나카가미 페이딩 채널하에서 다이버시티를 갖는 셀룰러 하이브리드 DS/FH 확산대역 시스팀의 성능

Performance of cellular hybrid DS/FH spread spectrum systems with diversity on nakagami fading channel

In this paper, we analyze the anynchrous cellular hybrid DS/FH spread spectrum system with diversity on nonselective Nakagami fading channel. Binary Psk scheme is considered and random spreading code sequences and random hopping patterns are used. We compare the performance of system using hard-limiting correlation receiver with diversity and linear corrleation receiver in Nakagami fading channel. We compute the average bit error probabilities with/without diversity according to spreading code sequence and the number of hop-ping frequencies under the same handwith espansion, and analyze near-far effect. The results show that hard-limiting correlation receiver with diversity gives a good performance over severe fading channel.