DC offset elimination in wireless optical channel estimation by employing implicit sequence

doi:10.3788/OPE.20172510.2759

	DC offset elimination in wireless optical channel estimation by employing implicit sequence
	Wang, Hui-Qin; Hu, Qiu; Huang, Rui; Cao, Ming-Hua
刊名	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
	2017-10-01
卷号	25 期号:10 页码:2759-2766
关键词	Channel capacity Channel estimation Computational complexity Errors Mean square error Optical communication Signal to noise ratio Channel estimation method DC offsets Implicit training Maximum output Optimal power allocation Power allocations Wireless optical channels Wireless optical communication
ISSN号	1004924X
DOI	10.3788/OPE.20172510.2759
英文摘要	For the DC offsets caused by traditional implicit sequence based channel estimation in wireless optical communication links, a novel implicit sequence based channel estimation method was proposed to eliminate the DC offsets. Some key factors affecting the system performance were investigated. The maximum output Signal-to-Noise Ratio (SNR) criterion was used to derive the optimal power allocation factor. Then, a simulation experiment was performed to evaluate its mean square error, bit error rate and computational complexity. The results show that the proposed method effectively eliminates the influence of DC offset. on the system performance. Compared to the traditional method, the mean square error is reduced by about 1/2 and the bit error rate is significantly improved. Under the optimal power distribution conditions, when the bit error rate is 4×10-3, the SNRs of 0.2 and 0.4 DC offset scenarios are improved by about 2 dB and 6d B, respectively, while the computational complexity is only increased by 14.2%. © 2017, Science Press. All right reserved.
语种	中文
出版者	Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114068]
专题	计算机与通信学院电气工程与信息工程学院
作者单位	College of Computer and Communication, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wang, Hui-Qin,Hu, Qiu,Huang, Rui,et al. DC offset elimination in wireless optical channel estimation by employing implicit sequence[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2017,25(10):2759-2766.
APA	Wang, Hui-Qin,Hu, Qiu,Huang, Rui,&Cao, Ming-Hua.(2017).DC offset elimination in wireless optical channel estimation by employing implicit sequence.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,25(10),2759-2766.
MLA	Wang, Hui-Qin,et al."DC offset elimination in wireless optical channel estimation by employing implicit sequence".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 25.10(2017):2759-2766.