rrpaa-wifi-manager.h

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/*
 * Copyright (c) 2017 Universidad de la República - Uruguay
 *
 * 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: Matías Richart <mrichart@fing.edu.uy>
 */
 
#ifndef RRPAA_WIFI_MANAGER_H
#define RRPAA_WIFI_MANAGER_H
 
#include "ns3/nstime.h"
#include "ns3/random-variable-stream.h"
#include "ns3/wifi-remote-station-manager.h"
 
namespace ns3
{
 
struct RrpaaWifiRemoteStation;
 
struct WifiRrpaaThresholds
{
    double m_ori;    
    double m_mtl;    
    uint32_t m_ewnd; 
};
 
typedef std::vector<std::pair<WifiRrpaaThresholds, WifiMode>> RrpaaThresholdsTable;
 
typedef std::vector<std::vector<double>> RrpaaProbabilitiesTable;
 
class RrpaaWifiManager : public WifiRemoteStationManager
{
  public:
    static TypeId GetTypeId();
    RrpaaWifiManager();
    ~RrpaaWifiManager() override;
 
    void SetupPhy(const Ptr<WifiPhy> phy) override;
    void SetupMac(const Ptr<WifiMac> mac) override;
 
    int64_t AssignStreams(int64_t stream) override;
 
  private:
    void DoInitialize() override;
    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 DoReportFinalRtsFailed(WifiRemoteStation* station) override;
    void DoReportFinalDataFailed(WifiRemoteStation* station) override;
    WifiTxVector DoGetDataTxVector(WifiRemoteStation* station, uint16_t allowedWidth) override;
    WifiTxVector DoGetRtsTxVector(WifiRemoteStation* station) override;
    bool DoNeedRts(WifiRemoteStation* st, uint32_t size, bool normally) override;
 
    void CheckInit(RrpaaWifiRemoteStation* station);
 
    void CheckTimeout(RrpaaWifiRemoteStation* station);
    void RunBasicAlgorithm(RrpaaWifiRemoteStation* station);
    void RunAdaptiveRtsAlgorithm(RrpaaWifiRemoteStation* station);
    void ResetCountersBasic(RrpaaWifiRemoteStation* station);
 
    void InitThresholds(RrpaaWifiRemoteStation* station);
 
    WifiRrpaaThresholds GetThresholds(RrpaaWifiRemoteStation* station, WifiMode mode) const;
 
    WifiRrpaaThresholds GetThresholds(RrpaaWifiRemoteStation* station, uint8_t index) const;
 
    Time GetCalcTxTime(WifiMode mode) const;
    void AddCalcTxTime(WifiMode mode, Time t);
 
    typedef std::vector<std::pair<Time, WifiMode>> TxTime;
 
    TxTime m_calcTxTime; 
    Time m_sifs;         
    Time m_difs;         
 
    uint32_t m_frameLength; 
    uint32_t m_ackLength;   
 
    bool m_basic;   
    Time m_timeout; 
    double m_alpha; 
    double m_beta;  
    double m_tau;   
    double m_gamma; 
    double m_delta; 
 
    uint8_t m_minPowerLevel; 
    uint8_t m_maxPowerLevel; 
    uint8_t m_nPowerLevels;  
 
    TracedCallback<double, double, Mac48Address> m_powerChange;
    TracedCallback<DataRate, DataRate, Mac48Address> m_rateChange;
 
    Ptr<UniformRandomVariable>
        m_uniformRandomVariable; 
};
 
} // namespace ns3
 
#endif /* RRPAA__WIFI_MANAGER_H */