Performance analysis and optimal detector of wireless optical space-time shift keying over the Gamma-Gamma turbulence channel

doi:10.1364/AO.419484

	Performance analysis and optimal detector of wireless optical space-time shift keying over the Gamma-Gamma turbulence channel
	Zhang, Yue 1; Wang, Huiqin 1; Ma, Xuemei 2; Zhao, Li 3; Mao, Yicong 1
刊名	APPLIED OPTICS
	2021
卷号	60 期号:12 页码:3501-3509
关键词	Bit error rate Computational complexity Maximum likelihood Monte Carlo methods Bit error rate (BER) performance Decoding algorithm Maximum-likelihood sequence detection Orthogonal design Orthogonal matching pursuit Performance analysis Space-shift keying Space-Time Shift Keying
ISSN号	1559-128X
DOI	10.1364/AO.419484
英文摘要	In this paper, an optical space-time shift-keying (OSTSK) scheme based on the space-time dispersion matrix block of orthogonal design and laser selection technology is proposed to improve the transmission bits per symbol (TBS) and bit error rate (BER) performance of the traditional optical space shift keying (OSSK). The average BER of OSTSK is investigated over the Gamma-Gamma channel and simulated using the Monte Carlo method. The results show that the proposed scheme has the highest TBS and best BER performance compared with OSSK and optical generalized space shift keying. In addition, we propose a threshold judgment orthogonal matching pursuit (TJ-OMP)-decoding algorithm near-optimal detector for the OSTSK scheme to reduce the computational complexity of the system. For the OSTSK system with N-t = 4 and N-r = 4, when the reasonable threshold is selected as theta = 1.5, the computational complexity of OSTSK-(TJ-OMP) is 74.3% lower than that of the OSTSK-maximum likelihood sequence detection (OSTSK-MLSD), while the signal-to-noise ratio of the OSTSK-(TJ-OMP) decreases by about 1.5 dB at BER = 1 x 10(-3). (C) 2021 Optical Society of America
WOS研究方向	Optics
语种	英语
出版者	OPTICAL SOC AMER
WOS记录号	WOS:000642065200031
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148250]
专题	计算机与通信学院外国语学院
作者单位	1.Lanzhou Univ Technol, Sch Comp & Commun, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Foreign Languages, Lanzhou 730050, Peoples R China; 3.Xian Technol Univ, Sch Elect Informat Engn, Xian 710021, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yue,Wang, Huiqin,Ma, Xuemei,et al. Performance analysis and optimal detector of wireless optical space-time shift keying over the Gamma-Gamma turbulence channel[J]. APPLIED OPTICS,2021,60(12):3501-3509.
APA	Zhang, Yue,Wang, Huiqin,Ma, Xuemei,Zhao, Li,&Mao, Yicong.(2021).Performance analysis and optimal detector of wireless optical space-time shift keying over the Gamma-Gamma turbulence channel.APPLIED OPTICS,60(12),3501-3509.
MLA	Zhang, Yue,et al."Performance analysis and optimal detector of wireless optical space-time shift keying over the Gamma-Gamma turbulence channel".APPLIED OPTICS 60.12(2021):3501-3509.