Performance Analysis of Alamouti Scheme in Time-Varying and Spatially Correlated Channels

Eunju LEE  Jaedon PARK  Giwan YOON  

Publication
IEICE TRANSACTIONS on Communications   Vol.E93-B   No.10   pp.2804-2807
Publication Date: 2010/10/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.2804
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
Alamouti scheme,  correlated channels,  outage probability,  time-varying,  

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Summary: 
In this paper, we analyze the performance of the 21 Alamouti scheme suggested by Alamouti, composed of the transmit space-time code and the simple linear decoding processing, in perfectly time-varying and spatially correlated channels. We derive the closed-form probability density function (PDF) of output signal-to-noise ratio (SNR) and outage probability of the Alamouti scheme as a function of spatial correlation coefficient in the consideration of no correlation in time. We observe that the performance of the Alamouti scheme is severely degraded when the channels are time-varying and spatially correlated.