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ANALYTICAL APPROACH
• It is the least-interfered channel that is of interest, NOT the interference
from neighboring FWA sites.
• The effect of FWA therefore cannot in general be analyzed by simply
subtracting the Erlangs used by the nearest FWA from the total “available
Erlangs”; that would ignore the effect of all but the nearest FWA
transmitters.
• The actual interference power on the least-interfered channel must be
computed.
• This is easily done using standard Monte Carlo techniques as described in
the paper.
INTERFERENCE DISTRIBUTION - MICROBASESPr{I < x} (percent)
99
90
Distribution of
70 interference on
50 arbitrary channel
30 Distribution of interference on
least-interfered FWA channel
10
1
-70 -65 -60 -55 -50 -45
x (dBm)
Inter-American Telecommunication Commission 367