1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*******************************************************************************
* This file is part of openWNS (open Wireless Network Simulator)
* _____________________________________________________________________________
*
* Copyright (C) 2004-2007
* Chair of Communication Networks (ComNets)
* Kopernikusstr. 5, D-52074 Aachen, Germany
* phone: ++49-241-80-27910,
* fax: ++49-241-80-22242
* email: info@openwns.org
* www: http://www.openwns.org
* _____________________________________________________________________________
*
* openWNS is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License version 2 as published by the
* Free Software Foundation;
*
* openWNS 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/
#ifndef RISE_SCENARIO_PATHLOSS_ITUPATHLOSS_HPP
#define RISE_SCENARIO_PATHLOSS_ITUPATHLOSS_HPP
#include <RISE/scenario/pathloss/DistanceDependent.hpp>
#include <RISE/scenario/pathloss/ILoSDependent.hpp>
#include <WNS/probe/bus/ContextCollector.hpp>
#include <WNS/distribution/Uniform.hpp>
#include <RISE/scenario/pathloss/HashRNG.hpp>
namespace rise { namespace scenario { namespace pathloss {
/**
* @ ITUPathloss chooses the LOS/NLOS pathloss and shadowing models
* according to a distance-dependent probability.
*
* In ITU-R M.2135 (IMT.EVAL) pp. 31 the probability distributions
* for each scenario are given.
*
* This class implements a semi-random probabilistic pathloss distribution
* by hashing the position of the two antennas and the distance between them.
* These hashes have random number properties and are then used to determine
* the LOS/NLOS model and the log-normal shadowing component.
*
* Using hashes makes it possible to imlement the ITU-R models without
* any memory overhead. At the time of writing this model is able to calculate
* ~ 16250 pathloss values per second.
*
* Usage:
*
* This model is a base for all ITU-R specific pathloss for the ITU-R scenarios.
* The resulting models however, may all be used as any other RISE pathloss model.
*
* @author Daniel Bueltmann <openwns@doender.de>
*/
class ITUPathloss:
public rise::scenario::pathloss::DistanceDependent,
public rise::scenario::pathloss::ILoSDependent
{
public:
ITUPathloss(const wns::pyconfig::View&);
virtual ~ITUPathloss() {}
virtual wns::Ratio
calculatePathloss(const rise::antenna::Antenna& source,
const rise::antenna::Antenna& target,
const wns::Frequency& frequency,
const wns::Distance& distance) const;
virtual bool
isLoS(const rise::antenna::Antenna& source,
const rise::antenna::Antenna& target,
const wns::Distance& distance) const;
/**
* @brief Return the probability of LOS pathlos at distance distance
*/
virtual double
getLOSProbability(double distance) const = 0;
/**
* @brief Return the LOS pathloss according to your specific model
*/
virtual wns::Ratio
getLOSPathloss(const rise::antenna::Antenna& source,
const rise::antenna::Antenna& target,
const wns::Frequency& frequency,
const wns::Distance& distance) const = 0;
/**
* @brief Return the NLOS pathloss according to your specific model
*/
virtual wns::Ratio
getNLOSPathloss(const rise::antenna::Antenna& source,
const rise::antenna::Antenna& target,
const wns::Frequency& frequency,
const wns::Distance& distance) const = 0;
/**
* @brief Return a realization of the shadowing in LOS case. This may be distance dependent
*/
virtual double
getLOSShadowingStd(const rise::antenna::Antenna& source,
const rise::antenna::Antenna& target,
const wns::Frequency& frequency,
const wns::Distance& distance) const = 0;
/**
* @brief Return a realization of the shadowing in NLOS case. This may be distance dependent
*/
virtual double
getNLOSShadowingStd(const rise::antenna::Antenna& source,
const rise::antenna::Antenna& target,
const wns::Frequency& frequency,
const wns::Distance& distance) const = 0;
virtual double
getCarPenetrationStd() const = 0;
virtual double
getCarPenetrationMean() const = 0;
private:
wns::probe::bus::ContextCollector losProbabilityCC_;
wns::probe::bus::ContextCollector shadowingCC_;
bool useShadowing_;
bool useCarPenetration_;
unsigned int
getInitialSeed() const;
};
} // pathloss
} // scenario
} // rise
#endif // RISE_SCENARIO_PATHLOSS_ITUPathloss_HPP
|