Ultra-wideband multiple access: unification and narrowband interference analysis

Liuqing Yang, G. Giannakis
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引用次数: 13

Abstract

Interference from co-existing narrowband services constitutes the bottleneck of ultra-wideband (UWB) communications. To quantify interference and compare UWB systems on that basis, a general framework is needed. In this paper, we develop a unifying transmission and Rake reception model for UWB multiple access encompassing existing and novel spreading codes: direct-sequence (DS), digital single- and multi-carrier (SC/MC), time-hopping (TH), and combinations of them. Performance analysis is also carried out in closed-form. The relative merits of several UWB systems are further assessed by simulations, in narrowband interference (NBI), multipath, and additive white Gaussian noise (AWGN), for both matched-filter (MF), and minimum, mean-square error (MMSE) Rake receivers.
超宽带多址:统一与窄带干扰分析
同时存在的窄带业务的干扰构成了超宽带通信的瓶颈。为了量化干扰并在此基础上比较UWB系统,需要一个通用的框架。在本文中,我们开发了一个统一的UWB多址传输和Rake接收模型,包括现有的和新的扩展码:直接序列(DS),数字单载波和多载波(SC/MC),时间跳变(TH),以及它们的组合。性能分析也以封闭的形式进行。通过对匹配滤波器(MF)和最小均方误差(MMSE) Rake接收机在窄带干扰(NBI)、多径和加性高斯白噪声(AWGN)条件下的仿真,进一步评估了几种超宽带系统的相对优点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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