BER of OFDM in Rayleigh fading environments with selective diversity

Abstract

This paper derives the average bit error rate (BER) of orthogonal frequency division multiplexing(OFDM)systems employing selective diversity in Rayleigh fading environments. The probability density functions (pdfs) of the signal-to-interference ratio (SIR) with and without selective diversity are derived. Average BER expressions of OFDM-BPSK and OFDM-DBPSK can be obtained.