Precoder Design of Non-Regenerative Relays with Covariance Feedback

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In this letter, the optimal form of the precoding matrix is initially derived to maximize the ergodic capacity between the source and destination with covariance information of the relay-destination link. The elements of the precoding matrix are then determined to maximize the upper bound of the ergodic capacity. The numerical results show that the performance of the proposed scheme is close to that of the full feedback scheme when there is a high correlation at the transmit antennas of the relay.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2009-12
Language
English
Article Type
Article
Keywords

ANTENNA SYSTEMS; EIGENVALUES

Citation

IEEE COMMUNICATIONS LETTERS, v.13, no.12, pp.920 - 922

ISSN
1089-7798
DOI
10.1109/LCOMM.2009.12.091476
URI
http://hdl.handle.net/10203/97549
Appears in Collection
EE-Journal Papers(저널논문)
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