--- a/src/devices/wifi/wifi-phy.cc	Mon Nov 19 08:38:48 2007 +0100
+++ b/src/devices/wifi/wifi-phy.cc	Mon Nov 19 09:22:17 2007 +0100
@@ -520,6 +520,12 @@
   return retval;
 }
 
+Time 
+WifiPhy::GetLastRxStartTime (void) const
+{
+  return m_startSync;
+}
+
 
 Time
 WifiPhy::CalculateTxDuration (uint32_t size, WifiMode payloadMode, WifiPreamble preamble) const

--- a/src/devices/wifi/wifi-phy.h	Mon Nov 19 08:38:48 2007 +0100
+++ b/src/devices/wifi/wifi-phy.h	Mon Nov 19 09:22:17 2007 +0100
@@ -196,6 +196,8 @@
    */
   Time GetDelayUntilIdle (void);
 
+  Time GetLastRxStartTime (void) const;
+
   /**
    * \param size the number of bytes in the packet to send
    * \param payloadMode the transmission mode to use for this packet