一种基于完备互补码的UWB多址接入方式

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

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.

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 TH-PPM UWB system.