Viterbi equalization for long-distance, high-speed underwater laser communication

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 空间激光信息技术研究中心

	Viterbi equalization for long-distance, high-speed underwater laser communication
	Hu, Siqi; Mi, Le; Zhou, Tianhua; Chen, Weibiao
刊名	Opt. Eng.
	2017
卷号	56 期号:7
通讯作者	siomzth@siom.ac.cn
英文摘要	In long-distance, high-speed underwater laser communication, because of the strong absorption and scattering processes, the laser pulse is stretched with the increase in communication distance and the decrease in water clarity. The maximum communication bandwidth is limited by laser-pulse stretching. Improving the communication rate increases the intersymbol interference (ISI). To reduce the effect of ISI, the Viterbi equalization (VE) algorithm is used to estimate the maximum-likelihood receiving sequence. The Monte Carlo method is used to simulate the stretching of the received laser pulse and the maximum communication rate at a wavelength of 532 nm in Jerlov IB and Jerlov II water channels with communication distances of 80, 100, and 130 m, respectively. The high-data rate communication performance for the VE and hard-decision algorithms is compared. The simulation results show that the VE algorithm can be used to reduce the ISI by selecting the minimum error path. The trade-off between the high-data rate communication performance and minor bit-error rate performance loss makes VE a promising option for applications in long-distance, high-speed underwater laser communication systems.
收录类别	SCI
资助信息	National High Technology Research and Development Program [2014AA093301]
WOS记录号	WOS:000407370200032
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28448]
专题	上海光学精密机械研究所_空间激光信息技术研究中心
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Hu, Siqi,Mi, Le,Zhou, Tianhua,et al. Viterbi equalization for long-distance, high-speed underwater laser communication[J]. Opt. Eng.,2017,56(7).
APA	Hu, Siqi,Mi, Le,Zhou, Tianhua,&Chen, Weibiao.(2017).Viterbi equalization for long-distance, high-speed underwater laser communication.Opt. Eng.,56(7).
MLA	Hu, Siqi,et al."Viterbi equalization for long-distance, high-speed underwater laser communication".Opt. Eng. 56.7(2017).