Page 429 - Integrated Wireless Propagation Models

I n d e x 407

Point-to-point models. See also Lee macrocell
- a -
obstruction. See also Non-line-of-sight model
diffraction, 33-41 benefits of, 99
reception conditions, 5 characteristics of, 43
reflection, 28-33 Longley-Rice, 175
sea ttering, 42, 44-45 Prediction models:
Okumura model: actual routes compared to, 157
CCIR based on, 66, 66f application of:
comparison, 179 by classification, 42-43
features, 1821, 2561 by interference aspects, 45-46
Hata model with: by signal strength aspects, 43-45
curves, 77 - 78f by size, 43
f
features, 2561 characteristics of, 341
formulations, 76, 79-80, SOt choosing, for system design, 381-383
parameters for, 75-76, 761 development history, 179, 1801, 341
Omni-cell, capacity comparison for, 148-154 implementation categories, 181
On-body models, 94-95 for satellite, 383-386
On-frequency repeater, 352 Prediction tools:
1-mile intercept: gain types, 377
in multiple breakpoint microcell model, 224-225 link budget:
significance of, 105-106 analysis, 379-381
in terrain normalization, 158-159 calculation, 377, 379
Open areas. See also Free space loss types, 377
defined, 78 noise:
Hata's formulation for, 80 power received, 378
types, 377
- P ­ radio communication link, 376
Path loss: signal power received, 377-378
in-building: Probability density function (PDF), 9
Lee, for room, 274-275 Propagation:
ray tracing, 329, 330/ fading models:
macrocell: lognormal, 23, 24/
Lee automorphology, 118, 118f, 123 multipath, 22-23, 23/
Lee multiple breakpoint, 116-117, 117/ noise level unbiased average for, 24-27
Lee single breakpoint, 102, 103-106, 117/ Rician distribution, 27-28, 385
macrocell-microcell, Lee, 226-229 mechanisms:
microcell, Lee, 145-146, 151f-154f, 226-230 diffraction, 33-41
satellite, 383-384, 386 reflection, 28-33
PDF. See Probability density function scattering, 42, 44-45
Permittivity, medium comparison of, 301 Public telephone network (PTN), 4
Phoenix program (for Lee model), 3
Physical models:
in-building category of, 319-320, 328 - Q -
Qualcomm, in-building layout, 270f, 276f, 278f
macrocell category of, 95
microcell category of, 242
Picocell prediction. See In-building prediction - R ­
Plane earth model: Radial path, 43-44, 44f
Bullington monograms and, 57f Radio communication link. See Channel;
Egli formula and, 58-60, 181 Link budget
Ibrahim-Parsons, 74-75, 181 Radio path, 43-44, 44f
as implementation category, 181 Random waveguide model, 243-246
theory, 52, 53f Ray tracing:
Point-to-area models: in-building:
characteristics of, 42 applications, 330-331
ITU-R P.1546, 90-92 description, 328