A spatially and temporally optimal multi-user receiver using an array antenna for DS/CDMA

Proceedings of 6th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 1995-11-25 DOI:10.1109/PIMRC.1995.477084

R. Kohno, N. Ishii, M. Nagatsuka

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引用次数: 49

Abstract

The tandeni structure of a iiiatclied filter (MF) aiid a iiiaxiiiiuiii likelihood sequence es& inator (MLSE) using the Vit,erbi algorit,liiii (VA) lim been considered t,o be an optimal receiver for digital pulse-amplitude seyiiciiccs iii the ~)rcsciicc of ititmsyiiibo1 interference (ISI) iLli(1 iLtlclitivc: whit-e GiLitssiiLir tioisc (AWGN). An adaptive i~ r ray >llit(:liliiL 1 ~ ~ s t,lic capability of filtering reccivt:tl sigiials in tJie spiitiitl tloiiiaiii as well as in tlie teiiiporiil 0 1 1 ~ . In this paper. w(: propose a receiver structiirt: using m i iLdaptiv(: array antenna, a digital filter slid the VA tliRt, is sI)iltiidly and teiiiporally optimal for iiiultinscr dctmtioii in a DS/CDMA eiivironiiient. This receiver iiscs it tapped delay line (TDL) array alit,ciiiia iilitl thc VA. wliicli 1)rovides a iiiaxiiiiuiii likelihood s(:qiieiic(: c:stbiiiiatSe froiii t h spatially ancl t e l ~ l ~ ) ~ r i ~ l l y wliitciicd iiiiLt.diCd fil t t r (STWMF) output,. Pcrforiiiaiic:c: of thc propos(:d rcccivt:r is evaluated by t,hcoret,ical iL1ialysis xiid cotiipitt.c:r sinulations.

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一种用于DS/CDMA的使用阵列天线的空间和时间最优的多用户接收机

采用Vit、erbi算法的三阶线性滤波器(MF)的串联结构辅助三阶线性似然序列发生器(MLSE)，认为在三阶线性干扰(ISI)、三阶线性干扰(ISI)、三阶线性干扰(lilii)、三阶线性序列序列发生器(AWGN)中，三阶线性滤波器(MF)是数字脉冲振幅特性的最佳接收器。一种自适应我~ r射线> llit (: liliiL 1 ~ ~ s t,地方政府投资公司的过滤能力reccivt: tl sigiials在tJie spiitiitl tloiiiaiii以及外国teiiiporiil 0 1 1 ~。在本文中。本文提出了一种采用自适应阵列天线的接收机结构，该结构采用数字滤波器滑移VA天线，在DS/CDMA环境下具有良好的抗干扰性和性能。该接收机采用抽头延迟线(TDL)阵列阵列，并将其与va阵列相结合，提供了一种具有较强的延迟线(TDL)阵列，该阵列具有较强的延迟线(TDL)阵列，该阵列具有较强的延迟线(TDL)阵列，该阵列具有较强的延迟线(TDL)阵列。(d)文件输入到r (STWMF)输出。Pcrforiiiaiic: c: thc的提议(d rcccivt: r是评价t, hcoret, ical iL1ialysis xiid cotiipitt.c: r sinulations。

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Proceedings of 6th International Symposium on Personal, Indoor and Mobile Radio Communications

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