00001 /********************************************/ 00002 /* NS2 Simulator for IEEE 802.15.4 */ 00003 /* (per P802.15.4/D18) */ 00004 /*------------------------------------------*/ 00005 /* by: Jianliang Zheng */ 00006 /* (zheng@ee.ccny.cuny.edu) */ 00007 /* Myung J. Lee */ 00008 /* (lee@ccny.cuny.edu) */ 00009 /* ~~~~~~~~~~~~~~~~~~~~~~~~~ */ 00010 /* SAIT-CUNY Joint Lab */ 00011 /********************************************/ 00012 00013 // File: p802_15_4csmaca.h 00014 // Mode: C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t 00015 00016 // $Header: /cvsroot/nsnam/ns-2/wpan/p802_15_4csmaca.h,v 1.2 2007/01/30 05:00:52 tom_henderson Exp $ 00017 00018 /* 00019 * Copyright (c) 2003-2004 Samsung Advanced Institute of Technology and 00020 * The City University of New York. All rights reserved. 00021 * 00022 * Redistribution and use in source and binary forms, with or without 00023 * modification, are permitted provided that the following conditions 00024 * are met: 00025 * 1. Redistributions of source code must retain the above copyright 00026 * notice, this list of conditions and the following disclaimer. 00027 * 2. Redistributions in binary form must reproduce the above copyright 00028 * notice, this list of conditions and the following disclaimer in the 00029 * documentation and/or other materials provided with the distribution. 00030 * 3. All advertising materials mentioning features or use of this software 00031 * must display the following acknowledgement: 00032 * This product includes software developed by the Joint Lab of Samsung 00033 * Advanced Institute of Technology and The City University of New York. 00034 * 4. Neither the name of Samsung Advanced Institute of Technology nor of 00035 * The City University of New York may be used to endorse or promote 00036 * products derived from this software without specific prior written 00037 * permission. 00038 * 00039 * THIS SOFTWARE IS PROVIDED BY THE JOINT LAB OF SAMSUNG ADVANCED INSTITUTE 00040 * OF TECHNOLOGY AND THE CITY UNIVERSITY OF NEW YORK ``AS IS'' AND ANY EXPRESS 00041 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00042 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00043 * NO EVENT SHALL SAMSUNG ADVANCED INSTITUTE OR THE CITY UNIVERSITY OF NEW YORK 00044 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00045 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 00046 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00047 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00048 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 00049 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00050 */ 00051 00052 00053 #ifndef p802_15_4csmaca_h 00054 #define p802_15_4csmaca_h 00055 00056 #include "p802_15_4timer.h" 00057 #include "p802_15_4phy.h" 00058 #include "p802_15_4mac.h" 00059 00060 00061 class CsmaCA802_15_4 00062 { 00063 friend class macBackoffTimer; 00064 friend class macWakeupTimer; //2.31 change: Timer to control node shutdown and wakeup 00065 friend class macBeaconOtherTimer; 00066 friend class macDeferCCATimer; 00067 friend class Mac802_15_4; 00068 public: 00069 CsmaCA802_15_4(Phy802_15_4 *p, Mac802_15_4 *m); 00070 ~CsmaCA802_15_4(); 00071 00072 protected: 00073 void reset(void); 00074 double adjustTime(double wtime); 00075 bool canProceed(double wtime, bool afterCCA = false); 00076 void newBeacon(char trx); 00077 void start(bool firsttime,Packet *pkt = 0,bool ackreq = 0); 00078 void cancel(void); 00079 void backoffHandler(void); 00080 void RX_ON_confirm(PHYenum status); 00081 void bcnOtherHandler(void); 00082 void deferCCAHandler(void); 00083 void CCA_confirm(PHYenum status); 00084 00085 private: 00086 //timers 00087 macBackoffTimer *backoffT; 00088 macBeaconOtherTimer *bcnOtherT; 00089 macDeferCCATimer *deferCCAT; 00090 00091 Phy802_15_4 *phy; 00092 Mac802_15_4 *mac; 00093 UINT_8 NB; 00094 UINT_8 CW; 00095 UINT_8 BE; 00096 00097 bool ackReq; 00098 bool beaconEnabled,beaconOther; 00099 bool waitNextBeacon; 00100 double bcnTxTime,bcnRxTime; 00101 double bPeriod; //backoff periods 00102 int bPeriodsLeft; //backoff periods left for next superframe (negative value means no backoff) 00103 Packet *txPkt; 00104 }; 00105 00106 #endif 00107 00108 // End of file: p802_15_4csmaca.h
1.7.1