In:
Journal of Electrical and Computer Engineering, Hindawi Limited, Vol. 2010 ( 2010), p. 1-9
Abstract:
This paper proposes a novel multiuser (MU) multiplexing scheme for temporally correlated multiple-input, multiple-output (MIMO) channels, suitable for systems employing low-rate feedback links. A decentralized solution is obtained by the mobile receivers, which employ interference rejection combiner (IRC) linear filters and command the update of the corresponding per-user antenna transmit weights through compact feedback messages, thus avoiding explicit transmission of channel information. The proposed limited-feedback algorithm outperforms existing MU-MIMO solutions employing quantized matrices, operating at the same feedback overhead. A compensation mechanism is presented, which enables the proposed solution to operate under moderate probabilities of feedback errors, at the expense of a small downlink overhead.
Type of Medium:
Online Resource
ISSN:
2090-0147
,
2090-0155
Language:
English
Publisher:
Hindawi Limited
Publication Date:
2010
detail.hit.zdb_id:
2582829-0
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