Pairwise Error Probability of Distributed Space--Time Coding Employing Alamouti Scheme in Wireless Relays Networks

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Author(s): Quang Trung Duong, Ngoc-Tien Nguyen, Trang Hoang, Viet-Kinh Nguyen
Title: Pairwise Error Probability of Distributed Space--Time Coding Employing Alamouti Scheme in Wireless Relays Networks
Journal: Wireless Personal Communications
Year: 2009
Volume: 51
Issue: 2
Pagination: 231-244
ISSN: 0929-6212
Publisher: Springer
URI/DOI: 10.1007/s11277-008-9640-9
ISI number: 000270195400002
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Signal Processing (Sektionen för teknik – avd. för signalbehandling)
School of Engineering S- 372 25 Ronneby
+46 455 38 50 00
http://www.tek.bth.se/
Authors e-mail: quang.trung.duong@bth.se
Language: English
Abstract: In this paper, we analyze the pairwise error probability (PEP) of distributed space-time codes, in which the source and the relay generate Alamouti space--time code in a distributed fashion. We restrict our attention to the space-time code construction for Protocol III in [1]. In particular, we derive two closed-form approximations for PEP when the relay is either close to the destination or source and an upper bound for any position of the relay. Using the alternative definition of $Q$-function, we can express these PEPs in terms of finite integral whose integrand is composed of trigonometric functions. We further show that with only one relay assisted source-destination link, system still achieves diversity order of two, assuming single-antenna terminals. We also perform Monte-Carlo simulations to verify the analysis.
Subject: Signal Processing\General
Telecommunications\General
Keywords: Distributed space-time codes, relay channels, pairwise error probability (PEP)
Note: Link to the paper: http://www.springerlink.com/content/h341431140122024/ Published online: 13 November 2008
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