Layered Optical Spatial Modulation in Turbulent Channels

doi:10.3788/AOS201939.0706001

	Layered Optical Spatial Modulation in Turbulent Channels
	Wang, Huiqin; Li, Yating; Cao, Minghua; Bao, Zhongxian
刊名	Guangxue Xuebao/Acta Optica Sinica
	2019-07-10
卷号	39 期号:7
关键词	Amplitude modulation Efficiency Errors Mapping Monte Carlo methods Optical communication Optical signal processing Pulse amplitude modulation Pulse position modulation Bit mapping Free Space Optical communication Pulse amplitude modulations (PAM) Spatial modulations Spectral efficiencies Transmission rates Turbulent channels Wireless optical communication
ISSN号	02532239
DOI	10.3788/AOS201939.0706001
英文摘要	Layered spatial modulation technique is introduced into free space optical communications. A layered optical spatial modulation (LOSM) system suitable for turbulent channels is proposed by simultaneously activating two lasers using pulse position modulation (PPM) and pulse amplitude modulation (PAM), respectively. The principle of layer mapping and bit mapping is described in detail, based on which the bit error rate expression of the proposed LOSM system is derived, and the Monte Carlo simulation is utilized to verify its reliability. The simulation results show that the LOSM system can greatly improve the spectral efficiency of the system. For example, the spectral efficiency of the (5,4,2,4)-LOSM system is more than 9 times that of the (8,4,16)-SPPM (spatial pulse position modulation) system for the same transmission rate. When the spectral efficiency is 4 bit•s-1•Hz-1, the transmission rate of the (5,4,2,4)-LOSM system is nearly twice that of the (8,4,2)-SPAM (spatial pulse amplitude modulation) system, and the two systems have the same bit error performance. © 2019, 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:000620139400031
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113923]
专题	计算机与通信学院
作者单位	School of Computer and Communication, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China
推荐引用方式 GB/T 7714	Wang, Huiqin,Li, Yating,Cao, Minghua,et al. Layered Optical Spatial Modulation in Turbulent Channels[J]. Guangxue Xuebao/Acta Optica Sinica,2019,39(7).
APA	Wang, Huiqin,Li, Yating,Cao, Minghua,&Bao, Zhongxian.(2019).Layered Optical Spatial Modulation in Turbulent Channels.Guangxue Xuebao/Acta Optica Sinica,39(7).
MLA	Wang, Huiqin,et al."Layered Optical Spatial Modulation in Turbulent Channels".Guangxue Xuebao/Acta Optica Sinica 39.7(2019).