PN sequence based Doppler and channel estimation for underwater acoustic OFDM communication

doi:10.1109/ICSPCC.2016.7753719

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋物理与遥感研究室

	PN sequence based Doppler and channel estimation for underwater acoustic OFDM communication
	Liu, Lanjun 1; Zhang, Yonglei 1; Zhang, Pengcheng 1; Zhou, Lin 1; Li, Jianfen 1; Jin, Jiucai 2; Zhang, Jie 2; Lv, Zhichao 3
	2016-11-22
会议日期	8 5, 2016 - 8 8, 2016
会议地点	Hong Kong, China
关键词	Underwater acoustic communication OFDM PN sequence Doppler estimation Channel estimation
DOI	10.1109/ICSPCC.2016.7753719
英文摘要	Aiming at the requirement of Doppler and channel estimation which applied to underwater mobile communication with orthogonal frequency division multiplexing (OFDM) technology, a PN sequence based method for Doppler and channel estimation is proposed, an underwater acoustic OFDM communication system structure is given and a block data frame based on PN sequence is designed. For the Doppler estimation and compensation, a delay cross-correlation method is adopted to estimate and compensate the Doppler factor by utilizing the orthogonality of PN sequence, and joints PN sequence and cyclic prefix for carrier frequency offset (CFO) estimation and compensation. While in the aspect of channel estimation, decision feedback channel estimation method based on PN sequence is used. Simulation results show the effectiveness of the proposed Doppler and channel estimation method. Compared with the traditional LFM cross-correlation method, the delay cross-correlation method based on PN sequence decreases two orders of magnitude of Doppler factor estimation error. The constellation map of joint CFO estimation based on PN sequence and cyclic prefix is convergent obviously. The decision feedback channel estimation based on PN sequence could obtain about 6dB performance gains. © 2016 IEEE.
会议录	ICSPCC 2016 - IEEE International Conference on Signal Processing, Communications and Computing, Conference Proceedings
会议录出版者	IEEE
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
语种	英语
WOS研究方向	Engineering
WOS记录号	WOS:000389649700134
内容类型	会议论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/7173]
专题	业务部门_海洋物理与遥感研究室
作者单位	1.College of Engineering, Ocean University of China, Qingdao, China; 2.First Institute of Oceanography, State Oceanic Administration, Qingdao, China; 3.College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin, China
推荐引用方式 GB/T 7714	Liu, Lanjun,Zhang, Yonglei,Zhang, Pengcheng,et al. PN sequence based Doppler and channel estimation for underwater acoustic OFDM communication[C]. 见:. Hong Kong, China. 8 5, 2016 - 8 8, 2016.