diff -r b470331449bc -r e3a02ed14587 src/wifi/model/amrr-wifi-manager.h
--- a/src/wifi/model/amrr-wifi-manager.h	Mon Dec 09 09:28:17 2013 -0800
+++ b/src/wifi/model/amrr-wifi-manager.h	Tue Dec 10 10:48:51 2013 -0500
@@ -60,15 +60,78 @@
   virtual WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
   virtual bool IsLowLatency (void) const;
 
-  void UpdateRetry (AmrrWifiRemoteStation *station);
+  //void UpdateRetry (AmrrWifiRemoteStation *station);
+  /**
+   * Update the mode used to send to the given station.
+   *
+   * \param station
+   */
   void UpdateMode (AmrrWifiRemoteStation *station);
+  /**
+   * Reset transmission statistics of the given station.
+   *
+   * \param station
+   */
   void ResetCnt (AmrrWifiRemoteStation *station);
+  /**
+   * Increase the transmission rate to the given station.
+   *
+   * \param station
+   */
   void IncreaseRate (AmrrWifiRemoteStation *station);
+  /**
+   * Decrease the transmission rate to the given station.
+   *
+   * \param station
+   */
   void DecreaseRate (AmrrWifiRemoteStation *station);
+  /**
+   * Check if the current rate for the given station is the
+   * minimum rate.
+   *
+   * \param station
+   * \return true if the current rate is the minimum rate,
+   *         false otherwise
+   */
   bool IsMinRate (AmrrWifiRemoteStation *station) const;
+  /**
+   * Check if the current rate for the given station is the
+   * maximum rate.
+   *
+   * \param station
+   * \return true if the current rate is the maximum rate,
+   *         false otherwise
+   */
   bool IsMaxRate (AmrrWifiRemoteStation *station) const;
+  /**
+   * Check if the number of retransmission and transmission error
+   * is less than the number of successful transmission (times ratio).
+   *
+   * \param station
+   * \return true if the number of retransmission and transmission error
+   *              is less than the number of successful transmission
+   *              (times ratio), false otherwise
+   */
   bool IsSuccess (AmrrWifiRemoteStation *station) const;
+  /**
+   * Check if the number of retransmission and transmission error
+   * is greater than the number of successful transmission (times ratio).
+   *
+   * \param station
+   * \return true if the number of retransmission and transmission error
+   *              is less than the number of successful transmission
+   *              (times ratio), false otherwise
+   */
   bool IsFailure (AmrrWifiRemoteStation *station) const;
+  /**
+   * Check if the number of retransmission, transmission error,
+   * and successful transmission are greater than 10.
+   *
+   * \param station
+   * \return true if the number of retransmission, transmission error,
+   *         and successful transmission are greater than 10,
+   *         false otherwise
+   */
   bool IsEnough (AmrrWifiRemoteStation *station) const;
 
   Time m_updatePeriod;