Abstract
MIMO-DFE(Multiple-Input-Multiple-Output Decision Feedback Equalizer) based receiver architectures are researched recently to detect signals in BLAST(Bell laboratories LAyered Space-Time) over frequency-selective channels. Due to their recursive structure, these receivers may suffer from error propagation which results in an overall mean square error degradation. An MIMO-DFE based BLAST receiver with limited error propagation to combat frequency-selective channel is proposed, which employs both norm constraint on feedback filter taps and soft decision device. Simulation results show that the proposed receiver outperforms conventional ones in various frequency selective channels.
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Communication author: Hu Bo, born in 1968, male, professor. Room 421, Wu Li Building, Fudan University, No.220, Hang Dan Road, Shanghai 200433, China.
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Shen, L., Hu, B. MIMO-DFE based space-time receiver over frequency selective channels with limited error propagation. J. of Electron.(China) 22, 105–111 (2005). https://doi.org/10.1007/BF02688135
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DOI: https://doi.org/10.1007/BF02688135