北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2005, Vol. 28 ›› Issue (6): 65-68.doi: 10.13190/jbupt.200506.65.zhaolx

• 研究报告 • 上一篇    下一篇

一种基于完备互补码的UWB多址接入方式

赵立昕,赵成林,周正   

  1. 北京邮电大学 电信工程学院, 北京 100876
  • 出版日期:2005-12-28 发布日期:2005-12-28

A Multiple Access Method Based on Complete Complementary Codes in Ultra WideBand Wireless Communication

ZHAO Lixin,ZHAO Chenglin,ZHOU Zheng   

  1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Online:2005-12-28 Published:2005-12-28

摘要:

基于完备互补码的互相关函数为零的特性,提出1种基于完备互补码的超宽带(UWB)多址方法. 利用偏移相加(shift and add)的相关接收机进行用户信息的相关解调,并阐述了这种接收机的工作原理以及对多址干扰的抑制原理. 性能分析和仿真结果表明,这种基于完备互补码的UWB多址方式比传统的通过脉冲调制实现的跳时多址接入UWB系统具有更好的抗多址干扰的能力.

关键词: 超宽带, 多址接入方式, 完备互补码, 直接序列扩频

Abstract:

A multiple access method based on complete complementary codes in UWB (ultra wideband) communication was presented. The zero crosscorrelation of complete complementary codes ensured it as the signature code about user. The decoding of the receiver employed the algorithm about shift and add to decode the intended user's information. The principle of the proposed receiver and the reason why the receiver could suppress multiple access interference (MAI) were illustrated. The performance analysis and simulation results show that the proposed multiple access method based on complete complementary codes can accommodate better performance on suppressing MAI than THPPM UWB system.

Key words: ultra wideband, multiple access method, complete complementary codes, direct sequence spread spectrum

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