Exact BER analysis of bandlimited BPSK with EGC and SC diversity in cochannel interference and Nakagami fading

Equal gain and selection combining for bandlimited binary phase-shift keying systems in Nakagami fading with cochannel interference are considered. Spectrum raised-cosine and Beaulieu-Tan-Damen pulse shapes are employed. Average bit error rates are derived for arbitrary orders of diversity and fading parameters. The computational complexity of the solution does not grow with the diversity order. Slow flat fading, asynchronous timing and independent fading gains are assumed.