April 1999
Intermediate to advanced
528 pages
10h 6m
English
book
Smart Antennas for Wireless Communications: IS-95 and Third Generation CDMA Applications
by Jr. - Bellcore Joseph C. Liberti, Theodore S. Rappaport - Mobile & Portable Radio Research Group Virginia Tech
Content preview from Smart Antennas for Wireless Communications: IS-95 and Third Generation CDMA Applications
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Appendix B. Q, erf, & erfc Functions[1]
The Q-Function
Computation of probabilities that involve a Gaussian process require finding the area under the tail of the Gaussian (normal) probability density function as shown in Figure B-1.
Figure B-1. Gaussian probability density function. Shaded area is Pr(x ≥ x0) for a Gaussian random variable.
Figure B-1 illustrates the probability that a Gaussian random variable x exceeds x0, Pr(x ≥ x0), which is evaluated as
Equation B.1.
The Gaussian probability density function in (B.1) cannot be integrated in closed ...
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