MIMO Multiway Relaying With Clustered Full Data Exchange: Signal Space Alignment and Degrees of Freedom

doi:10.1109/TWC.2014.2323243

	MIMO Multiway Relaying With Clustered Full Data Exchange: Signal Space Alignment and Degrees of Freedom
	Xiaojun Yuan
	2014-12
发表期刊	IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
ISSN	1536-1276
卷号	13 期号:12 页码:6795-6808
发表状态	已发表
DOI	10.1109/TWC.2014.2323243
摘要	Recently, much research interest has been focused on the design of efficient communication mechanisms for multiple-input-multiple-output (MIMO) multiway relay channels (mRCs). In this paper, we investigate achievable degrees of freedom (DoFs) of the MIMO mRC with L clusters and K users per cluster, where each user is equipped with M antennas and the relay with N antennas. Our analysis is focused on a new data exchange model, termed clustered full data exchange, i.e., each user in a cluster wants to learn the messages of all the other users in the same cluster. Novel signal alignment techniques are developed to jointly and systematically construct the beamforming matrices at the users and the relay for efficient implementation of physical-layer network coding. Based on this, we derive an achievable DoF of the MIMO mRC with an arbitrary network configuration of L and K, as well as with an arbitrary antenna configuration of M and N. We show that our proposed scheme achieves the DoF capacity when M/N <= 1/(LK - 1) and M/N >= ((K - 1) L + 1)/KL. The DoF results derived in this paper can serve as fundamental benchmarks in evaluating the performance of practical communication systems over MIMO mRCs and provide guidance and insights into the design of wireless relay networks.
关键词	Multiway relay channels degrees of freedom multiple-input multiple-output systems physical-layer network coding signal and interference alignment
URL	查看原文
收录类别	SCI ; EI
语种	英语
资助项目	University Grants Committee of the Hong Kong Special Administrative Region, China[418712] ; University Grants Committee of the Hong Kong Special Administrative Region, China[AoE/E-02/08]
WOS研究方向	Engineering ; Telecommunications
WOS类目	Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000346629900022
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
EI入藏号	20145200365625
EI主题词	Antennas ; Benchmarking ; Codes (symbols) ; Communication channels (information theory) ; Degrees of freedom (mechanics) ; Electric relays ; Electronic data interchange ; Feedback control ; Local area networks ; Mechanics ; MIMO systems ; Network layers ; Telecommunication repeaters
EI分类号	Electronic Components and Tubes:714 ; Telecommunication; Radar, Radio and Television:716 ; Information Theory and Signal Processing:716.1 ; Telephone Systems and Equipment:718.1 ; Computer Software, Data Handling and Applications:723 ; Data Processing and Image Processing:723.2 ; Control Systems:731.1 ; Industrial Engineering and Management:912 ; Production Planning and Control; Manufacturing:913 ; Mechanics:931.1
WOS关键词	CHANNEL ; INTERFERENCE ; CAPACITY
原始文献类型	Article
来源库	IEEE
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2360
专题	信息科学与技术学院_PI研究组_袁晓军组
作者单位	Institute of Network Coding, ShanghaiTech University, Shanghai, China
第一作者单位	上海科技大学
第一作者的第一单位	上海科技大学
推荐引用方式 GB/T 7714	Xiaojun Yuan. MIMO Multiway Relaying With Clustered Full Data Exchange: Signal Space Alignment and Degrees of Freedom[J]. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS,2014,13(12):6795-6808.
APA	Xiaojun Yuan.(2014).MIMO Multiway Relaying With Clustered Full Data Exchange: Signal Space Alignment and Degrees of Freedom.IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS,13(12),6795-6808.
MLA	Xiaojun Yuan."MIMO Multiway Relaying With Clustered Full Data Exchange: Signal Space Alignment and Degrees of Freedom".IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 13.12(2014):6795-6808.