A Discrete-Event Network Simulator
Home
Tutorials ▼
English
Portuguese
Docs ▼
Wiki
Manual
Models
Develop ▼
API
Bugs
API
Main Page
Related Pages
Modules
Namespaces
Classes
Files
File List
All
Classes
Namespaces
Files
Functions
Variables
Typedefs
Enumerations
Enumerator
Friends
Groups
Pages
error-rate-model.cc
1
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2
/*
3
* Copyright (c) 2005,2006 INRIA
4
*
5
* This program is free software; you can redistribute it and/or modify
6
* it under the terms of the GNU General Public License version 2 as
7
* published by the Free Software Foundation;
8
*
9
* This program is distributed in the hope that it will be useful,
10
* but WITHOUT ANY WARRANTY; without even the implied warranty of
11
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12
* GNU General Public License for more details.
13
*
14
* You should have received a copy of the GNU General Public License
15
* along with this program; if not, write to the Free Software
16
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
*
18
* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
19
*/
20
#include "error-rate-model.h"
21
22
namespace
ns3 {
23
24
NS_OBJECT_ENSURE_REGISTERED (ErrorRateModel);
25
26
TypeId ErrorRateModel::GetTypeId (
void
)
27
{
28
static
TypeId tid = TypeId (
"ns3::ErrorRateModel"
)
29
.SetParent<Object> ()
30
;
31
return
tid;
32
}
33
34
double
35
ErrorRateModel::CalculateSnr
(
WifiMode
txMode,
double
ber)
const
36
{
37
// This is a very simple binary search.
38
double
low, high, precision;
39
low = 1e-25;
40
high = 1e25;
41
precision = 1e-12;
42
while
(high - low > precision)
43
{
44
NS_ASSERT
(high >= low);
45
double
middle = low + (high - low) / 2;
46
if
((1 - GetChunkSuccessRate (txMode, middle, 1)) > ber)
47
{
48
low = middle;
49
}
50
else
51
{
52
high = middle;
53
}
54
}
55
return
low;
56
}
57
58
}
// namespace ns3
NS_ASSERT
#define NS_ASSERT(condition)
Definition:
assert.h:64
ns3::WifiMode
represent a single transmission modeA WifiMode is implemented by a single integer which is used to lo...
Definition:
wifi-mode.h:88
ns3::ErrorRateModel::CalculateSnr
double CalculateSnr(WifiMode txMode, double ber) const
Definition:
error-rate-model.cc:35
src
wifi
model
error-rate-model.cc
Generated on Sun Mar 16 2014 11:25:11 for ns-3 by
1.8.6