Adaptive Transmission Scheme for Wireless Cooperative Communications

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Quang Trung Duong, Hans-Jürgen Zepernick
Title: Adaptive Transmission Scheme for Wireless Cooperative Communications
Conference name: IEEE Personal, Indoor and Mobile Communications Symposium (PIMRC09)
Year: 2009
Pagination: 1958-1962
ISBN: 978-1-4244-5123-4
Publisher: IEEE
City: Tokyo - Japan
URI/DOI: 10.1109/PIMRC.2009.5450365
ISI number: 000305824601194
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
Authors e-mail:
Language: English
Abstract: An adaptive transmission scheme for cooperative communications is proposed in this paper. Communication protocols with amplify-and-forward relays based on the distributed-Alamouti space-time code (achieving spatial diversity gain) and cooperative spatial multiplexing (C-SM) (pertaining spatial multiplexing gain)
are considered. Specifically, under a fix transmission rate, we use adaptively the cooperative diversity (C-DIV) and C-SM according to channel conditions. With this strategy, either C-DIV with higher order modulation or C-SM with lower order modulation can be properly selected to enhance the error rate performance. The proposed adaptive protocol is shown to provide superior performance compared to C-DIV and C-SM.
Subject: Signal Processing\General
Keywords: Adaptive transmission, cooperative diversity, cooperative spatial multiplexing