A Discrete-Event Network Simulator
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error-rate-model.cc
Go to the documentation of this file.
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2005,2006 INRIA
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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#include "
error-rate-model.h
"
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namespace
ns3 {
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NS_OBJECT_ENSURE_REGISTERED
(ErrorRateModel)
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;
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TypeId
ErrorRateModel::GetTypeId
(
void
)
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{
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static
TypeId
tid =
TypeId
(
"ns3::ErrorRateModel"
)
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.
SetParent
<
Object
> ()
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;
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return
tid;
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}
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double
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ErrorRateModel::CalculateSnr
(
WifiMode
txMode,
double
ber)
const
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{
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// This is a very simple binary search.
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double
low, high, precision;
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low = 1e-25;
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high = 1e25;
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precision = 1e-12;
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while
(high - low > precision)
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{
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NS_ASSERT
(high >= low);
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double
middle = low + (high - low) / 2;
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if
((1 -
GetChunkSuccessRate
(txMode, middle, 1)) > ber)
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{
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low = middle;
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}
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else
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{
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high = middle;
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}
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}
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return
low;
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}
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}
// namespace ns3
ns3::ErrorRateModel::GetTypeId
static TypeId GetTypeId(void)
Definition:
error-rate-model.cc:27
NS_ASSERT
#define NS_ASSERT(condition)
Definition:
assert.h:64
ns3::NS_OBJECT_ENSURE_REGISTERED
NS_OBJECT_ENSURE_REGISTERED(NullMessageSimulatorImpl)
ns3::WifiMode
represent a single transmission modeA WifiMode is implemented by a single integer which is used to lo...
Definition:
wifi-mode.h:91
error-rate-model.h
ns3::ErrorRateModel::GetChunkSuccessRate
virtual double GetChunkSuccessRate(WifiMode mode, double snr, uint32_t nbits) const =0
A pure virtual method that must be implemented in the subclass.
ns3::Object
a base class which provides memory management and object aggregation
Definition:
object.h:63
ns3::TypeId
a unique identifier for an interface.
Definition:
type-id.h:49
ns3::TypeId::SetParent
TypeId SetParent(TypeId tid)
Definition:
type-id.cc:611
ns3::ErrorRateModel::CalculateSnr
double CalculateSnr(WifiMode txMode, double ber) const
Definition:
error-rate-model.cc:36
src
wifi
model
error-rate-model.cc
Generated on Sat Apr 19 2014 14:07:11 for ns-3 by
1.8.6