Free-Space Optical Communication Using Coherent Detection and Double Adaptive Detection Thresholds

doi:10.1109/jphot.2018.2885542

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	Free-Space Optical Communication Using Coherent Detection and Double Adaptive Detection Thresholds
	L.Li; T.W.Geng; Y.Wang; X.L.Li; J.B.Wu; Y.T.Li; S.Ma; S.J.Gao
	2019
发表期刊	Ieee Photonics Journal
ISSN	1943-0655
卷号	11 期号:1 页码:17
摘要	In this paper, ON-OFF Keying free-space optical (FSO) communication with coherent detection and double adaptive detection thresholds is proposed. The 3-bit encoding and double adaptive detection thresholds presented in the scheme can significantly improve the system performance, and there is no need of acquiring the instantaneous channel state information and probability density function (pdf) of the turbulence model. In order to enhance the accuracy of the threshold even further, the decision-aided method is offered to set the second detection threshold. The pdfs of the detection thresholds and the average bit error rate (BER) of the system are theoretically derived. Numerical studies show that the performance of the system is comparable to the performance of the idealized adaptive detection system and the loss of the signal-to-noise ratio (SNR) performance is only 1 dB at a BER of 10(-9) over a lognormal turbulence channel with normalized standard deviation of irradiance sigma = 0.25 and phase noise with normalized variance sigma(2)(phi)= 0.07. Hence, this scheme can contribute to the performance improvement of the FSO system and its practical realization.
关键词	Coherent communication,free space communication,performance improvement,modulation,links,capacity,systems,Engineering,Optics,Physics
DOI	10.1109/jphot.2018.2885542
URL	查看原文
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63263
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	L.Li,T.W.Geng,Y.Wang,et al. Free-Space Optical Communication Using Coherent Detection and Double Adaptive Detection Thresholds[J]. Ieee Photonics Journal,2019,11(1):17.
APA	L.Li.,T.W.Geng.,Y.Wang.,X.L.Li.,J.B.Wu.,...&S.J.Gao.(2019).Free-Space Optical Communication Using Coherent Detection and Double Adaptive Detection Thresholds.Ieee Photonics Journal,11(1),17.
MLA	L.Li,et al."Free-Space Optical Communication Using Coherent Detection and Double Adaptive Detection Thresholds".Ieee Photonics Journal 11.1(2019):17.

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