Page 426 - Integrated Wireless Propagation Models

404 I n d e x

Lee in-building model, single-floor (Cont.): Lee macrocell model, multiple breakpoint (Cont.):
measured versus predicted, 302-307 enhanced, 169-174
NLOS, 271-274 path loss, 116-117, 117/
sample layouts, 269-270 RSSI grid files, 156
test points, 366-370 single breakpoint:
validation, 277, 278f, 345 1-mile intercept significance in, 105-106
Lee macrocell-microcell model: accuracy of, 100-101
algorithms, 224-225 adjustment factor, 102, 114-115
data characteristics, 229-230 antenna height gain, 102-103, 108-109, 110f, 115
overall integration, 223-224 component overview, 102, 342-343
path loss slopes for, 226-229 diffraction, 102, 103, 113, 114/
/
validation, 230-231, 232 , 233/ frequency offset in, 14, 107
Lee macrocell model: path loss, 102, 103-106, 117/
antenna tilting and: signal smoothing process, 115-116
calculations, 139-141 slope and intercept reference values, 105-106
co-channel interference and, 139, 140 , 142 system design choice of, 381-382
/
coverage and, 348/ terrain elevation extraction:
models, 144/ - 146/ averaging, 121
notch evaluation in, 141-142 Earth curvature offset, 121, 122/
simulation, 142-143 extracting, 119-120
types, 138-139 radials and radial arrays, 120
attribute integration: terrain normalization:
categorizing, 123-126 double-knoll case of, 166-167
influence of, 122-123 in Italy, 159-160
network engineering process and, 123 measurements, 159-160
time, 129-131 method, 158-159
trees, 123, 127-131 need for, 157
tunnel, 126-127 nonobstructive comparison in, 160-161
water, 131-138, 204 obstructive comparison in, 161-168
automorphology: in San Diego, 167-168
accuracy of, 100 single-knoll case of, 164-166
path loss for, 118, 118f, 123 test points, 372-375
comprehensive model with, 343-345, 365f, 366/ validation of, 343-345
data: variations of, 100, 116-118
coverage files, 155-156 water enhancement, 131-138, 204
drive test, collecting, 199-205 Lee microcell model:
input quality, 199 accuracy verification of, 236-238
RSSI grid files, 156 advantages of, 257
terrain elevation, 119-121, 122/ attribute integration, 219-222, 223/
development of, 2-3, 178-179, 336, 341 breakpoints in, 224-225
diffraction: buildings:
multiple knife, 102, 103, 113, 114/ basics of, 190-192, 193/
single knife, 102, 103, 110-112, 128-129 height in, 220-222, 223/
enhanced: influence of, LOS, 205-206
antenna height gain, 169-170 influence of, NLOS, 207-208
diffraction, multiple knife, 170, 172 / length scenario in, 194, 197f, 198
diffraction, single knife, 170, 171/ C/1 comparison, 145-155
measured versus predicted, 170-17 4 comprehensive model with, 345, 365f, 366/
original versus, 172, 173f, 174 / data characteristics, 199-205
features, 99-100, 182t equipment modification for, 148/
formulation, 101-102 features, 256t
implementation, 100-101 grid bin units, 219
measurements collection, 343 JLO of, 233-238
multiple breakpoint: linear optimization of, 233-234
accuracy of, 101 matrix optimization of, 234