北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2001, Vol. 24 ›› Issue (2): 84-86.

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Turbo码译码算法在多径Nakagami信道中的修正

林家儒1, 吴伟陵1, 冯志勇2   

  1. 1.北京邮电大学信息工程学院, 北京 100876;
    2.北京邮电大学继续教育学院, 北京 100876
  • 收稿日期:2000-09-19 出版日期:2001-03-10
  • 作者简介:林家儒(1958—),男,北京邮电大学副教授.
  • 基金资助:
    国家自然科学基金资助项目(69896243)

Modified Decoding Algorithm of Turbo Code on Multipath Nakagami Fading Channels

LIN Jia-ru1, WU Wei-ling1, FENG Zhi-yong2   

  1. 1.Information Engineering School,Beijing University of Posts and Telecommunications,Beijing 100876,China;
    2.Continuing Education School,Beijing University of Posts and Telecommunications,Beijing 100876,China
  • Received:2000-09-19 Online:2001-03-10

摘要: 分析了宽带DS/CDMA系统在Nakagami信道中的性能的基础上, 针对Nakagami信道对Turbo码译码提出了修正算法——由Rake接收输出经最大比例合并等处理后的信号、 除以信道幅度参数αmi的平方之和、 以高斯分布计算Turbo码译码的γ函数、 进行Turbo码译码.

关键词: Turbo码, DS/CDMA, 衰落信道, Nakagami

Abstract: Analyzes the performance of DS/CDMA systems on multipath Nakagami fading channels and proposes a modified decoding algorithm of turbo code on multipath Nakagami fading channels, i.e.the signal with maximum ratio combiner divides by the all square of amplitudes of the channel, calculate the probability function γ for Turbo code, and then decode the signal as Turbo decoding.

Key words: Turbo code, DS/CDMA, fading channel, Nakagami

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