1 /* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */

     2 /*

     3  * Copyright (c) 2003,2007 INRIA

     4  *

     5  * This program is free software; you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License version 2 as 

     7  * published by the Free Software Foundation;

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU General Public License

    15  * along with this program; if not, write to the Free Software

    16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    17  *

    18  * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

    19  */

    20 #ifndef ONOE_MAC_STATIONS_H

    21 #define ONOE_MAC_STATIONS_H

    22 

    23 #include "wifi-remote-station-manager.h"

    24 #include "ns3/nstime.h"

    25 

    26 namespace ns3 {

    27 

    28 class OnoeWifiManager : public WifiRemoteStationManager

    29 {

    30 public:

    31   OnoeWifiManager ();

    32 

    33 private:

    34   friend class OnoeWifiRemoteStation;

    35   virtual WifiRemoteStation *CreateStation (void);

    36 

    37   Time m_updatePeriod;

    38   uint32_t m_addCreditThreshold;

    39   uint32_t m_raiseThreshold;

    40 };

    41 

    42 /**

    43  * \brief an implementation of rate control algorithm developed 

    44  *        by Atsushi Onoe

    45  *

    46  * This algorithm is well known because it has been used as the default

    47  * rate control algorithm for the madwifi driver. I am not aware of

    48  * any publication or reference about this algorithm beyond the madwifi

    49  * source code.

    50  */

    51 class OnoeWifiRemoteStation : public WifiRemoteStation

    52 {

    53 public:

    54   OnoeWifiRemoteStation (OnoeWifiManager *stations);

    55 

    56   virtual ~OnoeWifiRemoteStation ();

    57 

    58   virtual void ReportRxOk (double rxSnr, WifiMode txMode);

    59   virtual void ReportRtsFailed (void);

    60   virtual void ReportDataFailed (void);

    61   virtual void ReportRtsOk (double ctsSnr, WifiMode ctsMode, double rtsSnr);

    62   virtual void ReportDataOk (double ackSnr, WifiMode ackMode, double dataSnr);

    63   virtual void ReportFinalRtsFailed (void);

    64   virtual void ReportFinalDataFailed (void);

    65 

    66 private:

    67   virtual OnoeWifiManager *GetStations (void) const;

    68   virtual WifiMode DoGetDataMode (uint32_t size);

    69   virtual WifiMode DoGetRtsMode (void);

    70 

    71   void UpdateRetry (void);

    72   void UpdateMode (void);

    73 

    74   OnoeWifiManager *m_stations;

    75   Time m_nextModeUpdate;

    76   uint32_t m_shortRetry;

    77   uint32_t m_longRetry;

    78   uint32_t m_tx_ok;

    79   uint32_t m_tx_err;

    80   uint32_t m_tx_retr;

    81   uint32_t m_tx_upper;

    82   uint32_t m_txrate;

    83 };

    84 

    85 } // namespace ns3

    86 

    87 #endif /* ONOE_MAC_STATIONS_H */