"
 
namespace ns3
{
 
class ThompsonSamplingWifiManager : public WifiRemoteStationManager
{
  public:
    static TypeId GetTypeId();
    ThompsonSamplingWifiManager();
    ~ThompsonSamplingWifiManager() override;
 
    int64_t AssignStreams(int64_t stream) override;
 
  private:
    WifiRemoteStation* DoCreateStation() const override;
    void DoReportRxOk(WifiRemoteStation* station, double rxSnr, WifiMode txMode) override;
    void DoReportRtsFailed(WifiRemoteStation* station) override;
    void DoReportDataFailed(WifiRemoteStation* station) override;
    void DoReportRtsOk(WifiRemoteStation* station,
                       double ctsSnr,
                       WifiMode ctsMode,
                       double rtsSnr) override;
    void DoReportDataOk(WifiRemoteStation* station,
                        double ackSnr,
                        WifiMode ackMode,
                        double dataSnr,
                        uint16_t dataChannelWidth,
                        uint8_t dataNss) override;
    void DoReportAmpduTxStatus(WifiRemoteStation* station,
                               uint16_t nSuccessfulMpdus,
                               uint16_t nFailedMpdus,
                               double rxSnr,
                               double dataSnr,
                               uint16_t dataChannelWidth,
                               uint8_t dataNss) override;
    void DoReportFinalRtsFailed(WifiRemoteStation* station) override;
    void DoReportFinalDataFailed(WifiRemoteStation* station) override;
    WifiTxVector DoGetDataTxVector(WifiRemoteStation* station, uint16_t allowedWidth) override;
    WifiTxVector DoGetRtsTxVector(WifiRemoteStation* station) override;
 
    void InitializeStation(WifiRemoteStation* station) const;
 
    void UpdateNextMode(WifiRemoteStation* station) const;
 
    void Decay(WifiRemoteStation* st, size_t i) const;
 
    uint16_t GetModeGuardInterval(WifiRemoteStation* st, WifiMode mode) const;
 
    double SampleBetaVariable(uint64_t alpha, uint64_t beta) const;
 
    Ptr<GammaRandomVariable>
        m_gammaRandomVariable; 
 
    double m_decay; 
 
    TracedValue<uint64_t> m_currentRate; 
};
 
} // namespace ns3
 
#endif /* THOMPSON_SAMPLING_WIFI_MANAGER_H */