Spatial correlation for transmitters in spatial MIMO optical wireless   links with Gaussian-beam waves and aperture effects

doi:10.1016/j.optcom.2012.09.022

CORC > 北京大学 > 信息科学技术学院

	Spatial correlation for transmitters in spatial MIMO optical wireless links with Gaussian-beam waves and aperture effects
	Chen, Zhixiao ; Yu, Song ; Wang, Tianyi ; Wu, Guohua ; Guo, Hong ; Gu, Wanyi
刊名	optics communications
	2013
关键词	Gaussian beam Spatial correlation Spatial diversity Free space optical communication ATMOSPHERIC-TURBULENCE SCINTILLATION INDEX COMMUNICATION DIVERSITY PERFORMANCE POWER FLUCTUATIONS TRANSMISSION STATISTICS SPECTRUM
DOI	10.1016/j.optcom.2012.09.022
英文摘要	The spatial correlation between signals arising from a pair of constituent transmitters in a spatial multiple-input-multiple-output (MIMO) system is investigated. General formulations for the spatial correlation functions considering Gaussian-beam waves and receiver aperture effects are given under weak turbulence condition. Based on the analytical expressions, we find that spatial correlation decreases with separation distance, but increases with receiver aperture sizes, turbulence strength and wavelengths. In particular, receiver aperture averaging effects can evidently increase the correlation. It is also shown that decreasing the beam widths can generally reduce the spatial correlation, and convergent beams have lower spatial correlation than their collimated counterparts. It is found that Gaussian beams with the Fresnel ratios larger than 1 have advantages in reducing both the spatial correlation and the beam scintillations. (C) 2012 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000312688300003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Optics; SCI(E); EI; 9; ARTICLE; 12-18; 287
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/227038]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Chen, Zhixiao,Yu, Song,Wang, Tianyi,et al. Spatial correlation for transmitters in spatial MIMO optical wireless links with Gaussian-beam waves and aperture effects[J]. optics communications,2013.
APA	Chen, Zhixiao,Yu, Song,Wang, Tianyi,Wu, Guohua,Guo, Hong,&Gu, Wanyi.(2013).Spatial correlation for transmitters in spatial MIMO optical wireless links with Gaussian-beam waves and aperture effects.optics communications.
MLA	Chen, Zhixiao,et al."Spatial correlation for transmitters in spatial MIMO optical wireless links with Gaussian-beam waves and aperture effects".optics communications (2013).