Performance Analysis of Diversity Received DS-CDMA/MDPSK Signals in m-distribution and Rician Fading Environments

m-분포 페이딩과 라이시안 페이딩 환경 하에서의 다이버시티 수신된 DS-CDMA / MDPSK 신호의 성능 분석

  • 이정도 ;
  • 강희조
  • Published : 1998.04.01

Abstract

The error are equation of DC-CDMA/MDPSK signal has been derived in m-distribution and Rician fading channels. Predeteception multipath MRC(Maximal Ratio Combining) diversity technique is employed for improving the bit error rate performance. The suitability of modeling a Rician fading environment by properly chosen m-distribution model is examined. Using the derived equation the error performance has been evaluated and shown in figures as a function of PN code sequence length(N), user number(U), multipath number(P), fading index(m), Rician factor(K), number of diversity branches(L) and ($E_b/N_o$). The results show that the error performance in Rician fading agrees well with that in m-distribution fading as fading becomes weak and as user number(U) increases and as multipath number(P) increases and diversity number(L) increases.

Keywords

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