DS/TH-UWB多址系统的误比特分析

Error Analysis of Hybrid DS/TH UWB Multiple Access System

分析了一种直接序列与跳时码混合的超宽带多址系统(DS/TH-UWB),并针对该系统提出了一种简单可行的误比特分析法。它是基于 Holtzman 的简化改进的高斯近似(SIGA),并已成功应用于 DS-CDMA 系统中。文章首先给出了系统模型,然后对该系统进行了分析,并推出了具体误比特率表达式,最后对 SGA 和 SIGA 的方法进行了仿真比较。结果表明,此方法可以有效地应用于超宽带(UWB)多址系统中。

In this paper, a hybrid direct-sequence time-hopping (DS/TH) ultra-wideband (UWB) multiple access system is proposed and a simple error analysis for the system is presented. The error analysis facilitates to obtain simple and accurate error probabilities based on Holtzman’s simplified improved Gaussian approximation (SIGA), a method that has previously been used mainly in DS-CDMA. This paper points out that the method can also be used effectively for UWB multiple access systems.