Performance of DCSK Cooperative Communication Systems Over Multipath Fading Channels

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	Performance of DCSK Cooperative Communication Systems Over Multipath Fading Channels
	Xu, Weikai ; Wang, Lin ; Chen, Guanrong ; Xu WK(徐位凯) ; Wang L(王琳)
刊名	http://dx.doi.org/10.1109/TCSI.2010.2071730
	2011-01
关键词	WIRELESS COMMUNICATIONS CHAOTIC COMMUNICATIONS FM-DCSK DIVERSITY MODULATIONS IMPLEMENTATION NETWORKS DESIGN SPREAD CODES
英文摘要	City University of Hong Kong [7002453]; National Natural Science Foundation of China [60972053, 61001073]; A differential chaos shift keying cooperative communication (DCSK-CC) system with two users is proposed in this paper, which has an orthogonal subchannel in broadcast phase and cooperative phase through orthogonal Walsh code sequences as its multiaccess scheme. The single relay cooperative network with decode-and-forward relay is investigated in the proposed system according to two cooperation protocols, namely, conventional cooperation and space-time cooperation. Unlike conventional CDMA cooperative communication (CDMA-CC) systems, quite surprisingly power control devices that consume more energy to mitigate near-far effects can be avoided in the proposed system, which is of great importance to energy-constrained networks such as wireless sensor networks. Simulation results demonstrate that, through a conventional cooperation mechanism, the proposed system has a prominent advantage of good bit-error-probability (BEP) performance over the CDMA-CC systems that have a single path correlation receiver, at the same data rate with a high SNR range over multipath Rayleigh fading channels. Meanwhile, it is found that conventional cooperation is a better cooperation strategy relative to space-time cooperation in the proposed system. In addition, a lower bound of BEP performance is derived and verified by simulations over independent three-ray Rayleigh fading channels.
语种	英语
出版者	IEEE T CIRCUITS-I
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/92450]
专题	信息技术－已发表论文
推荐引用方式 GB/T 7714	Xu, Weikai,Wang, Lin,Chen, Guanrong,et al. Performance of DCSK Cooperative Communication Systems Over Multipath Fading Channels[J]. http://dx.doi.org/10.1109/TCSI.2010.2071730,2011.
APA	Xu, Weikai,Wang, Lin,Chen, Guanrong,徐位凯,&王琳.(2011).Performance of DCSK Cooperative Communication Systems Over Multipath Fading Channels.http://dx.doi.org/10.1109/TCSI.2010.2071730.
MLA	Xu, Weikai,et al."Performance of DCSK Cooperative Communication Systems Over Multipath Fading Channels".http://dx.doi.org/10.1109/TCSI.2010.2071730 (2011).