北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 1998, Vol. 21 ›› Issue (s): 23-29.

• 学术论文 • 上一篇    下一篇

编码多载波CDMA在瑞利衰落信道下的性能分析

吴俊, 吴伟陵   

  1. 北京邮电大学信息工程系, 北京 100876
  • 出版日期:1998-09-10
  • 基金资助:
    国家自然科学基金资助项目(69896243)

Performance of Convolutionally Coded MC-CDMAin a Rayleigh Fading Channel

Wu Jun, Wu Weiling   

  1. Department of Information Engineering, Beijing University of Posts and Telecommunications, Beijing 100876
  • Online:1998-09-10

摘要: 讨论了一种新的CDMA体制, 即将OFDM调制技术应用于CDMA的MC-CDMA.从理论上分析了编码MC-CDMA经过Rayleigh衰落信道下的性能, 针对接收端采用分集与Viterbi译码相结合的接收技术, 分别给出上行和下行链路的误码率表达式, 并模拟了性能曲线.

关键词: 码分多址联接, 正交频分复用, 等增益合并器, 最大比合并器

Abstract: A new Code Division Multiple Access called MC-CDMAis discussed which combines the principle of a CDMA system with OFDM.Corresponding to Viterbi decoder and the two diversity reception techniques: Equal Gain Combining and Maximal Ratio Combining, the uplink and downlink performance of convolutionally coded MC-CDMA in a Rayleigh fading channel is analyzed and the simulated results are also presented.

Key words: CDMA, orthogonally frequency division multiplex, equal gain combiners, maximal ratio combiners

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