Both Minimum MSE and Maximum SNR Channel Training Designs for MIMO AF Multi-Relay Networks with Spatially Correlated Fading

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This letter proposes channel training designs for two-hop multi-relay networks, where a source, a destination and multiple amplify-and-forward (AF) relays are all equipped with multi-antenna, based on mean square error (MSE) and signal-to-noise ratio (SNR) criteria with taking into account spatial fading correlation between multiple-input multiple-output (MIMO) channel elements. The minimum MSE and maximum SNR channel estimators are initially derived and, then, optimal structures on source training signal and relay matrices are determined. An iterative and a closed-form power allocation solutions are proposed for both channel estimators. Simulation results show that the proposed schemes outperform the conventional schemes.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2015-11
Language
English
Article Type
Article
Keywords

RECEIVE ANTENNAS; WIRELESS; AMPLIFY; SYSTEMS

Citation

IEEE SIGNAL PROCESSING LETTERS, v.22, no.11, pp.1888 - 1892

ISSN
1070-9908
DOI
10.1109/LSP.2015.2442587
URI
http://hdl.handle.net/10203/200074
Appears in Collection
EE-Journal Papers(저널논문)
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