Joint Channel Parameter Estimation and Signal Detection for Downlink MIMO DS-CDMA Systems(<Special Section>Software Defined Radio Technology and Its Applications)
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概要
- 論文の詳細を見る
This paper proposes two space-time joint channel parameter estimation and signal detection algorithms for downlink DS-CDMA systems with multiple-input-multiple-output (MIMO) wireless multipath fading channels. The proposed algorithms initially use the space-time MUSIC to estimate the DOA-delays of the multipath channel. Based on these estimated DOA-delays, a space-time channel decoupler is developed to decompose the multipath downlink channel into a set of independent parallel subchannels. The fading amplitudes of the multipath can then be estimated from the eigen space of the output of the space-time channel decoupler. With these estimated channel parameters, signal detection is carried out by a maximal ratio combiner on a pathwise basis. Computer simulations show that the proposed algorithms outperform the conventional space-time RAKE receiver while having the similar performance compared with the space-time minimum mean square error receiver.
- 社団法人電子情報通信学会の論文
- 2005-11-01
著者
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WANG Yung-Yi
Faculty of Department of Electrical Engineering, Chang-Gung University
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Wang Yung‐yi
Chang‐gung Univ. Tao‐yuan Twn
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CHEN Jiunn-Tsair
Raling Tech. Corp.
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WANG Yung-Yi
Department of Electrical Engineering, Chang-Gung University
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LU Ying
Department of Computer and Communications Engineering, St. John's University
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Lu Ying
St. John's Univ. Taipei Twn
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Lu Ying
Department Of Computer And Communications Engineering St. John's University
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Wang Yung‐yi
St. John's Univ. Taipei Twn
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Wang Yung-yi
Department Of Electrical Engineering Chang Gung University
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Wang Yung-yi
Department Of Computer And Communication Engineering St. John's University
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Wang Yung-yi
Department Of Computer And Communications Engineering St. John's University
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CHEN Jiunn-Tsair
Department of Electronic Engineering, National Taiwan University of Science and Technology
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Chen Jiunn-tsair
Department Of Electrical Engineering National Tsing Hua University
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