Performance analysis of distributed turbo coded scheme with two ordered best relays

被引:6
作者
Kaya, Hakan [1 ]
Ozturk, Ertan [1 ]
机构
[1] Bulent Ecevit Univ, Dept Elect & Elect Engn, TR-67100 Zonguldak, Turkey
关键词
turbo codes; relay networks (telecommunication); diversity reception; error statistics; convolutional codes; channel coding; wireless channels; channel impairment reduction; wireless communication systems; DTC scheme; pairwise error probability; upper bounded closed form expression; frame error rate; parity sequences; systematic information sequence; recursive systematic convolutional codes; rate; 1; 3 parallel concatenated code; two ordered best relays; distributed turbo coded scheme; performance analysis; COOPERATIVE DIVERSITY;
D O I
10.1049/iet-com.2014.0815
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 study, the authors propose a distributed turbo coded (DTC) scheme utilising two best relays selected among multi-relays. In this scheme, the considered turbo encoder is a rate 1/3 parallel concatenated code composed of two recursive systematic convolutional codes. The systematic information sequence is transmitted directly to a destination, whereas the two parity sequences, one of which is interleaved, are transmitted through the two selected best relays. The authors derive a union bound for the frame error rate including an upper bounded closed form expression for the pairwise error probability of the DTC scheme with two ordered best relays (DTC-TBR) by utilising order of statistic, then the authors verify the analytical expression by simulations. Numerical results show that the proposed scheme outperforms the DTC scheme with a single best relay (DTC-SBR) because of the more selection gain of the DTC-TBR compared with those of DTC-SBR with the rise of number of relays.
引用
收藏
页码:638 / 648
页数:11
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