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Residue number system assisted fast frequency-hopped synchronous ultra-wideband spread-spectrum multiple-access: a design alternative to impulse radio

机译：Reside Number System辅助快速跳频同步超宽带扩频频谱多址：脉冲无线电的设计替代

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摘要

Ultra-wideband (UWB) systems having a bandwidth on the order of gigahertz have recently received wide attention both in the U.S. and in Europe. The family of UWB systems may communicate either by generating ultra-wideband signals or with the aid of innovatively combining conventional narrowband, wideband, or broadband signals. At the time of writing, UWB systems have only been implemented using ultra-wideband signals, such as those known from impulse radio systems. Hence, in this paper, UWB systems using narrowband signals are explored as a design alternative, which are based on the well-known family of frequency-hopping (FH) spread-spectrum multiple-access techniques. In the proposed UWB system, FH is implemented using multistage frequency-hpping multiple access (MS/UWB FHMA).We highlight the principles of the synchronous MS/UWB FHMA communication system, investigate the associated spectrum assignment, and the residue number system (RNS) based FH strategy. Detection of the received signal can be achieved with the aid of existing fast FH signal detection schemes. Our study shows that the RNS assisted FH strategy is capable of efficiently dividing the huge number of users supported by the synchronous MS/UWB FHMA system into a number of reduced-size user groups, where the multiuser interference only affects the users within the same group. Since the number of users in each group is only a small fraction of the total number of users supported by the synchronous MS/UWB FHMA system, advanced multiuser detection algorithms can be employed for achieving near-single-user performance at an acceptable complexity. Our results show that MS/UWB FHMA is capable of supporting an extremely high number of users, while employing relatively simple receivers. Index Terms— Frequency-hopping (FH), multiuser detection (MUD), residue number system (RNS), spread-spectrum multiple access (SSMA), ultra-wide bandwidth radio.
机译：最近，在美国和欧洲，带宽都达到千兆赫兹的超宽带（UWB）系统受到了广泛的关注。 UWB系统家族可以通过生成超宽带信号或借助创新地组合传统的窄带，宽带或宽带信号进行通信。在撰写本文时，UWB系统仅使用超宽带信号来实现，例如从脉冲无线电系统中已知的那些信号。因此，在本文中，基于众所周知的跳频（FH）扩频多址技术家族，探索了使用窄带信号的UWB系统作为一种设计替代方案。在拟议的UWB系统中，使用多级频率-hpping多址（MS / UWB FHMA）来实现FH。我们重点介绍了同步MS / UWB FHMA通信系统的原理，研究了相关的频谱分配以及残数系统（RNS） ）的FH策略。可以借助现有的快速FH信号检测方案来实现接收信号的检测。我们的研究表明，RNS辅助的FH策略能够有效地将同步MS / UWB FHMA系统支持的大量用户划分为多个大小减小的用户组，其中多用户干扰仅影响同一组内的用户。由于每个组中的用户数量仅是同步MS / UWB FHMA系统支持的用户总数的一小部分，因此可以采用先进的多用户检测算法，以可接受的复杂度实现接近单用户的性能。我们的结果表明，MS / UWB FHMA在使用相对简单的接收器的同时，能够支持大量用户。索引词-跳频（FH），多用户检测（MUD），残数系统（RNS），扩频多址（SSMA），超宽带无线电。

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    L. Hanzo;

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  • 年度 2002
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  • 原文格式 PDF
  • 正文语种 {"code":"en","name":"english","id":9}
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