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 |
| Publisher: | IEEE |
| City: | Tokyo - Japan |
| 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: | 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 Telecommunications\General |
| Keywords: | Adaptive transmission, cooperative diversity, cooperative spatial multiplexing |
