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IEICE TRANSACTIONS on Communications

A Robust Closed-Loop Transmit-Diversity Scheme with Unknown CSI Reliability

Eunchul YOON, Joon-Tae KIM, Taewon HWANG

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Summary :

In a closed-loop scenario, the performance of transmit-diversity schemes for a multiple antenna system depends on the reliability of the channel state information (CSI). However, estimating the reliability of the instantaneous CSI at the transmitter is a challenging task. In this paper, we propose a robust transmit-diversity scheme for the case when the instantaneous CSI available at the transmitter is imperfect and its reliability is unknown to the transmitter. We show by simulation that our proposed scheme is efficient when the CSI reliability varies arbitrarily in every channel realization.

Publication
IEICE TRANSACTIONS on Communications Vol.E93-B No.9 pp.2400-2406
Publication Date
2010/09/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E93.B.2400
Type of Manuscript
PAPER
Category
Wireless Communication Technologies

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