--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/devices/wifi/rraa-mac-stations.h	Fri Feb 22 23:45:25 2008 +0100
@@ -0,0 +1,104 @@
+/* -*-  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 RRAA_MAC_STATIONS_H
+#define RRAA_MAC_STATIONS_H
+
+#include "ns3/nstime.h"
+#include "mac-stations.h"
+
+namespace ns3 {
+
+struct ThresholdsItem {
+  uint32_t datarate;
+  double pori;
+  double pmtl;
+  uint32_t ewnd;
+};
+
+typedef std::vector<ThresholdsItem> Thresholds;
+
+/**
+ * \brief Robust Rate Adaptation Algorithm
+ *
+ * This is an implementation of RRAA as described in
+ * "Robust rate adaptation for 802.11 wireless networks"
+ * by "Starsky H. Y. Wong", "Hao Yang", "Songwu Lu", and,
+ * "Vaduvur Bharghavan" published in Mobicom 06.
+ */
+class RraaMacStations : public MacStations {
+public:
+  RraaMacStations (WifiMode defaultTxMode);
+  virtual ~RraaMacStations ();
+  void DoConstruct ();
+  bool OnlyBasic (void);
+  double GetTimeout (void);
+  ThresholdsItem GetThresholds (WifiMode mode);
+private:
+  virtual class MacStation *CreateStation (void);  
+  Thresholds m_thresholds;
+  bool m_basic;
+  double m_timeout;
+};
+
+
+class RraaMacStation : public MacStation
+{
+public:
+  RraaMacStation (RraaMacStations *stations, Thresholds thresholds);
+  virtual ~RraaMacStation ();
+
+  virtual void ReportRxOk (double rxSnr, WifiMode txMode);
+  virtual void ReportRtsFailed (void);
+  virtual void ReportDataFailed (void);
+  virtual void ReportRtsOk (double ctsSnr, WifiMode ctsMode, double rtsSnr);
+  virtual void ReportDataOk (double ackSnr, WifiMode ackMode, double dataSnr);
+  virtual void ReportFinalRtsFailed (void);
+  virtual void ReportFinalDataFailed (void);
+  virtual bool NeedRts (Ptr<const Packet> packet);
+
+private:
+  virtual RraaMacStations *GetStations (void) const;
+  virtual WifiMode DoGetDataMode (uint32_t size);
+  virtual WifiMode DoGetRtsMode (void);
+  uint32_t GetMaxRate (void);
+  uint32_t GetMinRate (void);
+  ThresholdsItem GetThresholds (uint32_t rate);
+  void CheckTimeout (void);
+  void RunBasicAlgorithm (void);
+  void ARts (void);
+  void ResetCountersBasic (void);
+
+  uint32_t m_counter;
+  uint32_t m_failed;
+  uint32_t m_rtsWnd;
+  uint32_t m_rtsCounter;
+  Time m_lastReset;
+  bool m_rtsOn;
+  bool m_lastFrameFail;
+  bool m_initialized;
+
+  uint32_t m_rate;
+
+  RraaMacStations *m_stations;
+};
+
+} // namespace ns3
+
+#endif /* RRAA_MAC_STATIONS_H */