A Discrete-Event Network Simulator
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two-ray-spectrum-propagation-loss-model.cc
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1/*
2 * Copyright (c) 2022 SIGNET Lab, Department of Information Engineering,
3 * University of Padova
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 */
19
20#include "two-ray-spectrum-propagation-loss-model.h"
21
22#include <ns3/double.h>
23#include <ns3/log.h>
24#include <ns3/node.h>
25#include <ns3/object-factory.h>
26#include <ns3/pointer.h>
27#include <ns3/random-variable-stream.h>
28#include <ns3/string.h>
29
30#include <algorithm>
31
32namespace ns3
33{
34
39static const TwoRaySpectrumPropagationLossModel::FtrParamsLookupTable
40 SIM_PARAMS_TO_FTR_PARAMS_TABLE = {
41 {"InH-OfficeOpen",
42 {{ChannelCondition::LosConditionValue::NLOS,
43 {{500000000.0, 5500000000.0, 10500000000.0, 15500000000.0, 20500000000.0,
44 25500000000.0, 30500000000.0, 35500000000.0, 40500000000.0, 45500000000.0,
45 50500000000.0, 55500000000.0, 60500000000.0, 65500000000.0, 70500000000.0,
46 75500000000.0, 80500000000.0, 85500000000.0, 90500000000.0, 95500000000.0},
47 {TwoRaySpectrumPropagationLossModel::FtrParams(1.2695458989293662e+01,
48 3.081006083786e-03,
49 1.6128465196199136e+02,
50 2.7586206896551727e-05),
51 TwoRaySpectrumPropagationLossModel::FtrParams(9.253444859420023e+00,
52 6.334753732969e-04,
53 7.882966657847448e+02,
54 3.4482758620689657e-05),
55 TwoRaySpectrumPropagationLossModel::FtrParams(9.2440475852275e+00,
56 8.688106642961e-04,
57 5.744993815655636e+02,
58 1.3793103448275863e-05),
59 TwoRaySpectrumPropagationLossModel::FtrParams(9.249919762622172e+00,
60 4.2221674779498e-03,
61 1.1742258806909902e+02,
62 3.4482758620689657e-05),
63 TwoRaySpectrumPropagationLossModel::FtrParams(9.25697129961412e+00,
64 4.2211041740365e-03,
65 1.174524189370726e+02,
66 6.896551724137931e-05),
67 TwoRaySpectrumPropagationLossModel::FtrParams(9.2440475852275e+00,
68 5.7752786216822e-03,
69 8.557590962327636e+01,
70 1.724137931034e-04),
71 TwoRaySpectrumPropagationLossModel::FtrParams(9.251094645653469e+00,
72 5.7927052949143e-03,
73 8.53154561719156e+01,
74 1.36482758620689e-02),
75 TwoRaySpectrumPropagationLossModel::FtrParams(6.724107824633563e+00,
76 1.295909468305e-04,
77 3.8572942113521017e+03,
78 6.9862068965517e-03),
79 TwoRaySpectrumPropagationLossModel::FtrParams(6.737785902809381e+00,
80 2.44090689375e-04,
81 2.047418976079014e+03,
82 6.206896551724138e-05),
83 TwoRaySpectrumPropagationLossModel::FtrParams(6.733508517158048e+00,
84 5.006171052321396e-05,
85 9.98667310933466e+03,
86 1.310344827586e-04),
87 TwoRaySpectrumPropagationLossModel::FtrParams(6.742066005621902e+00,
88 9.428291321439076e-05,
89 5.302187851896829e+03,
90 1.03448275862e-04),
91 TwoRaySpectrumPropagationLossModel::FtrParams(6.748062717676833e+00,
92 2.446180232004e-04,
93 2.0430031092487088e+03,
94 6.8896551724137e-03),
95 TwoRaySpectrumPropagationLossModel::FtrParams(6.737785902809381e+00,
96 1.6399062365392e-03,
97 3.0389548052160666e+02,
98 8.965517241379312e-05),
99 TwoRaySpectrumPropagationLossModel::FtrParams(6.735219145469659e+00,
100 1.296074026206e-04,
101 3.856804337484282e+03,
102 1.172413793103e-04),
103 TwoRaySpectrumPropagationLossModel::FtrParams(6.736930208361434e+00,
104 1.294265037695e-04,
105 3.862196373520788e+03,
106 6.6965517241379e-03),
107 TwoRaySpectrumPropagationLossModel::FtrParams(6.727524738792882e+00,
108 3.354626304689e-04,
109 1.4894789821180611e+03,
110 1.51724137931e-04),
111 TwoRaySpectrumPropagationLossModel::FtrParams(9.26520488726192e+00,
112 1.07946501149867e-02,
113 4.531924098269983e+01,
114 6.206896551724138e-05),
115 TwoRaySpectrumPropagationLossModel::FtrParams(6.736074622586126e+00,
116 2.2451744578083e-03,
117 2.2169984332891184e+02,
118 7.0965517241379e-03),
119 TwoRaySpectrumPropagationLossModel::FtrParams(6.733508517158048e+00,
120 4.2274879823188e-03,
121 1.172735473385635e+02,
122 1.241379310344e-04),
123 TwoRaySpectrumPropagationLossModel::FtrParams(6.729233846942953e+00,
124 3.360165965941e-04,
125 1.487021737818881e+03,
126 6.896551724137932e-06)}}},
127 {ChannelCondition::LosConditionValue::LOS,
128 {{500000000.0, 5500000000.0, 10500000000.0, 15500000000.0, 20500000000.0,
129 25500000000.0, 30500000000.0, 35500000000.0, 40500000000.0, 45500000000.0,
130 50500000000.0, 55500000000.0, 60500000000.0, 65500000000.0, 70500000000.0,
131 75500000000.0, 80500000000.0, 85500000000.0, 90500000000.0, 95500000000.0},
132 {TwoRaySpectrumPropagationLossModel::FtrParams(6.221618627242562e+01,
133 5.7818075439484e-03,
134 8.547814653106583e+01,
135 1.310344827586e-04),
136 TwoRaySpectrumPropagationLossModel::FtrParams(6.222408869140862e+01,
137 5.7868906372814e-03,
138 8.540218579193503e+01,
139 1.931034482758e-04),
140 TwoRaySpectrumPropagationLossModel::FtrParams(1.1712469578065404e+02,
141 7.9044249538951e-03,
142 6.225570840591133e+01,
143 2.e-04),
144 TwoRaySpectrumPropagationLossModel::FtrParams(1.174524189370726e+02,
145 7.9192593798279e-03,
146 6.213721725968569e+01,
147 1.586206896551e-04),
148 TwoRaySpectrumPropagationLossModel::FtrParams(6.212932587331828e+01,
149 4.2317491714902e-03,
150 1.1715445096995552e+02,
151 1.03448275862e-04),
152 TwoRaySpectrumPropagationLossModel::FtrParams(5.74353468732457e+02,
153 7.9252008170168e-03,
154 6.208988397195024e+01,
155 5.517241379310345e-05),
156 TwoRaySpectrumPropagationLossModel::FtrParams(3.295678257898671e+01,
157 1.6409445497067e-03,
158 3.0370255688368803e+02,
159 1.448275862068e-04),
160 TwoRaySpectrumPropagationLossModel::FtrParams(1.1721398402813756e+02,
161 7.9222295504019e-03,
162 6.211354610705902e+01,
163 1.3793103448275863e-05),
164 TwoRaySpectrumPropagationLossModel::FtrParams(2.395445815898452e+01,
165 6.863706760298528e-05,
166 7.283693496699635e+03,
167 2.06896551724138e-05),
168 TwoRaySpectrumPropagationLossModel::FtrParams(6.220038444513843e+01,
169 5.7854378744067e-03,
170 8.542388196956914e+01,
171 1.3793103448275863e-05),
172 TwoRaySpectrumPropagationLossModel::FtrParams(3.293586044359225e+01,
173 2.246026238725e-03,
174 2.2161538684598275e+02,
175 1.724137931034e-04),
176 TwoRaySpectrumPropagationLossModel::FtrParams(4.534227035109218e+01,
177 4.2328151340042e-03,
178 1.1712469578065404e+02,
179 2.7586206896551727e-05),
180 TwoRaySpectrumPropagationLossModel::FtrParams(3.296096860066171e+01,
181 1.1934793291051e-03,
182 4.179431587180458e+02,
183 9.655172413793105e-05),
184 TwoRaySpectrumPropagationLossModel::FtrParams(2.395750074607037e+01,
185 4.990302323746383e-05,
186 1.0018433043580286e+04,
187 1.51724137931e-04),
188 TwoRaySpectrumPropagationLossModel::FtrParams(4.1831489711041263e+02,
189 7.926191482854e-03,
190 6.20819985968797e+01,
191 1.3793103448275863e-05),
192 TwoRaySpectrumPropagationLossModel::FtrParams(3.290659176610291e+01,
193 1.1937818051584e-03,
194 4.1783700843777945e+02,
195 1.448275862068e-04),
196 TwoRaySpectrumPropagationLossModel::FtrParams(4.176778335658431e+02,
197 7.926191482854e-03,
198 6.20819985968797e+01,
199 2.e-04),
200 TwoRaySpectrumPropagationLossModel::FtrParams(3.292331353831016e+01,
201 8.692513904904e-04,
202 5.742075929586678e+02,
203 1.3793103448275863e-05),
204 TwoRaySpectrumPropagationLossModel::FtrParams(2.21474697532092e+02,
205 7.9212393717809e-03,
206 6.212143548915179e+01,
207 6.206896551724138e-05),
208 TwoRaySpectrumPropagationLossModel::FtrParams(3.29902856434769e+01,
209 2.2511436839814e-03,
210 2.211093231666549e+02,
211 1.586206896551e-04)}}}}},
212 {"UMi-StreetCanyon",
213 {{ChannelCondition::LosConditionValue::NLOS,
214 {{500000000.0, 5500000000.0, 10500000000.0, 15500000000.0, 20500000000.0,
215 25500000000.0, 30500000000.0, 35500000000.0, 40500000000.0, 45500000000.0,
216 50500000000.0, 55500000000.0, 60500000000.0, 65500000000.0, 70500000000.0,
217 75500000000.0, 80500000000.0, 85500000000.0, 90500000000.0, 95500000000.0},
218 {TwoRaySpectrumPropagationLossModel::FtrParams(1.2689010957474556e+01,
219 3.36059247219e-04,
220 1.486832887020803e+03,
221 1.724137931034e-04),
222 TwoRaySpectrumPropagationLossModel::FtrParams(1.2734216047612705e+01,
223 8.70685292542e-04,
224 5.732603031000779e+02,
225 7.0551724137931e-03),
226 TwoRaySpectrumPropagationLossModel::FtrParams(1.2690622658336885e+01,
227 3.086065900037e-03,
228 1.6101857516847045e+02,
229 0.e+00),
230 TwoRaySpectrumPropagationLossModel::FtrParams(1.2711593407712735e+01,
231 3.0864554585433e-03,
232 1.6099812591365952e+02,
233 1.931034482758e-04),
234 TwoRaySpectrumPropagationLossModel::FtrParams(3.29902856434769e+01,
235 1.47463951390083e-02,
236 3.290659176610291e+01,
237 1.310344827586e-04),
238 TwoRaySpectrumPropagationLossModel::FtrParams(1.2718052915001302e+01,
239 3.0884039842316e-03,
240 1.6089591858864094e+02,
241 1.51724137931e-04),
242 TwoRaySpectrumPropagationLossModel::FtrParams(1.748207473187881e+01,
243 1.07973332444199e-02,
244 4.530773068511169e+01,
245 6.8068965517241e-03),
246 TwoRaySpectrumPropagationLossModel::FtrParams(9.255795670251574e+00,
247 5.00680684988557e-05,
248 9.985404808314654e+03,
249 6.9586206896551e-03),
250 TwoRaySpectrumPropagationLossModel::FtrParams(9.254620190193195e+00,
251 4.617679219256e-04,
252 1.0817950064503143e+03,
253 2.07655172413793e-02),
254 TwoRaySpectrumPropagationLossModel::FtrParams(1.7488737060551784e+01,
255 1.08201661923657e-02,
256 4.521001111357971e+01,
257 6.206896551724138e-05),
258 TwoRaySpectrumPropagationLossModel::FtrParams(9.264028212239072e+00,
259 2.445869720667e-04,
260 2.0432626022764905e+03,
261 1.655172413793e-04),
262 TwoRaySpectrumPropagationLossModel::FtrParams(9.251094645653469e+00,
263 1.295909468305e-04,
264 3.8572942113521017e+03,
265 1.655172413793e-04),
266 TwoRaySpectrumPropagationLossModel::FtrParams(9.261675310485298e+00,
267 6.868066254013259e-05,
268 7.27906954953051e+03,
269 1.103448275862e-04),
270 TwoRaySpectrumPropagationLossModel::FtrParams(9.242873597168312e+00,
271 2.443697244117e-04,
272 2.0450799765751449e+03,
273 1.241379310344e-04),
274 TwoRaySpectrumPropagationLossModel::FtrParams(9.264028212239072e+00,
275 6.329934316604e-04,
276 7.888976118731497e+02,
277 6.7241379310344e-03),
278 TwoRaySpectrumPropagationLossModel::FtrParams(9.2440475852275e+00,
279 5.0074427281897054e-05,
280 9.984136668368055e+03,
281 1.03448275862e-04),
282 TwoRaySpectrumPropagationLossModel::FtrParams(9.242873597168312e+00,
283 1.7827515329e-04,
284 2.80365331692424e+03,
285 6.206896551724138e-05),
286 TwoRaySpectrumPropagationLossModel::FtrParams(9.242873597168312e+00,
287 2.448665741566e-04,
288 2.040928351071028e+03,
289 1.37862068965517e-02),
290 TwoRaySpectrumPropagationLossModel::FtrParams(9.25697129961412e+00,
291 3.357181936422e-04,
292 1.4883443652113867e+03,
293 2.06896551724138e-05),
294 TwoRaySpectrumPropagationLossModel::FtrParams(9.262851686653192e+00,
295 2.2474465885176e-03,
296 2.21474697532092e+02,
297 1.379310344827e-04)}}},
298 {ChannelCondition::LosConditionValue::LOS,
299 {{500000000.0, 5500000000.0, 10500000000.0, 15500000000.0, 20500000000.0,
300 25500000000.0, 30500000000.0, 35500000000.0, 40500000000.0, 45500000000.0,
301 50500000000.0, 55500000000.0, 60500000000.0, 65500000000.0, 70500000000.0,
302 75500000000.0, 80500000000.0, 85500000000.0, 90500000000.0, 95500000000.0},
303 {TwoRaySpectrumPropagationLossModel::FtrParams(6.212932587331828e+01,
304 3.0821730014407e-03,
305 1.6122321062648754e+02,
306 0.e+00),
307 TwoRaySpectrumPropagationLossModel::FtrParams(3.290659176610291e+01,
308 1.297720754633e-04,
309 3.8519090192542544e+03,
310 7.586206896551724e-05),
311 TwoRaySpectrumPropagationLossModel::FtrParams(3.297771800493267e+01,
312 2.445559248725e-04,
313 2.0435221282639047e+03,
314 6.896551724137931e-05),
315 TwoRaySpectrumPropagationLossModel::FtrParams(3.295259708893377e+01,
316 1.77777895565e-04,
317 2.81149813657053e+03,
318 6.896551724137932e-06),
319 TwoRaySpectrumPropagationLossModel::FtrParams(4.5181310193778565e+01,
320 1.6374169558852e-03,
321 3.043589974153497e+02,
322 1.51724137931e-04),
323 TwoRaySpectrumPropagationLossModel::FtrParams(3.2965155154026256e+01,
324 6.879413898912483e-05,
325 7.267061020126167e+03,
326 6.206896551724138e-05),
327 TwoRaySpectrumPropagationLossModel::FtrParams(3.29902856434769e+01,
328 6.85760811693159e-05,
329 7.290171957835979e+03,
330 6.896551724137932e-06),
331 TwoRaySpectrumPropagationLossModel::FtrParams(3.295259708893377e+01,
332 1.77935963353e-04,
333 2.8089996795357683e+03,
334 8.965517241379312e-05),
335 TwoRaySpectrumPropagationLossModel::FtrParams(4.531348546843247e+01,
336 3.077119528339e-03,
337 1.614896255719667e+02,
338 6.896551724137932e-06),
339 TwoRaySpectrumPropagationLossModel::FtrParams(7.281843565459175e+03,
340 7.9123332420076e-03,
341 6.219248503657932e+01,
342 2.06896551724138e-05),
343 TwoRaySpectrumPropagationLossModel::FtrParams(3.8582741457603433e+03,
344 7.9143115301227e-03,
345 6.217668922899309e+01,
346 1.586206896551e-04),
347 TwoRaySpectrumPropagationLossModel::FtrParams(3.2948412130435365e+01,
348 1.294922559454e-04,
349 3.860234761488555e+03,
350 1.51724137931e-04),
351 TwoRaySpectrumPropagationLossModel::FtrParams(5.748643258446342e+02,
352 7.9143115301227e-03,
353 6.217668922899309e+01,
354 1.241379310344e-04),
355 TwoRaySpectrumPropagationLossModel::FtrParams(3.2965155154026256e+01,
356 1.779585559315e-04,
357 2.8086429383948757e+03,
358 1.586206896551e-04),
359 TwoRaySpectrumPropagationLossModel::FtrParams(6.215300303953259e+01,
360 3.0845081545813e-03,
361 1.6110039816473343e+02,
362 1.862068965517e-04),
363 TwoRaySpectrumPropagationLossModel::FtrParams(7.27814511240983e+03,
364 7.9073896501251e-03,
365 6.223199211412119e+01,
366 7.586206896551724e-05),
367 TwoRaySpectrumPropagationLossModel::FtrParams(3.299866672987281e+01,
368 1.779585559315e-04,
369 2.8086429383948757e+03,
370 4.137931034482759e-05),
371 TwoRaySpectrumPropagationLossModel::FtrParams(3.8553350891312034e+03,
372 7.9054130644305e-03,
373 6.224780197124505e+01,
374 1.241379310344e-04),
375 TwoRaySpectrumPropagationLossModel::FtrParams(3.292749530889876e+01,
376 3.362299038257e-04,
377 1.4860777236373208e+03,
378 6.206896551724138e-05),
379 TwoRaySpectrumPropagationLossModel::FtrParams(4.5284718859438e+01,
380 2.2451744578083e-03,
381 2.2169984332891184e+02,
382 1.448275862068e-04)}}}}},
383 {"InH-OfficeMixed",
384 {{ChannelCondition::LosConditionValue::NLOS,
385 {{500000000.0, 5500000000.0, 10500000000.0, 15500000000.0, 20500000000.0,
386 25500000000.0, 30500000000.0, 35500000000.0, 40500000000.0, 45500000000.0,
387 50500000000.0, 55500000000.0, 60500000000.0, 65500000000.0, 70500000000.0,
388 75500000000.0, 80500000000.0, 85500000000.0, 90500000000.0, 95500000000.0},
389 {TwoRaySpectrumPropagationLossModel::FtrParams(1.2726131915259918e+01,
390 4.2274879823188e-03,
391 1.172735473385635e+02,
392 1.793103448275e-04),
393 TwoRaySpectrumPropagationLossModel::FtrParams(9.251094645653469e+00,
394 1.6390760575064e-03,
395 3.040499076660591e+02,
396 1.931034482758e-04),
397 TwoRaySpectrumPropagationLossModel::FtrParams(9.261675310485298e+00,
398 8.70354182635e-04,
399 5.734787696501294e+02,
400 1.793103448275e-04),
401 TwoRaySpectrumPropagationLossModel::FtrParams(9.26520488726192e+00,
402 4.2211041740365e-03,
403 1.174524189370726e+02,
404 1.793103448275e-04),
405 TwoRaySpectrumPropagationLossModel::FtrParams(9.254620190193195e+00,
406 4.2179158550445e-03,
407 1.1754195701936764e+02,
408 1.586206896551e-04),
409 TwoRaySpectrumPropagationLossModel::FtrParams(9.254620190193195e+00,
410 4.2226992294898e-03,
411 1.1740767547642784e+02,
412 6.7379310344827e-03),
413 TwoRaySpectrumPropagationLossModel::FtrParams(6.731798323316221e+00,
414 9.44506754620425e-05,
415 5.292768388146024e+03,
416 1.03448275862e-04),
417 TwoRaySpectrumPropagationLossModel::FtrParams(9.245221722401345e+00,
418 5.77890490064e-03,
419 8.55215829982986e+01,
420 1.51724137931e-04),
421 TwoRaySpectrumPropagationLossModel::FtrParams(6.7258160647265015e+00,
422 6.329131436638e-04,
423 7.889978140847802e+02,
424 6.8344827586206e-03),
425 TwoRaySpectrumPropagationLossModel::FtrParams(6.724107824633563e+00,
426 8.691411880231e-04,
427 5.74280526213736e+02,
428 6.896551724137931e-05),
429 TwoRaySpectrumPropagationLossModel::FtrParams(6.736930208361434e+00,
430 2.448976607693e-04,
431 2.0406691544916384e+03,
432 1.37310344827586e-02),
433 TwoRaySpectrumPropagationLossModel::FtrParams(6.731798323316221e+00,
434 8.682600702285e-04,
435 5.748643258446342e+02,
436 1.793103448275e-04),
437 TwoRaySpectrumPropagationLossModel::FtrParams(6.737785902809381e+00,
438 1.6407368346666e-03,
439 3.03741131810801e+02,
440 1.724137931034e-04),
441 TwoRaySpectrumPropagationLossModel::FtrParams(6.736930208361434e+00,
442 1.77935963353e-04,
443 2.8089996795357683e+03,
444 1.03448275862e-04),
445 TwoRaySpectrumPropagationLossModel::FtrParams(9.23935252748936e+00,
446 7.910355440443e-03,
447 6.22082848570447e+01,
448 6.7379310344827e-03),
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554 {"RMa",
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725 {"UMa",
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874 2.2136221039019213e+02,
875 1.448275862068e-04),
876 TwoRaySpectrumPropagationLossModel::FtrParams(6.206623085092408e+01,
877 5.7803560422275e-03,
878 8.549986200630548e+01,
879 1.931034482758e-04),
880 TwoRaySpectrumPropagationLossModel::FtrParams(1.1713957243052236e+02,
881 7.9153008566728e-03,
882 6.216879282971112e+01,
883 4.827586206896552e-05),
884 TwoRaySpectrumPropagationLossModel::FtrParams(2.4024535522229847e+01,
885 6.325118562159e-04,
886 7.894990160837534e+02,
887 1.448275862068e-04),
888 TwoRaySpectrumPropagationLossModel::FtrParams(2.394229167421632e+01,
889 1.778907867973e-04,
890 2.809713297758256e+03,
891 8.275862068965519e-05),
892 TwoRaySpectrumPropagationLossModel::FtrParams(3.2910771412767524e+01,
893 2.2474465885176e-03,
894 2.21474697532092e+02,
895 7.586206896551724e-05)}}}}},
896};
897
898NS_LOG_COMPONENT_DEFINE("TwoRaySpectrumPropagationLossModel");
899
900NS_OBJECT_ENSURE_REGISTERED(TwoRaySpectrumPropagationLossModel);
901
902TwoRaySpectrumPropagationLossModel::TwoRaySpectrumPropagationLossModel()
903{
904 NS_LOG_FUNCTION(this);
905
906 // Create the Random Number Generator (RNG) variables only once to speed-up the tests
907 m_uniformRv = CreateObject<UniformRandomVariable>();
908 m_uniformRv->SetAttribute("Min", DoubleValue(0));
909 m_uniformRv->SetAttribute("Max", DoubleValue(2 * M_PI));
910
911 m_normalRv = CreateObject<NormalRandomVariable>();
912 m_normalRv->SetAttribute("Mean", DoubleValue(0));
913
914 m_gammaRv = CreateObject<GammaRandomVariable>();
915}
916
917TwoRaySpectrumPropagationLossModel::~TwoRaySpectrumPropagationLossModel()
918{
919 NS_LOG_FUNCTION(this);
920
921 m_uniformRv = nullptr;
922 m_normalRv = nullptr;
923 m_gammaRv = nullptr;
924}
925
926void
927TwoRaySpectrumPropagationLossModel::DoDispose()
928{
929}
930
931TypeId
932TwoRaySpectrumPropagationLossModel::GetTypeId()
933{
934 static TypeId tid =
935 TypeId("ns3::TwoRaySpectrumPropagationLossModel")
936 .SetParent<PhasedArraySpectrumPropagationLossModel>()
937 .SetGroupName("Spectrum")
938 .AddConstructor<TwoRaySpectrumPropagationLossModel>()
939 .AddAttribute(
940 "ChannelConditionModel",
941 "Pointer to the channel condition model.",
942 PointerValue(),
943 MakePointerAccessor(&TwoRaySpectrumPropagationLossModel::m_channelConditionModel),
944 MakePointerChecker<ChannelConditionModel>())
945 .AddAttribute(
946 "Scenario",
947 "The 3GPP scenario (RMa, UMa, UMi-StreetCanyon, InH-OfficeOpen, InH-OfficeMixed).",
948 StringValue("RMa"),
949 MakeStringAccessor(&TwoRaySpectrumPropagationLossModel::SetScenario),
950 MakeStringChecker())
951 .AddAttribute("Frequency",
952 "The operating Frequency in Hz",
953 DoubleValue(500.0e6),
954 MakeDoubleAccessor(&TwoRaySpectrumPropagationLossModel::SetFrequency),
955 MakeDoubleChecker<double>());
956 return tid;
957}
958
959void
960TwoRaySpectrumPropagationLossModel::SetScenario(const std::string& scenario)
961{
962 NS_LOG_FUNCTION(this);
963 if (scenario != "RMa" && scenario != "UMa" && scenario != "UMi-StreetCanyon" &&
964 scenario != "InH-OfficeOpen" && scenario != "InH-OfficeMixed" && scenario != "V2V-Urban" &&
965 scenario != "V2V-Highway")
966 {
967 NS_ABORT_MSG("Unknown scenario (" + scenario +
968 "), choose between: RMa, UMa, UMi-StreetCanyon, "
969 "InH-OfficeOpen, InH-OfficeMixed, V2V-Urban or V2V-Highway");
970 }
971
972 if (SIM_PARAMS_TO_FTR_PARAMS_TABLE.find(scenario) == SIM_PARAMS_TO_FTR_PARAMS_TABLE.end())
973 {
974 NS_ABORT_MSG("The specified scenario has not been calibrated yet.");
975 }
976
977 m_scenario = scenario;
978}
979
980void
981TwoRaySpectrumPropagationLossModel::SetFrequency(double f)
982{
983 NS_LOG_FUNCTION(this);
984 NS_ASSERT_MSG(f >= 500.0e6 && f <= 100.0e9,
985 "Frequency should be between 0.5 and 100 GHz but is " << f);
986 m_frequency = f;
987}
988
989ChannelCondition::LosConditionValue
990TwoRaySpectrumPropagationLossModel::GetLosCondition(Ptr<const MobilityModel> a,
991 Ptr<const MobilityModel> b) const
992{
993 NS_LOG_FUNCTION(this);
994
995 NS_ASSERT(m_channelConditionModel);
996 auto cond = m_channelConditionModel->GetChannelCondition(a, b);
997
998 return cond->GetLosCondition();
999}
1000
1001TwoRaySpectrumPropagationLossModel::FtrParams
1002TwoRaySpectrumPropagationLossModel::GetFtrParameters(Ptr<const MobilityModel> a,
1003 Ptr<const MobilityModel> b) const
1004{
1005 NS_LOG_FUNCTION(this);
1006
1007 // Retrieve LOS condition
1008 ChannelCondition::LosConditionValue cond = GetLosCondition(a, b);
1009
1010 // Retrieve the corresponding tuple and vectors
1011 NS_ASSERT_MSG(SIM_PARAMS_TO_FTR_PARAMS_TABLE.find(m_scenario)->second.find(cond) !=
1012 SIM_PARAMS_TO_FTR_PARAMS_TABLE.find(m_scenario)->second.end(),
1013 "The specified scenario and channel condition are not supported");
1014 auto scenAndCondTuple = SIM_PARAMS_TO_FTR_PARAMS_TABLE.find(m_scenario)->second.find(cond);
1015
1016 // Get references to the corresponding vectors
1017 auto& fcVec = std::get<0>(scenAndCondTuple->second);
1018 auto& ftrParamsVec = std::get<1>(scenAndCondTuple->second);
1019
1020 // Find closest carrier frequency which has been calibrated
1021 auto idxOfClosestFc = SearchClosestFc(fcVec, m_frequency);
1022
1023 // Retrieve the corresponding FTR parameters
1024 NS_ASSERT(ftrParamsVec.size() >= idxOfClosestFc && idxOfClosestFc >= 0);
1025 FtrParams params = ftrParamsVec[idxOfClosestFc];
1026
1027 return params;
1028}
1029
1030double
1031TwoRaySpectrumPropagationLossModel::CalcBeamformingGain(
1032 Ptr<const MobilityModel> a,
1033 Ptr<const MobilityModel> b,
1034 Ptr<const PhasedArrayModel> aPhasedArrayModel,
1035 Ptr<const PhasedArrayModel> bPhasedArrayModel) const
1036{
1037 NS_LOG_FUNCTION(this);
1038
1039 // Get the relative angles between tx and rx phased arrays
1040 Angles aAngle(b->GetPosition(), a->GetPosition());
1041 Angles bAngle(a->GetPosition(), b->GetPosition());
1042
1043 // Compute the beamforming vectors and and array responses
1044 auto aArrayResponse = aPhasedArrayModel->GetSteeringVector(aAngle);
1045 auto aAntennaFields = aPhasedArrayModel->GetElementFieldPattern(aAngle);
1046 auto aBfVector = aPhasedArrayModel->GetBeamformingVector();
1047 auto bArrayResponse = bPhasedArrayModel->GetSteeringVector(bAngle);
1048 auto bAntennaFields = bPhasedArrayModel->GetElementFieldPattern(bAngle);
1049 auto bBfVector = bPhasedArrayModel->GetBeamformingVector();
1050
1051 std::complex<double> aArrayOverallResponse = 0;
1052 std::complex<double> bArrayOverallResponse = 0;
1053
1054 // Compute the dot products between the array responses and the beamforming vectors
1055 for (size_t i = 0; i < aPhasedArrayModel->GetNumberOfElements(); i++)
1056 {
1057 aArrayOverallResponse += aArrayResponse[i] * aBfVector[i];
1058 }
1059 for (size_t i = 0; i < bPhasedArrayModel->GetNumberOfElements(); i++)
1060 {
1061 bArrayOverallResponse += bArrayResponse[i] * bBfVector[i];
1062 }
1063
1064 double gain = norm(aArrayOverallResponse) *
1065 (std::pow(aAntennaFields.first, 2) + std::pow(aAntennaFields.second, 2)) *
1066 norm(bArrayOverallResponse) *
1067 (std::pow(bAntennaFields.first, 2) + std::pow(bAntennaFields.second, 2));
1068
1069 // Retrieve LOS condition to check if a correction factor needs to be introduced
1070 ChannelCondition::LosConditionValue cond = GetLosCondition(a, b);
1071 if (cond == ChannelCondition::NLOS)
1072 {
1073 // The linear penalty factor to be multiplied to the beamforming gain whenever the link is
1074 // in NLOS
1075 constexpr double NLOS_BEAMFORMING_FACTOR = 1.0 / 19;
1076 gain *= NLOS_BEAMFORMING_FACTOR;
1077 }
1078
1079 return gain;
1080}
1081
1082double
1083TwoRaySpectrumPropagationLossModel::GetFtrFastFading(const FtrParams& params) const
1084{
1085 NS_LOG_FUNCTION(this);
1086
1087 // Set the RNG parameters
1088 m_normalRv->SetAttribute("Variance", DoubleValue(params.m_sigma));
1089 m_gammaRv->SetAttribute("Alpha", DoubleValue(params.m_m));
1090 m_gammaRv->SetAttribute("Beta", DoubleValue(1.0 / params.m_m));
1091
1092 // Compute the specular components amplitudes from the FTR parameters
1093 double cmnSqrtTerm = sqrt(1 - std::pow(params.m_delta, 2));
1094 double v1 = sqrt(params.m_sigma) * sqrt(params.m_k * (1 - cmnSqrtTerm));
1095 double v2 = sqrt(params.m_sigma) * sqrt(params.m_k * (1 + cmnSqrtTerm));
1096 double sqrtGamma = sqrt(m_gammaRv->GetValue());
1097
1098 // Sample the random phases of the specular components, which are uniformly distributed in [0,
1099 // 2*PI]
1100 double phi1 = m_uniformRv->GetValue();
1101 double phi2 = m_uniformRv->GetValue();
1102
1103 // Sample the normal-distributed real and imaginary parts of the diffuse components
1104 double x = m_normalRv->GetValue();
1105 double y = m_normalRv->GetValue();
1106
1107 // Compute the channel response by combining the above terms
1108 std::complex<double> h = sqrtGamma * v1 * std::complex<double>(cos(phi1), sin(phi1)) +
1109 sqrtGamma * v2 * std::complex<double>(cos(phi2), sin(phi2)) +
1110 std::complex<double>(x, y);
1111
1112 return norm(h);
1113}
1114
1115Ptr<SpectrumValue>
1116TwoRaySpectrumPropagationLossModel::DoCalcRxPowerSpectralDensity(
1117 Ptr<const SpectrumSignalParameters> params,
1118 Ptr<const MobilityModel> a,
1119 Ptr<const MobilityModel> b,
1120 Ptr<const PhasedArrayModel> aPhasedArrayModel,
1121 Ptr<const PhasedArrayModel> bPhasedArrayModel) const
1122{
1123 NS_LOG_FUNCTION(this);
1124 uint32_t aId = a->GetObject<Node>()->GetId(); // Id of the node a
1125 uint32_t bId = b->GetObject<Node>()->GetId(); // Id of the node b
1126
1127 NS_ASSERT_MSG(aId != bId, "The two nodes must be different from one another");
1128 NS_ASSERT_MSG(a->GetDistanceFrom(b) > 0.0,
1129 "The position of a and b devices cannot be the same");
1130
1131 Ptr<SpectrumValue> rxPsd = Copy<SpectrumValue>(params->psd);
1132
1133 // Retrieve the antenna of device a
1134 NS_ASSERT_MSG(aPhasedArrayModel, "Antenna not found for node " << aId);
1135 NS_LOG_DEBUG("a node " << a->GetObject<Node>() << " antenna " << aPhasedArrayModel);
1136
1137 // Retrieve the antenna of the device b
1138 NS_ASSERT_MSG(bPhasedArrayModel, "Antenna not found for device " << bId);
1139 NS_LOG_DEBUG("b node " << bId << " antenna " << bPhasedArrayModel);
1140
1141 // Retrieve FTR params from table
1142 FtrParams ftrParams = GetFtrParameters(a, b);
1143
1144 // Compute the FTR fading
1145 double fading = GetFtrFastFading(ftrParams);
1146
1147 // Compute the beamforming gain
1148 double bfGain = CalcBeamformingGain(a, b, aPhasedArrayModel, bPhasedArrayModel);
1149
1150 // Apply the above terms to the TX PSD
1151 *rxPsd *= (fading * bfGain);
1152
1153 return rxPsd;
1154}
1155
1156std::size_t
1157TwoRaySpectrumPropagationLossModel::SearchClosestFc(const std::vector<double>& frequencies,
1158 double targetFc) const
1159{
1160 auto it = std::min_element(std::begin(frequencies),
1161 std::end(frequencies),
1162 [targetFc](double lhs, double rhs) {
1163 return std::abs(lhs - targetFc) < std::abs(rhs - targetFc);
1164 });
1165 return std::distance(std::begin(frequencies), it);
1166}
1167
1168int64_t
1169TwoRaySpectrumPropagationLossModel::AssignStreams(int64_t stream)
1170{
1171 NS_LOG_FUNCTION(this << stream);
1172 m_normalRv->SetStream(stream);
1173 m_uniformRv->SetStream(stream + 1);
1174 m_gammaRv->SetStream(stream + 2);
1175 return 3;
1176}
1177
1178} // namespace ns3
f
double f(double x, void *params)
Definition: 80211b.c:70
ns3::Angles
Class holding the azimuth and inclination angles of spherical coordinates.
Definition: angles.h:118
ns3::ChannelCondition::LosConditionValue
LosConditionValue
Possible values for Line-of-Sight condition.
Definition: channel-condition-model.h:49
ns3::DoubleValue
This class can be used to hold variables of floating point type such as 'double' or 'float'.
Definition: double.h:42
ns3::Node
A network Node.
Definition: node.h:56
ns3::ObjectBase::SetAttribute
void SetAttribute(std::string name, const AttributeValue &value)
Set a single attribute, raising fatal errors if unsuccessful.
Definition: object-base.cc:200
ns3::PhasedArraySpectrumPropagationLossModel
spectrum-aware propagation loss model that is compatible with PhasedArrayModel type of ns-3 antenna
Definition: phased-array-spectrum-propagation-loss-model.h:45
ns3::PointerValue
Hold objects of type Ptr<T>.
Definition: pointer.h:37
ns3::Ptr
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:78
ns3::RandomVariableStream::SetStream
void SetStream(int64_t stream)
Specifies the stream number for the RngStream.
Definition: random-variable-stream.cc:113
ns3::StringValue
Hold variables of type string.
Definition: string.h:56
ns3::TwoRaySpectrumPropagationLossModel::CalcBeamformingGain
double CalcBeamformingGain(Ptr< const MobilityModel > a, Ptr< const MobilityModel > b, Ptr< const PhasedArrayModel > aPhasedArrayModel, Ptr< const PhasedArrayModel > bPhasedArrayModel) const
Compute the beamforming gain by combining single-element and array gains.
Definition: two-ray-spectrum-propagation-loss-model.cc:1031
ns3::TwoRaySpectrumPropagationLossModel::GetLosCondition
ChannelCondition::LosConditionValue GetLosCondition(Ptr< const MobilityModel > a, Ptr< const MobilityModel > b) const
Retrieves the LOS condition associated to the specified mobility models.
Definition: two-ray-spectrum-propagation-loss-model.cc:990
ns3::TwoRaySpectrumPropagationLossModel::GetFtrParameters
FtrParams GetFtrParameters(Ptr< const MobilityModel > a, Ptr< const MobilityModel > b) const
Retrieves the FTR fading model parameters related to the carrier frequency and LOS condition.
Definition: two-ray-spectrum-propagation-loss-model.cc:1002
ns3::TwoRaySpectrumPropagationLossModel::m_normalRv
Ptr< NormalRandomVariable > m_normalRv
Random variable used to sample the normal distributed amplitudes of the FTR diffuse components.
Definition: two-ray-spectrum-propagation-loss-model.h:315
ns3::TwoRaySpectrumPropagationLossModel::DoCalcRxPowerSpectralDensity
Ptr< SpectrumValue > DoCalcRxPowerSpectralDensity(Ptr< const SpectrumSignalParameters > txPsd, Ptr< const MobilityModel > a, Ptr< const MobilityModel > b, Ptr< const PhasedArrayModel > aPhasedArrayModel, Ptr< const PhasedArrayModel > bPhasedArrayModel) const override
Compute the received PSD.
Definition: two-ray-spectrum-propagation-loss-model.cc:1116
ns3::TwoRaySpectrumPropagationLossModel::GetFtrFastFading
double GetFtrFastFading(const FtrParams &params) const
Compute the stochastic power gain due to the fast fading, modeled according to the Fluctuating Two-Ra...
Definition: two-ray-spectrum-propagation-loss-model.cc:1083
ns3::TwoRaySpectrumPropagationLossModel::FtrParamsLookupTable
std::map< std::string, std::map< ChannelCondition::LosConditionValue, CarrierFrequencyFtrParamsTuple > > FtrParamsLookupTable
Nested map associating 3GPP scenario and LosCondition to the corresponding tuple of carrier frequenci...
Definition: two-ray-spectrum-propagation-loss-model.h:132
ns3::TwoRaySpectrumPropagationLossModel::m_gammaRv
Ptr< GammaRandomVariable > m_gammaRv
Random variable used to sample the Nakagami distributed amplitude of the FTR specular components.
Definition: two-ray-spectrum-propagation-loss-model.h:321
ns3::TwoRaySpectrumPropagationLossModel::m_channelConditionModel
Ptr< ChannelConditionModel > m_channelConditionModel
Channel condition model used to retrieve the LOS/NLOS condition of the communicating endpoints.
Definition: two-ray-spectrum-propagation-loss-model.h:329
ns3::TwoRaySpectrumPropagationLossModel::SearchClosestFc
std::size_t SearchClosestFc(const std::vector< double > &frequencies, double targetFc) const
Get the index of the closest carrier frequency for which the FTR estimated parameters are available.
Definition: two-ray-spectrum-propagation-loss-model.cc:1157
ns3::TwoRaySpectrumPropagationLossModel::SetFrequency
void SetFrequency(double f)
Sets the center frequency of the model.
Definition: two-ray-spectrum-propagation-loss-model.cc:981
ns3::TwoRaySpectrumPropagationLossModel::m_uniformRv
Ptr< UniformRandomVariable > m_uniformRv
Random variable used to sample the uniform distributed phases of the FTR specular components.
Definition: two-ray-spectrum-propagation-loss-model.h:309
ns3::TwoRaySpectrumPropagationLossModel::AssignStreams
int64_t AssignStreams(int64_t stream)
Assign a fixed random variable stream number to the random variables used by this model.
Definition: two-ray-spectrum-propagation-loss-model.cc:1169
ns3::TwoRaySpectrumPropagationLossModel::SetScenario
void SetScenario(const std::string &scenario)
Sets the propagation scenario.
Definition: two-ray-spectrum-propagation-loss-model.cc:960
ns3::TypeId
a unique identifier for an interface.
Definition: type-id.h:59
ns3::TypeId::SetParent
TypeId SetParent(TypeId tid)
Set the parent TypeId.
Definition: type-id.cc:936
ns3::UniformRandomVariable::GetValue
double GetValue(double min, double max)
Get the next random value drawn from the distribution.
Definition: random-variable-stream.cc:196
uint32_t
NS_ASSERT
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file,...
Definition: assert.h:66
NS_ASSERT_MSG
#define NS_ASSERT_MSG(condition, message)
At runtime, in debugging builds, if this condition is not true, the program prints the message to out...
Definition: assert.h:86
ns3::MakeDoubleAccessor
Ptr< const AttributeAccessor > MakeDoubleAccessor(T1 a1)
Definition: double.h:43
ns3::MakePointerAccessor
Ptr< const AttributeAccessor > MakePointerAccessor(T1 a1)
Definition: pointer.h:227
ns3::MakeStringChecker
Ptr< const AttributeChecker > MakeStringChecker()
Definition: string.cc:30
ns3::MakeStringAccessor
Ptr< const AttributeAccessor > MakeStringAccessor(T1 a1)
Definition: string.h:57
NS_ABORT_MSG
#define NS_ABORT_MSG(msg)
Unconditional abnormal program termination with a message.
Definition: abort.h:49
NS_LOG_COMPONENT_DEFINE
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:202
NS_LOG_DEBUG
#define NS_LOG_DEBUG(msg)
Use NS_LOG to output a message of level LOG_DEBUG.
Definition: log.h:268
NS_LOG_FUNCTION
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by ",...
Definition: log-macros-enabled.h:238
NS_OBJECT_ENSURE_REGISTERED
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Definition: object-base.h:46
MRG32k3a::norm
const double norm
Normalization to obtain randoms on [0,1).
Definition: rng-stream.cc:66
ns3
Every class exported by the ns3 library is enclosed in the ns3 namespace.
ns3::SIM_PARAMS_TO_FTR_PARAMS_TABLE
static const TwoRaySpectrumPropagationLossModel::FtrParamsLookupTable SIM_PARAMS_TO_FTR_PARAMS_TABLE
Lookup table associating the simulation parameters to the corresponding fitted FTR parameters.
Definition: two-ray-spectrum-propagation-loss-model.cc:40
ns3::TwoRaySpectrumPropagationLossModel::FtrParams
Struct holding the Fluctuating Two Ray fast-fading model parameters.
Definition: two-ray-spectrum-propagation-loss-model.h:68