aarfcd-wifi-manager.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2005,2006 INRIA
 *
 * 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: Federico Maguolo <maguolof@dei.unipd.it>
 */

#ifndef AARFCD_WIFI_MANAGER_H
#define AARFCD_WIFI_MANAGER_H

#include "ns3/traced-value.h"
#include "wifi-remote-station-manager.h"

namespace ns3 {

struct AarfcdWifiRemoteStation;

class AarfcdWifiManager : public WifiRemoteStationManager
{
public:
  static TypeId GetTypeId (void);
  AarfcdWifiManager ();
  virtual ~AarfcdWifiManager ();


private:
  // Overridden from base class.
  void DoInitialize (void);
  WifiRemoteStation * DoCreateStation (void) const;
  void DoReportRxOk (WifiRemoteStation *station,
                     double rxSnr, WifiMode txMode);

  void DoReportRtsFailed (WifiRemoteStation *station);
  void DoReportDataFailed (WifiRemoteStation *station);
  void DoReportRtsOk (WifiRemoteStation *station,
                      double ctsSnr, WifiMode ctsMode, double rtsSnr);
  void DoReportDataOk (WifiRemoteStation *station,
                       double ackSnr, WifiMode ackMode, double dataSnr);
  void DoReportFinalRtsFailed (WifiRemoteStation *station);
  void DoReportFinalDataFailed (WifiRemoteStation *station);
  WifiTxVector DoGetDataTxVector (WifiRemoteStation *station);
  WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
  bool DoNeedRts (WifiRemoteStation *station,
                  Ptr<const Packet> packet, bool normally);
  bool IsLowLatency (void) const;

  void CheckRts (AarfcdWifiRemoteStation *station);
  void IncreaseRtsWnd (AarfcdWifiRemoteStation *station);
  void ResetRtsWnd (AarfcdWifiRemoteStation *station);
  void TurnOffRts (AarfcdWifiRemoteStation *station);
  void TurnOnRts (AarfcdWifiRemoteStation *station);

  //aarf fields below
  uint32_t m_minTimerThreshold; 
  uint32_t m_minSuccessThreshold; 
  double m_successK; 
  uint32_t m_maxSuccessThreshold; 
  double m_timerK; 

  //aarf-cd fields below
  uint32_t m_minRtsWnd; 
  uint32_t m_maxRtsWnd; 
  bool m_turnOffRtsAfterRateDecrease; 
  bool m_turnOnRtsAfterRateIncrease; 

  TracedValue<uint64_t> m_currentRate; 
};

} //namespace ns3

#endif /* AARFCD_WIFI_MANAGER_H */