PRMLを用いたアレーアンテナによるDS/CDMAマルチユーザ等化器

概要

論文の詳細を見る
In a Direct Sequence Code Division Multiple Access (DS/CDMA), the most serious problem Is not only ISI (Intersymbol Interference) due to multipath distortion in a mobile radio channel but also Co-Channel interference (CCI) due to the correlation between the spreading codes. Many papers have been proposed to solve these problems. We have already proposed systems based on an adaptive array antenna from the view point of spatial and temporal signal processing. This paper proposes a system that transmitted signals are encoded by a correlative code such as a partial response and the receiver structure is Viterbi Equalizer (VE) like in CDMA environment. Since transmitted signals are encoded, the receiver can separte by a spatial signal processing and decode by Viterbi algorithm taking into account of not only ISI but also CCI. Finally, computer simulation shows basic performance of the proposed system using spatial and temporal signal processing.
社団法人電子情報通信学会の論文
1996-09-18