Channel Capacity Analysis of FTN-OWC System Under Exponentiated Weibull Channel

doi:10.3788/AOS202040.1506004

	Channel Capacity Analysis of FTN-OWC System Under Exponentiated Weibull Channel
	Cao, Minghua; Kang, Zhongjiang; Wu, Xin; Dou, Hongxia; Wang, Huiqin
刊名	Guangxue Xuebao/Acta Optica Sinica
	2020-08-10
卷号	40 期号:15
关键词	Atmospheric turbulence Channel capacity Light transmission Modulation Signal to noise ratioAcceleration factors Closed-form expression Exponential-Weibull Exponentiated Weibull Outage probability Turbulence intensity Wireless optical communication Wireless optical communication systems
ISSN号	02532239
DOI	10.3788/AOS202040.1506004
英文摘要	Faster-than-Nyquist technology can significantly improve the transmission rate of wireless optical communication system, but the atmospheric turbulence seriously affects the performance of faster-than-Nyquist wireless optical communication (FTN-OWC) system. In this paper, the influence of light intensity fading in exponential Weibull turbulent channel on the ergodic capacity and outage capacity of the FTN-OWC system is studied in detail. Based on pulse amplitude modulation, the ergodic capacity upper bound and outage probability of the FTN-OWC system are derived, and its closed-form expression is obtained by using the generalized hypergeometric method. In addition, the impact of acceleration factor, roll-off coefficient, turbulence intensity, and receiving aperture on the ergodic capacity and outage capacity is discussed. The results show that the ergodic capacity and outage capacity are reduced when the turbulence increases, but they can be improved by increasing the receiving aperture and roll-off coefficient. In the case of weak turbulence, the ergodic capacity of the FTN-OWC system is improved by 16.43% compared to the Nyquist wireless optical communication system using the same modulation method when the receiving aperture is 25 mm, the roll-off coefficient is 0.5, the acceleration factor is 2/3, and the average signal to noise ratio is 30 dB. © 2020, Chinese Lasers Press. All right reserved.
WOS研究方向	Optics
语种	中文
出版者	Chinese Optical Society
WOS记录号	WOS:000619234200009
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/132366]
专题	计算机与通信学院石油化工学院
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	Cao, Minghua,Kang, Zhongjiang,Wu, Xin,et al. Channel Capacity Analysis of FTN-OWC System Under Exponentiated Weibull Channel[J]. Guangxue Xuebao/Acta Optica Sinica,2020,40(15).
APA	Cao, Minghua,Kang, Zhongjiang,Wu, Xin,Dou, Hongxia,&Wang, Huiqin.(2020).Channel Capacity Analysis of FTN-OWC System Under Exponentiated Weibull Channel.Guangxue Xuebao/Acta Optica Sinica,40(15).
MLA	Cao, Minghua,et al."Channel Capacity Analysis of FTN-OWC System Under Exponentiated Weibull Channel".Guangxue Xuebao/Acta Optica Sinica 40.15(2020).