/* -*-  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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#ifndef AARF_WIFI_MANAGER_H

#define AARF_WIFI_MANAGER_H

#include "arf-wifi-manager.h"

namespace ns3 {

/**

 * \brief AARF Rate control algorithm

 *

 * This class implements the AARF rate control algorithm which

 * was initially described in <i>IEEE 802.11 Rate Adaptation:

 * A Practical Approach</i>, by M. Lacage, M.H. Manshaei, and 

 * T. Turletti.

 */

class AarfWifiManager : public ArfWifiManager 

{

public:

  static TypeId GetTypeId (void);

  AarfWifiManager ();

  virtual ~AarfWifiManager ();

private:

  friend class AarfWifiRemoteStation;

  virtual class WifiRemoteStation *CreateStation (void);

  uint32_t m_minTimerThreshold;

  uint32_t m_minSuccessThreshold;

  double m_successK;

  uint32_t m_maxSuccessThreshold;

  double m_timerK;

};

class AarfWifiRemoteStation : public ArfWifiRemoteStation

{

public:

  AarfWifiRemoteStation (Ptr<AarfWifiManager> stations);

  virtual ~AarfWifiRemoteStation ();

private:

  virtual void ReportRecoveryFailure (void);

  virtual void ReportFailure (void);

  virtual Ptr<WifiRemoteStationManager> GetManager (void) const;

  Ptr<AarfWifiManager> m_manager;

};

} // namespace ns3

#endif /* AARF_WIFI_MANAGER_H */