Adaptive MIMO decision feedback equalization for receivers with time-varying channels

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In an attempt to reduce the computational complexity of vertical Bell Labs layered space time (V-BLAST) processing with time-varying channels, an efficient adaptive receiver is developed based on the generalized decision feedback equalizer (GDFE) architecture. The proposed receiver updates the filter weight vectors and detection order using a recursive least squares (RLS)-based time- and order-update algorithm. The convergence of the algorithm is examined by analysis and simulation, and it is shown that the proposed adaptive technique is considerably simpler to implement than a V-BLAST processor with channel tracking, yet the performances are almost comparable.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2005-11
Language
English
Article Type
Article
Keywords

CDMA SYSTEMS

Citation

IEEE TRANSACTIONS ON SIGNAL PROCESSING, v.53, no.11, pp.4295 - 4303

ISSN
1053-587X
DOI
10.1109/TSP.2005.857053
URI
http://hdl.handle.net/10203/12262
Appears in Collection
EE-Journal Papers(저널논문)
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