tworayground.h
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- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Copyright (c) 1997 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the Computer Systems
- * Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- /* Ported from CMU/Monarch's code, nov'98 -Padma.
- * tworayground.h
- */
- #ifndef __tworayground_h__
- #define __tworayground_h__
- #include <packet-stamp.h>
- #include <wireless-phy.h>
- #include <propagation.h>
- class TwoRayGround : public Propagation {
- public:
- TwoRayGround();
- virtual double Pr(PacketStamp *tx, PacketStamp *rx, WirelessPhy *ifp);
- virtual double getDist(double Pr, double Pt, double Gt, double Gr,
- double hr, double ht, double L, double lambda);
- protected:
- double TwoRay(double Pt, double Gt, double Gr, double ht, double hr, double L, double d);
- double last_hr, last_ht;
- double crossover_dist;
- };
- #endif /* __tworayground_h__ */