--- a/src/uan/model/uan-phy.cc	Fri Jun 15 06:59:19 2012 -0700
+++ b/src/uan/model/uan-phy.cc	Mon Jun 18 10:18:58 2012 +0200
@@ -69,8 +69,64 @@
 TypeId UanPhy::GetTypeId (void)
 {
   static TypeId tid = TypeId ("ns3::UanPhy")
-    .SetParent<Object> ();
+    .SetParent<Object> ()
+    .AddTraceSource ("PhyTxBegin",
+                     "Trace source indicating a packet has begun transmitting over the channel medium",
+                     MakeTraceSourceAccessor (&UanPhy::m_phyTxBeginTrace))
+    .AddTraceSource ("PhyTxEnd",
+                     "Trace source indicating a packet has been completely transmitted over the channel.",
+                   MakeTraceSourceAccessor (&UanPhy::m_phyTxEndTrace))
+    .AddTraceSource ("PhyTxDrop",
+                     "Trace source indicating a packet has been dropped by the device during transmission",
+                     MakeTraceSourceAccessor (&UanPhy::m_phyTxDropTrace))
+    .AddTraceSource ("PhyRxBegin",
+                     "Trace source indicating a packet has begun being received from the channel medium by the device",
+                     MakeTraceSourceAccessor (&UanPhy::m_phyRxBeginTrace))
+    .AddTraceSource ("PhyRxEnd",
+                     "Trace source indicating a packet has been completely received from the channel medium by the device",
+                     MakeTraceSourceAccessor (&UanPhy::m_phyRxEndTrace))
+    .AddTraceSource ("PhyRxDrop",
+                     "Trace source indicating a packet has been dropped by the device during reception",
+                     MakeTraceSourceAccessor (&UanPhy::m_phyRxDropTrace))
+  ;
   return tid;
 }
 
+
+void
+UanPhy::NotifyTxBegin (Ptr<const Packet> packet)
+{
+  m_phyTxBeginTrace (packet);
+}
+
+void
+UanPhy::NotifyTxEnd (Ptr<const Packet> packet)
+{
+  m_phyTxEndTrace (packet);
+}
+
+void
+UanPhy::NotifyTxDrop (Ptr<const Packet> packet)
+{
+  m_phyTxDropTrace (packet);
+}
+
+void
+UanPhy::NotifyRxBegin (Ptr<const Packet> packet)
+{
+  m_phyRxBeginTrace (packet);
+}
+
+void
+UanPhy::NotifyRxEnd (Ptr<const Packet> packet)
+{
+  m_phyRxEndTrace (packet);
+}
+
+void
+UanPhy::NotifyRxDrop (Ptr<const Packet> packet)
+{
+  m_phyRxDropTrace (packet);
+}
+
 } // namespace ns3

--- a/src/uan/model/uan-phy.h	Fri Jun 15 06:59:19 2012 -0700
+++ b/src/uan/model/uan-phy.h	Mon Jun 18 10:18:58 2012 +0200
@@ -382,6 +382,91 @@
   virtual void Clear (void) = 0;
 
   virtual void SetSleepMode (bool sleep) = 0;
+
+
+  /**
+   * Public method used to fire a PhyTxBegin trace.  Implemented for encapsulation
+   * purposes.
+   */
+  void NotifyTxBegin (Ptr<const Packet> packet);
+
+  /**
+   * Public method used to fire a PhyTxEnd trace.  Implemented for encapsulation
+   * purposes.
+   */
+  void NotifyTxEnd (Ptr<const Packet> packet);
+
+  /**
+   * Public method used to fire a PhyTxDrop trace.  Implemented for encapsulation
+   * purposes.
+   */
+  void NotifyTxDrop (Ptr<const Packet> packet);
+
+  /**
+   * Public method used to fire a PhyRxBegin trace.  Implemented for encapsulation
+   * purposes.
+   */
+  void NotifyRxBegin (Ptr<const Packet> packet);
+
+  /**
+   * Public method used to fire a PhyRxEnd trace.  Implemented for encapsulation
+   * purposes.
+   */
+  void NotifyRxEnd (Ptr<const Packet> packet);
+
+  /**
+   * Public method used to fire a PhyRxDrop trace.  Implemented for encapsulation
+   * purposes.
+   */
+  void NotifyRxDrop (Ptr<const Packet> packet);
+
+private:
+  /**
+   * The trace source fired when a packet begins the transmission process on
+   * the medium.
+   *
+   * \see class CallBackTraceSource
+   */
+  TracedCallback<Ptr<const Packet> > m_phyTxBeginTrace;
+
+  /**
+   * The trace source fired when a packet ends the transmission process on
+   * the medium.
+   *
+   * \see class CallBackTraceSource
+   */
+  TracedCallback<Ptr<const Packet> > m_phyTxEndTrace;
+
+  /**
+   * The trace source fired when the phy layer drops a packet as it tries
+   * to transmit it.
+   *
+   * \see class CallBackTraceSource
+   */
+  TracedCallback<Ptr<const Packet> > m_phyTxDropTrace;
+
+  /**
+   * The trace source fired when a packet begins the reception process from
+   * the medium.
+   *
+   * \see class CallBackTraceSource
+   */
+  TracedCallback<Ptr<const Packet> > m_phyRxBeginTrace;
+
+  /**
+   * The trace source fired when a packet ends the reception process from
+   * the medium.
+   *
+   * \see class CallBackTraceSource
+   */
+  TracedCallback<Ptr<const Packet> > m_phyRxEndTrace;
+
+  /**
+   * The trace source fired when the phy layer drops a packet it has received.
+   *
+   * \see class CallBackTraceSource
+   */
+  TracedCallback<Ptr<const Packet> > m_phyRxDropTrace;
 };
 
 }