/usr/include/ns3/yans-error-rate-model.h is in libns3-dev 3.13+dfsg-1.
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/*
* Copyright (c) 2005,2006 INRIA
*
* 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
*/
#ifndef YANS_ERROR_RATE_MODEL_H
#define YANS_ERROR_RATE_MODEL_H
#include <stdint.h>
#include "wifi-mode.h"
#include "error-rate-model.h"
#include "dsss-error-rate-model.h"
namespace ns3 {
/**
* \brief Model the error rate for different modulations.
* \ingroup wifi
*
* A packet of interest (e.g., a packet can potentially be received by the MAC)
* is divided into chunks. Each chunk is related to an start/end receiving event.
* For each chunk, it calculates the ratio (SINR) between received power of packet
* of interest and summation of noise and interfering power of all the other incoming
* packets. Then, it will calculate the success rate of the chunk based on
* BER of the modulation. The success reception rate of the packet is derived from
* the success rate of all chunks.
*
* The 802.11b modulations:
* - 1 Mbps mode is based on DBPSK. BER is from equation 5.2-69 from John G. Proakis
* Digitial Communications, 2001 edition
* - 2 Mbps model is based on DQPSK. Equation 8 from "Tight bounds and accurate
* approximations for dqpsk transmission bit error rate", G. Ferrari and G.E. Corazza
* ELECTRONICS LETTERS, 40(20):1284-1285, September 2004
* - 5.5 Mbps and 11 Mbps are based on equations (18) and (17) from "Properties and
* performance of the ieee 802.11b complementarycode-key signal sets",
* Michael B. Pursley and Thomas C. Royster. IEEE TRANSACTIONS ON COMMUNICATIONS,
* 57(2):440-449, February 2009.
* - More detailed description and validation can be found in
* http://www.nsnam.org/~pei/80211b.pdf
*/
class YansErrorRateModel : public ErrorRateModel
{
public:
static TypeId GetTypeId (void);
YansErrorRateModel ();
virtual double GetChunkSuccessRate (WifiMode mode, double snr, uint32_t nbits) const;
private:
double Log2 (double val) const;
double GetBpskBer (double snr, uint32_t signalSpread, uint32_t phyRate) const;
double GetQamBer (double snr, unsigned int m, uint32_t signalSpread, uint32_t phyRate) const;
uint32_t Factorial (uint32_t k) const;
double Binomial (uint32_t k, double p, uint32_t n) const;
double CalculatePdOdd (double ber, unsigned int d) const;
double CalculatePdEven (double ber, unsigned int d) const;
double CalculatePd (double ber, unsigned int d) const;
double GetFecBpskBer (double snr, double nbits,
uint32_t signalSpread, uint32_t phyRate,
uint32_t dFree, uint32_t adFree) const;
double GetFecQamBer (double snr, uint32_t nbits,
uint32_t signalSpread,
uint32_t phyRate,
uint32_t m, uint32_t dfree,
uint32_t adFree, uint32_t adFreePlusOne) const;
};
} // namespace ns3
#endif /* YANS_ERROR_RATE_MODEL_H */
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