Page 427 - Integrated Wireless Propagation Models

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Lee microcell model (Cont.): Lognormal fading:
measured versus predicted, 193-198, 193/, 210/, characteristics, 4
214-218 data obtaining, 14
morphology in, 219-224 environment for, 2
multiple breakpoint, 224-225 propagation model, 23, 24/
near-in distance in, 188-189 satellite path loss model, 383-384
path loss: Langley-Rice model:
exponent, 145-146, 151/-154/ area-to-area, 175-178
slopes, 226-230 comparison, 179
range scenarios, 193-194, 195f - 196f features, 182t
simulation: point-to-point, 175
model, 148-149, 150/ terrain databases for, 181
results, 150-155 Loo model, 384
worst-case, 153, 153/, 155 LOS. See Line-of-sight
smart antenna compared to, 145-146, Low-noise amplifier (LNA). See Masthead LNA
147f
simulation model for, 148-149, 150/ - M -
simulation results, 150-155
worst-case, 153, 153f, 155 Macrocell prediction models. See also Lee macrocell
special area design using, 357-360, model
359f - 360f Blomquist-Ladell, 68-70
street simplification of, 198-199 Bullington monograms, 56-57, 57f, 58f, 179, 181
strengths of, 188 Carey, 64-65, 179, 182t
system design choice of, 382 categorization of, 95
terrain influences on: CCIR, 66--<iS, 181, 182t
integration, 210, 211/ COST-231-Hata, 80-81, 256t
nonshadow, 207 development timeline, 180t
shadow, 208-210 Edwards-Durkin, 68-70, 181
test points, 370-372 Egli, 58--<iO, 181, 182t
with in-building, 367f, 368f empirical category of, 95, 181
validation of, 214-218, 219f - 221f , 345 by FCC, 64
worst-case, 153, 153/, 155 features comparison for, 182t
zones of, 143, 147/ flat-edge, 88-89
Licensing, radio, 64 free space loss in, 51-52
Line-of-sight (LOS): Hata-Davidson, 81
in aeronautical prediction, 390, 39lf, 392 lbrahim-Parsons, 70-75, 181
in ITU-R P.1411 model, 249-250 Ikegami, 83, 84/
in Keenan-Motley model, 281-283, 285, 321, implementation approaches for, 181
322/ ITU-R P.530-9, 92-94
in Lee model: ITU-R P.1546, 90-92
in-building: JRC, 60-<i1, 61f, 181
enhanced, 285, 286f, 289, 321, 322/ link budget calculation with, 379
single-floor, 270-271 Langley-Rice, 175-178
microcell, building influences on, 205-206 near-in distance in, 188-189
single breakpoint path loss, 103 Okumura-Hata, 75-80, SOt, 256t
in millimeter wave prediction, 393 on-body models and, 94-95
in satellite channel model, 385 overview, 43
in terrain normalization, 160-161 physical category of, 95
Link budget: plane earth, 52, 53f
analysis, 379-381 statistical category of, 95
calculation parameters, 377, 379 TIREM, 61-<i3, 63f, 64/
LMS (land-mobile-satellite). See Satellite in United Kingdom, 60--<il, 61f, 70-73, 181
communication signals Walfisch-Bertoni, 81-83, 182t
LNA (low-noise amplifier). See Masthead LNA Walfisch-Ikegami, 84-87
Local mean, 6-7 Young, 53-55