Unequal Error Protection for Wireless Multimedia Transmission in Decode-and-Forward Relay Networks
| Document type: | Conference Papers |
|---|---|
| Peer reviewed: | Yes |
| Author(s): | Quang Trung Duong, Ulrich Engelke, Hans-Jürgen Zepernick |
| Title: | Unequal Error Protection for Wireless Multimedia Transmission in Decode-and-Forward Relay Networks |
| Conference name: | IEEE Radio and Wireless Symposium |
| Year: | 2009 |
| ISBN: | 978-1-4244-2699-7 |
| Publisher: | IEEE |
| City: | San Diego, CA |
| ISI number: | 000273914400169 |
| 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 propose an unequal error protection (UEP) scheme for multimedia transmission over wireless decode-and-forward (DF) relay networks. We prove that relay selection combining (R-SC) mode yields a better error rate performance than all-participate relays, i.e., distributed spacetime codes (DSTC) and orthogonal transmission with maximum ratio combining (OT-MRC) at the destination. Hence, we apply the R-SC scheme for transmitting bit sequence with high priority while the cooperative spatial multiplexing scheme is employed for the bit-stream with low priority. With this strategy, we achieve the maximum spatial diversity gain for high priority data and a high spatial multiplexing gain for low priority data. Monte- Carlo simulations and analytical results are shown to validate the proposed UEP scheme. |
| Subject: | Signal Processing\General Telecommunications\General |
