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Cooperative Diversity Based on Interleavers and Its efficient Algorithm in Amplify-And-Forward Relay Networks  

Yan, Yier (Chonbuk National University)
Jo, Gye-Mun (Chonbuk National University)
Balakannan, S.P. (Chonbuk National University)
Lee, Moon-Ho (Chonbuk National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.46, no.6, 2009 , pp. 94-102 More about this Journal
Abstract
In [1], the authors have proposed a novel scheme to achieve full diversity and to combat the time delays from each relay node, but decode-and-forward (DF) model operation mode puts more processing burden on the relay. In this paper, we not only extend their model into amplify and forward (AF) model proposed in [2],[3], but also propose an efficient decoding algorithm, which is able to order the joint channel coefficients of overall channel consisting of source-relay link and relay-destination link and cancels the previous decoded symbols at the next decoding procedure. The simulation results show that this algorithm efficiently improves its performance achieving 2-3dB gain compared to [1] in high SNR region and also useful to DF achieving more than 3dB gain compared to an original algorithm.
Keywords
Interleaver; fading channels; relay networks; amplify-and-forward;
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1 V. Tarokh, N. Seshadri, and A. R. Calderbank, "Space time codes for high data rate wireless communication: performance criterion and code construction," IEEE Trans. Inform. Theory, vol. 44, pp. 744-765, 1998   DOI   ScienceOn
2 J. N. Laneman, D. N. C. Tse, and G.W.Wornell, "Cooperative diversity in wireless networks: Efficient protocols and outage Behavior," IEEE Trans. Inform. Theory, vol. 50, pp. 3062-3080, Dec. 2004   DOI   ScienceOn
3 Y. Jing and B. Hassibi, "Distributed space-time coding in wireless relay networks," IEEE Trans. Wireless Commun., vol. 5, pp. 3524-3536, Dec. 2006   DOI   ScienceOn
4 Chirag S. Patel, G.L.St$\ddot{u}$ber, 'Channel Estimation for Amplify and Forward Relay Based Cooperation Diversity Systems,' IEEE Trans. Wireless Commun., vol.6, pp. 2348-2356, June. 2007
5 I. E. Telatar, "Capacity of multi-antenna Gaussian channels," Eur. Trans. Telecommun., vol. 10, pp. 585-595, Nov. 1999   DOI   ScienceOn
6 Y. Shang, X.-G. Xia, "Shift-Full-Rank Matrices and Applications in Space-Time Trellis Codes for Relay Networks with Asynchronous Cooperative Diversity," IEEE Trans. Inform. Theory, vol.52, no.7, pp.3153-3168, July 2006   DOI   ScienceOn
7 L. Ping, L. Liu, K. Y. Wu, and W. K. Leung, "Interleave-Division Multiple-Access," IEEE Trans. Wireless Commun., vol.5, no.4, pp.938-947, April 2006   DOI   ScienceOn
8 Zhaoxi. Fang, Liangbin Li and Zongxin Wang, 'An Interleaver-based Asynchronous cooperative Diversity Scheme for Wireless Relay Networks' in Proc. IEEE Int. Conf. Commun.(ICC), Beijing, China, May 2008