Page 423 - Integrated Wireless Propagation Models
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- F Finite-difference time domain (FDTD) (Cont.):
pros and cons of, 394
Fading, 5-14
Bullington monograms and, 56-57, 57f test points, 370f, 372f
coherence bandwidth attribute of, 9 Flat-edge model, 88-89
Doppler spread: Flat fading:
as attribute, 9-10 characteristics, 11
as cause, 13 Monte Carlo simulation for, 148-149
fast, 13 Forward link:
flat: combined plot:
characteristics, 11 general, 350, 351/
Monte Carlo simulation for, 148-149 with microcell, 360/
frequency-selective, 12-13, 12/ with repeaters, 358/
local mean attribute of, 6-7 without repeaters, 356/
lognormal: E/I plot, 347-348, 349/
characteristics, 4 general coverage, 347, 348f
data obtaining, 14 special area microcell, 359/
environment and, 2 special area repeaters, 352-353, 355f, 356/
propagation model, 23, 24/ Four-ray model, 242-243
satellite path loss model, 383-384 Free space:
f
multipath Rayleigh: Lee macrocell values for, 106 , 1061
characteristics, 4 loss, calculation of, 51-52
data obtaining, 14 mobile differences from, 1-2
diversity techniques for, 2 Frequency reuse:
flat fading and, 11 capacity comparisons, 154/
propagation model, 22-23, 23f co-channel interference from:
Rician distribution to, 28, 94, 385 concepts, 14-17, 45
satellite prediction, 384--385 simulation, 17-22
types of, 5 in Lee macrocell, 14, 107
underwater prediction model, 387-388, patterns, 15/
389f smart antenna and, 143
noise level estimation for, 24--27 Frequency-selective fading, 12-13, 12/
propagation models: Fresnel zones, in diffraction, 34-35, 38f
lognormal, 23, 24/
multi path Rayleigh, 22-23, 23/ - G -
noise level estimation for, 24--27 Gain, types of, 377
Rician distribution, 27-28, 385 Geometric spreading, 386
reception conditions, 5 Geometrical theory and diffraction (GTD), in-building
Rician distribution, 27-28, 94, 385 application of, 328-334
slow, 13 Germany, bullet train systems in, 392
time-delay spread: Gilbert-Elliot model, 385
as attribute, 7-8, 71, S f GPS, shortcomings of, 199, 230
as cause, 12-13
types of, 5-6 Grid files, RSSI, for Lee macrocell, 156
GTD. See Geometrical theory and diffraction
FDTD. See Finite-difference time domain
Feeder line loss, 377 - H -
Femtocell prediction, 342
Finite-difference time domain (FDTD): HAAT. See Height above average terrain
algorithm procedure, 331-333 Handoff (HO) plots:
development, 331 calculations for, 348, 350
features, 2561 special area with microcell, 359/
f
Lee in-building comparison to, 303-307, 308 , special area with repeaters, 356/
315f - 316f, 370f special area without repeaters, 354/
Lee microcell comparison to, 372/ Hata model:
millimeter wave prediction by, 393 COST-231, 80-81, 2561
