Degrees of Freedom of MIMO Multiway Relay Channel With Clustered Pairwise Exchange

doi:10.1109/JSAC.2014.2384352

	Degrees of Freedom of MIMO Multiway Relay Channel With Clustered Pairwise Exchange
	Rui Wang 1; Xiaojun Yuan2 ; Meixia Tao 3
	2015-02
发表期刊	IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS (IF:13.8[JCR-2023],13.1[5-Year])
ISSN	0733-8716
卷号	33 期号:2 页码:337-351
发表状态	已发表
DOI	10.1109/JSAC.2014.2384352
摘要	In this paper, we consider a symmetric multiple-input-multiple-output (MIMO) multiway relay channel (mRC) with L clusters and K users per cluster operating in clustered pairwise data exchange. Each user is equipped with M antennas, and the relay is equipped with N antennas. The degrees of freedom (DoF) of the MIMO mRC has recently attracted much research interest. The DoF results under certain configurations of (L, K, M, N) have been reported. However, the DoF capacity of the MIMO mRC with an arbitrary network configuration is, in general, far from being well understood. In this regard, the main contribution of this paper is to propose a systematic signal alignment approach to jointly design the beamforming matrices at the users and the relay. Based on that, an achievable DoF is derived for the MIMO mRC with an arbitrary network configuration of (L, K, M, N). Our analysis revealed that the derived achievable DoF is piecewise linear in M and N alternately. Moreover, we showed that the DoF capacity can be achieved for M/N is an element of [1/LK(K-1) + 1/2, infinity) and M/N is an element of (0, Lq/LK(Lq-1)], where q = 2 inverted right perpendicularK/2inverted left perpendicular. We further derived the asymptotic DoF as K or L -> infinity. The DoF analysis in this paper can provide insights on the practical design of efficient communication mechanisms over multiterminal MIMO relay networks.
关键词	Physical-layer network coding (PNC) multiway relay channel (mRC) signal space alignment multi-input multi-output (MIMO)
URL	查看原文
收录类别	SCI ; EI
语种	英语
资助项目	NSF of China[61322102]
WOS研究方向	Engineering ; Telecommunications
WOS类目	Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000351445200017
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
EI入藏号	20151200657780
EI主题词	Antennas ; Degrees of freedom (mechanics) ; Electric relays ; Electronic data interchange ; Local area networks ; Mechanics ; MIMO systems ; Network layers ; Piecewise linear techniques
EI分类号	Electronic Components and Tubes:714 ; Telecommunication; Radar, Radio and Television:716 ; Information Theory and Signal Processing:716.1 ; Computer Software, Data Handling and Applications:723 ; Data Processing and Image Processing:723.2 ; Control Systems:731.1 ; Mechanics:931.1 ; Systems Science:961
WOS关键词	Y CHANNEL ; ALIGNMENT ; CAPACITY
原始文献类型	Article
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/2261
专题	信息科学与技术学院信息科学与技术学院_PI研究组_袁晓军组
作者单位	1.College of Electronics and Information Engineering, The Chinese University of Hong Kong, Shanghai, Hong Kong 2.School of Information Science and Technology, ShanghaiTech University, Shanghai, China 3.Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
推荐引用方式 GB/T 7714	Rui Wang,Xiaojun Yuan,Meixia Tao. Degrees of Freedom of MIMO Multiway Relay Channel With Clustered Pairwise Exchange[J]. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS,2015,33(2):337-351.
APA	Rui Wang,Xiaojun Yuan,&Meixia Tao.(2015).Degrees of Freedom of MIMO Multiway Relay Channel With Clustered Pairwise Exchange.IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS,33(2),337-351.
MLA	Rui Wang,et al."Degrees of Freedom of MIMO Multiway Relay Channel With Clustered Pairwise Exchange".IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS 33.2(2015):337-351.