BER performance of Faster-than-Nyquist communications under Log-normal turbulence channel

doi:10.3788/OPE.20202802.0465

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	BER performance of Faster-than-Nyquist communications under Log-normal turbulence channel
	M.-H., Cao; X., Wu; S.-X., Yang; K.-J., Jia
刊名	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
	2020-02-01
卷号	28 期号:2 页码:465-473
关键词	Atmospheric thermodynamics Atmospheric turbulence Bit error rate Efficiency Optical communication Signal to noise ratio Atmospheric optical communication Atmospheric optical transmissions BER performance Error performance Log-normal Modulation technologies Optical transmission systems Spectral efficiencies
ISSN号	1004924X
DOI	10.3788/OPE.20202802.0465
英文摘要	The combination of Faster-than-Nyquist (FTN) theory with modulation technology can effectively improve the spectral efficiency of atmospheric communication systems. In this paper, the FTN theory was introduced to atmospheric optical communications, and an FTN optical transmission system suitable for log-normal turbulence channel was proposed. Moreover, the equation for the Bit Error Rate (BER) of the proposed system was derived and further analyzed using the MonteCarlo method. The results indicate that the FTN scheme can considerably improve the spectral efficiency of atmospheric optical transmission systems. For example, when the signal-to-noise ratio is 18 dB, and the S.I. is 0.4, the spectral efficiency can reach 1.7 Baud/Hz, whereas it is only 1.56 Baud/Hz without the FTN scheme. Regarding the effects of atmospheric turbulence on system BER performance, when the S.I. is 0.4 and BER is 3.8×10-3, the error performance decreases by approximately 1 dB. Compared with the significant improvement in spectral efficiency, the decrease in BER performance is worthwhile. Therefore, FTN technology can be introduced into atmospheric optical transmission systems to improve spectral efficiency. © 2020, 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/115126]
专题	兰州理工大学
作者单位	School of Computer and Communication, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	M.-H., Cao,X., Wu,S.-X., Yang,et al. BER performance of Faster-than-Nyquist communications under Log-normal turbulence channel[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2020,28(2):465-473.
APA	M.-H., Cao,X., Wu,S.-X., Yang,&K.-J., Jia.(2020).BER performance of Faster-than-Nyquist communications under Log-normal turbulence channel.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,28(2),465-473.
MLA	M.-H., Cao,et al."BER performance of Faster-than-Nyquist communications under Log-normal turbulence channel".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 28.2(2020):465-473.