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): 86-90.

• 短文 • 上一篇    下一篇

卷积编码的正交序列调制多码CDMA系统

孙文江, 张平, 胡健栋   

  1. 北京邮电大学电信工程学院, 北京 100876
  • 出版日期:1998-09-10
  • 基金资助:
    国家教委优秀教师基金和国家教委留学归国人员基金资助项目

Convolutionally Encoded Multicode M-ary CDMA System

Li Zexian, Zhang Ping, Hu Jiandong   

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

摘要: 提出了一种可以有效地实现用户高数据率传输的卷积编码正交扩频多码CDMA系统.  此系统对于用户传输的高速率数据首先进行串-并转换,变换后的低数据流再进行卷积编码,然后再进行正交序列扩频调制,各支路扩频信号用同一载波进行调制发送.  对此系统在加性高斯噪声信道的性能计算和数值结果进行了分析.

关键词: 码分多址联接, 卷积编码, 正交序列扩频多码, 加性高斯噪声信道

Abstract: A convolutional encoded orthogonal sequence multicode CDMA system is analyzed so as to transmit high rate data. For the high rate data of transimters‘serial-to-parallel converted at first, and then the low rate data streams are convolutionally encoded and spreaded speetrum by a set of orthogonal sequence, all low branch data streams use a singal carrier. the perfor-mance of the system in AWGN channel is calculated, and numerical result is analyzed.

Key words: CDMA,  convolutionally encoded, multicode M-ary /CDMA, AWGN channel

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