/*									tab:4 * Copyright (c) 2003 the University of Southern California. * All rights reserved. * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose, without fee, and without written agreement is * hereby granted, provided that the above copyright notice and the following * two paragraphs appear in all copies of this software. * * IN NO EVENT SHALL THE UNIVERSITY OF SOUTHERN CALIFORNIA BE LIABLE TO ANY * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE * UNIVERSITY OF SOUTHERN CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * THE UNIVERSITY OF SOUTHERN CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF SOUTHERN CALIFORNIA HAS NO * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR * MODIFICATIONS. * * Authors:	Wei Ye * Date created: 5/2003 */* Physical layer parameters for S-MAC *------------------------------------- * Based on the parameters from PHY_RADIO and RADIO_CONTROL * BANDWIDTH: bandwidth (bit rate) in kbps. Not directly used. * LISTEN_RATE: sampling rate of radio in listen mode (carrier sense) * PRE_PKT_BYTES: number of extra bytes transmitted before each pkt. It equals *   preamble + start symbol + sync bytes. * ENCODE_RATIO: output/input ratio of the number of bytes of the encoding *  scheme. In Manchester encoding, 1-byte input generates 2-byte output. * PROC_DELAY: processing delay of each packet in physical and MAC layer, in ms */#ifndef PHY_CONST#define PHY_CONST#define BANDWIDTH 38#define LISTEN_RATE 19#define PRE_PKT_BYTES 40#define ENCODE_RATIO 2#define PROC_DELAY 1#define TX_TRANSITION_TIME 1#endif