A Spatially and Temporally Optimal Multi-User Receiver Using an Array Antenna for DS/CDMA
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概要
- 論文の詳細を見る
The tandem structure of a matched filter (MF) and a maximum likelihood sequence estimator (MLSE) using the Viterbi algorithm (VA) has been considered to be an optimal receiver for digital pulse-amplitude sequences in the presence of intersymbol interference (ISI) and additive white Gaussian noise (AWGN). An adaptive array antenna has the capability of filtering received signals in the spatial domain as well as in the temporal one. In this paper, we propose a receiver structure using an adaptive array antenna, a digital filter and the VA that is spatially and temporally optimal for multi-user detection in a direct sequence code division multiple access (DS/CDMA) environment. This receiver uses a tapped delay line (TDL) array antenna and the VA, which provides a maximum likelihood sequence estimate from the spatially and temporally whitened matched filter (ST-WMF) output. Performance of the proposed receiver is evaluated by theoretical analysis and computer simulations.
- 社団法人電子情報通信学会の論文
- 1995-11-25
著者
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Kohno Ryuji
Faculty Of Engineering Yokohama National University
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Nagatsuka Minami
Faculty Of Engineering Yokohama National University
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Kohno Ryuji
Faculty Of Eng. Yokohama National University
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