CSI feedback-based CS for underwater acoustic adaptive modulation OFDM system with channel prediction

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	CSI feedback-based CS for underwater acoustic adaptive modulation OFDM system with channel prediction
	Kuai Xiao-yan ; Sun Hai-xin ; Qi Jie ; Cheng En ; Xu Xiao-ka ; Guo Yu-hui ; Chen You-gan ; Sun HX(孙海信) ; Qi J(齐洁) ; Cheng E(程恩) ; Chen YG(陈友淦)
刊名	http://dx.doi.org/10.1007/s13344-014-0031-6
	2014
关键词	TRANSMISSION
英文摘要	Research Fund for the Visiting Scholar Program by the China Scholarship Council [2011631504]; Fundamental Research Funds for the Central Universities [201112G020]; National Natural Science Foundation of China [41176032]; China Scholarship Council; In this paper, we investigate the performance of adaptive modulation (AM) orthogonal frequency division multiplexing (OFDM) system in underwater acoustic (UWA) communications. The aim is to solve the problem of large feedback overhead for channel state information (CSI) in every subcarrier. A novel CSI feedback scheme is proposed based on the theory of compressed sensing (CS). We propose a feedback from the receiver that only feedback the sparse channel parameters. Additionally, prediction of the channel state is proposed every several symbols to realize the AM in practice. We describe a linear channel prediction algorithm which is used in adaptive transmission. This system has been tested in the real underwater acoustic channel. The linear channel prediction makes the AM transmission techniques more feasible for acoustic channel communications. The simulation and experiment show that significant improvements can be obtained both in bit error rate (BER) and throughput in the AM scheme compared with the fixed Quadrature Phase Shift Keying (QPSK) modulation scheme. Moreover, the performance with standard CS outperforms the Discrete Cosine Transform (DCT) method.
语种	英语
出版者	CHINA OCEAN PRESS
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/92681]
专题	信息技术－已发表论文
推荐引用方式 GB/T 7714	Kuai Xiao-yan,Sun Hai-xin,Qi Jie,et al. CSI feedback-based CS for underwater acoustic adaptive modulation OFDM system with channel prediction[J]. http://dx.doi.org/10.1007/s13344-014-0031-6,2014.
APA	Kuai Xiao-yan.,Sun Hai-xin.,Qi Jie.,Cheng En.,Xu Xiao-ka.,...&陈友淦.(2014).CSI feedback-based CS for underwater acoustic adaptive modulation OFDM system with channel prediction.http://dx.doi.org/10.1007/s13344-014-0031-6.
MLA	Kuai Xiao-yan,et al."CSI feedback-based CS for underwater acoustic adaptive modulation OFDM system with channel prediction".http://dx.doi.org/10.1007/s13344-014-0031-6 (2014).