Unequal Error Protection for Wireless Multimedia Transmission in Decode-and-Forward Relay Networks

被引：0
|
作者：
Duong, Trung Q. [1 ]
Engelke, Ulrich [1 ]
Zepernick, Hans-Jurgen [1 ]
机构：
[1] Blekinge Inst Technol, SE-37225 Ronneby, Sweden
来源：
RWS: 2009 IEEE RADIO AND WIRELESS SYMPOSIUM | 2009年
关键词：
MIMO SYSTEMS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 space-time 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.
引用
收藏
页码：671 / 674
页数：4
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