Exact BER Analysis of Binary and Quaternary PSK With Generalized Selection Diversity in Cochannel Interference

This paper proposes a new analytical method for computing the average error probabilities in binary and generalized quadriphase signals with diversity receivers in the presence of Rayleigh-faded cochannel interference. This leads to new expressions for the exact average bit-error rates and average combined signal-to-noise-plus-interference-ratio of binary phase-shift keying (PSK), quadrature PSK (QPSK), offset QPSK, and minimum shift keying with generalized selection diversity (hybrid selection/maximal ratio combining) in the presence of multiple Rayleigh-faded cochannel interferers of arbitrarily power levels.