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Outage Probability Based Optimal Transmission of Space Time Block Codes over Correlated Distributed Antennas

Shuangfeng HAN, Shidong ZHOU, Ming ZHAO, Jing WANG, Kyung PARK

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Summary :

Aiming to optimally transmit space-time block codes (STBCs) over distributed antennas (DAs), this paper examines downlink transmit antenna subset selection with power allocation for STBCs in non-ergodic Rayleigh fading channels with receive antenna correlations. Closed-form outage probability is first derived, which is a function of data rate, rate of STBCs, transmit power, large-scale fading (shadowing and path loss), power allocation weights to each DA and receive antenna correlation. However, achieving the optimal power allocation solution is computationally demanding and the use of sub-optimal techniques is necessitated. Assuming feedback of eigenvalues of transmit and receive antenna correlation matrix at the transmitter and accurate channel state information (CSI) at the receiver, an antenna subset selection with sub-optimal power allocation scheme is proposed, whose performance approaches optimal. The effectiveness of this sub-optimal method has been demonstrated by numerical results.

Publication
IEICE TRANSACTIONS on Communications Vol.E89-B No.9 pp.2514-2521
Publication Date
2006/09/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e89-b.9.2514
Type of Manuscript
PAPER
Category
Wireless Communication Technologies

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