Index: src/devices/uan/uan-mac-cw.h |
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+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */ |
+/* |
+ * Copyright (c) 2009 University of Washington |
+ * |
+ * 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: Leonard Tracy <lentracy@gmail.com> |
+ */ |
+ |
+#ifndef UANMACCW_H |
+#define UANMACCW_H |
+ |
+#include "ns3/uan-mac.h" |
+#include "ns3/nstime.h" |
+#include "ns3/simulator.h" |
+#include "ns3/uan-phy.h" |
+#include "ns3/uan-tx-mode.h" |
+#include "ns3/uan-address.h" |
+ |
+ |
+namespace ns3 { |
+ |
+/** |
+ * \class UanMacCw |
+ * \brief CW-MAC A MAC protocol similar in idea to the 802.11 DCF with constant backoff window |
+ * |
+ * For more information on this MAC protocol, see: |
+ * Parrish, N.; Tracy, L.; Roy, S.; Arabshahi, P.; Fox, W., |
+ * "System Design Considerations for Undersea Networks: Link and Multiple Access Protocols," |
+ * Selected Areas in Communications, IEEE Journal on , vol.26, no.9, pp.1720-1730, December 2008 |
+ */ |
+class UanMacCw : public ns3::UanMac, |
+ public ns3::UanPhyListener |
+{ |
+public: |
+ UanMacCw (); |
+ virtual ~UanMacCw (); |
+ static TypeId GetTypeId (void); |
+ |
+ /** |
+ * \param cw Contention window size |
+ */ |
+ virtual void SetCw (uint32_t cw); |
+ /** |
+ * \param duration Slot time duration |
+ */ |
+ virtual void SetSlotTime (Time duration); |
+ /** |
+ * \returns Contention window size |
+ */ |
+ virtual uint32_t GetCw (void); |
+ /** |
+ * \returns slot time duration |
+ */ |
+ virtual Time GetSlotTime (void); |
+ |
+ // Inherited methods |
+ virtual Address GetAddress (); |
+ virtual void SetAddress (UanAddress addr); |
+ virtual bool Enqueue (Ptr<Packet> pkt, const Address &dest, uint16_t protocolNumber); |
+ virtual void SetForwardUpCb (Callback<void, Ptr<Packet>, const UanAddress&> cb); |
+ virtual void AttachPhy (Ptr<UanPhy> phy); |
+ virtual Address GetBroadcast (void) const; |
+ |
+ // PHY listeners |
+ virtual void NotifyRxStart (void); |
+ virtual void NotifyRxEndOk (void); |
+ virtual void NotifyRxEndError (void); |
+ virtual void NotifyCcaStart (void); |
+ virtual void NotifyCcaEnd (void); |
+ virtual void NotifyTxStart (Time duration); |
+private: |
+ typedef enum { |
+ IDLE, CCABUSY, RUNNING, TX |
+ } State; |
+ |
+ Callback <void, Ptr<Packet>, const UanAddress& > m_forwardUpCb; |
+ UanAddress m_address; |
+ Ptr<UanPhy> m_phy; |
+ TracedCallback<Ptr<const Packet>, UanTxMode > m_rxLogger; |
+ TracedCallback<Ptr<const Packet>, uint16_t > m_enqueueLogger; |
+ TracedCallback<Ptr<const Packet>, uint16_t > m_dequeueLogger; |
+ |
+ // Mac parameters |
+ uint32_t m_cw; |
+ Time m_slotTime; |
+ |
+ // State variables |
+ Time m_sendTime; |
+ Time m_savedDelayS; |
+ Ptr<Packet> m_pktTx; |
+ uint16_t m_pktTxProt; |
+ EventId m_sendEvent; |
+ EventId m_txEndEvent; |
+ State m_state; |
+ |
+ void PhyRxPacketGood (Ptr<Packet> packet, double sinr, UanTxMode mode); |
+ void PhyRxPacketError (Ptr<Packet> packet, double sinr); |
+ void SaveTimer (void); |
+ void StartTimer (void); |
+ void SendPacket (void); |
+ void EndTx (void); |
+protected: |
+ virtual void DoDispose (); |
+}; |
+ |
+} |
+ |
+#endif // UANMACCW_H |