Analyze UCA Based OAM Communication From Spatial Correlation

doi:10.1109/ACCESS.2020.3030053

	Analyze UCA Based OAM Communication From Spatial Correlation
	Wei Yu1,2 ; Bin Zhou 1; Zhiyong Bu 1; Shuang Wang 1
	2020
发表期刊	IEEE ACCESS (IF:3.4[JCR-2023],3.7[5-Year])
ISSN	2169-3536
卷号	8
发表状态	已发表
DOI	10.1109/ACCESS.2020.3030053
摘要	Orbital Angular Momentum(OAM) of Electromagnetic(EM) wave can be seen as a new degree of freedom(DoF) for wireless communication besides time and frequency. Uniform Circular Antenna Array(UCA) fed with signal of equal amplitude and equal phase difference on each antenna element is a good OAM generation method on radio frequency(RF) band. Previous researches have shown that UCA based OAM communication system is essentially a special case of Multiple-input Multiple-output(MIMO) system and elaborated the viewpoint from different perspectives. In this paper, we demonstrate the above viewpoint from a new perspective. Specifically, for UCA based OAM communication in ideal(line of sight(Los) and coaxial) channel, we systematically analyze the variations of radiation pattern and spatial correlation of UCA under different radius and distance settings. To extend our demonstration, we first simulate the channel capacity variation with the adjustment of UCA radius and distance, and then simulate the channel capacity of both UCA and uniform linear antenna array(ULA) based communication systems, and find that ULA can also achieve similar capacity performance as UCA when spatial distance scale is similar. As is known that MIMO communication system provides spatial DoF besides time and frequency, we can conclude that mode DoF of UCA based OAM essentially originates spatial DoF of UCA based on the analysis in the paper.
关键词	OAM UCA radiation pattern spatial correlation DoF channel capacity
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收录类别	SCI ; SCIE ; EI
语种	英语
来源库	IEEE
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/123668
专题	信息科学与技术学院信息科学与技术学院_硕士生
作者单位	1.Key Laboratory of Wireless Sensor Network and Communications, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China 2.School of Information Science and Technology, ShanghaiTech University, Shanghai, China
第一作者单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Wei Yu,Bin Zhou,Zhiyong Bu,et al. Analyze UCA Based OAM Communication From Spatial Correlation[J]. IEEE ACCESS,2020,8.
APA	Wei Yu,Bin Zhou,Zhiyong Bu,&Shuang Wang.(2020).Analyze UCA Based OAM Communication From Spatial Correlation.IEEE ACCESS,8.
MLA	Wei Yu,et al."Analyze UCA Based OAM Communication From Spatial Correlation".IEEE ACCESS 8(2020).