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trace-fading-loss-model.h
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1 /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
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: Giuseppe Piro <g.piro@poliba.it>
19  * Marco Miozzo <mmiozzo@cttc.es>
20  */
21 
22 
23 #ifndef TRACE_FADING_LOSS_MODEL_H
24 #define TRACE_FADING_LOSS_MODEL_H
25 
26 
27 #include <ns3/object.h>
28 #include <ns3/spectrum-propagation-loss-model.h>
29 #include <map>
30 #include "ns3/random-variable-stream.h"
31 #include <ns3/nstime.h>
32 
33 namespace ns3 {
34 
35 
36 class MobilityModel;
37 
38 
44 class TraceFadingLossModel : public SpectrumPropagationLossModel
45 {
46 public:
47  TraceFadingLossModel ();
48  virtual ~TraceFadingLossModel ();
49 
50  static TypeId GetTypeId ();
51 
52  virtual void DoStart (void);
53 
57  typedef std::pair<Ptr<const MobilityModel>, Ptr<const MobilityModel> > ChannelRealizationId_t;
58 
67  int64_t AssignStreams (int64_t stream);
68 
69 
70 private:
81  Ptr<SpectrumValue> DoCalcRxPowerSpectralDensity (Ptr<const SpectrumValue> txPsd,
82  Ptr<const MobilityModel> a,
83  Ptr<const MobilityModel> b) const;
84 
91  double GetValue (int subChannel, double speed);
92 
93  void SetTraceFileName (std::string fileName);
94  void SetTraceLength (Time t);
95 
96  void LoadTrace ();
97 
98 
99 
100  mutable std::map <ChannelRealizationId_t, int > m_windowOffsetsMap;
101 
102  mutable std::map <ChannelRealizationId_t, Ptr<UniformRandomVariable> > m_startVariableMap;
103 
107  typedef std::vector<double> FadingTraceSample;
111  typedef std::vector<FadingTraceSample> FadingTrace;
112 
113 
114 
115  std::string m_traceFile;
116 
117  FadingTrace m_fadingTrace;
118 
119 
120  Time m_traceLength;
121  uint32_t m_samplesNum;
122  Time m_windowSize;
123  uint8_t m_rbNum;
124  mutable Time m_lastWindowUpdate;
125  uint8_t m_timeGranularity;
126 
127 };
128 
129 
130 
131 } // namespace ns3
132 
133 #endif /* TRACE_FADING_LOSS_MODEL_H */