Impact of adaptive antenna array and transmit power control on uplink performance of a DS-CDMA packet cellular system (無線通信システム)
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概要
- 論文の詳細を見る
The uplink performance of a direct-sequence code division multiple access (DS-CDMA) packet cellular system is limited by multi-access interference (MAI) from the other users. On one hand, adaptive antenna array (AAA) is a promising technique to increase the link capacity by suppressing the MAI of mobile radio communications systems. On the other hand, transmit power control (TPC) is an effective method to improve the performance further. However, the combination of AAA and TPC has always been considered difficult. In this study, a TPC algorithm for AAA-rake receiver is proposed. In this algorithm, the TPC and the weight vector calculation for AAA-rake receiver are separated. The outage probability of the received signal-to-interference plus noise power ratio (SINR) is evaluated by computer simulation and compared with coherent rake receiver using maximal ratio combining (MRC) to show that the proposed algorithm can yield a better performance.
- 社団法人電子情報通信学会の論文
- 2008-02-27
著者
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Fu Jing
Department Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Univers
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Adachi Fumiyuki
Department Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Univers
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Adachi Fumiyuki
Department Of Electorical Communication Engineering Graduate School Of Engineering Tohoku University
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