Performance of a two-branch radiotelephone selection diversity receiver

This paper describes an 800 MHz two-branch selection diversity receiver designed for use at the base site of a cellular mobile telephone system. Audio S/N and bit error rates measured with a simulated Rayleighfaded carrier signal are compared with computer predicted results generated from audio signal and noise measurements and bit error rate data taken with a nonfaded carrier signal. The receiver audio S/N performance with unequal branch gains is investigated. Results are compared with those obtained for a maximal ratio diversity receiver.