Analysis and optimization of EBPSK system in flat Rayleigh fading channel

Research on anti-fading is an important problem in wireless communication system. Because of the existence of guard interval, the high-efficiency extended binary phase shift keying (EBPSK) modulation is provided with excellent anti-fading characteristics. The bit error rate (BER) performance of EBPSK system in flat Rayleigh fading channel is analyzed qualitatively. Then a diversity scheme with selection combining (SC) based on special impacting filter demodulation is proposed. As the simulation result, the BER performance of the proposed scheme is better than that of traditional system, especially in the fading channel.