Degrees of Freedom of MIMO Y Channel with Multiple Relays

doi:10.1109/ISIT.2016.7541509

	Degrees of Freedom of MIMO Y Channel with Multiple Relays
	Ding, Tian 1; Yuan, Xiaojun2 ; Liew, Soung Chang 1
	2016
会议录名称	2016 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY
ISSN	2157-8117
卷号	2016-August
页码	1302-1306
发表状态	已发表
DOI	10.1109/ISIT.2016.7541509
摘要	We study the degrees of freedom (DoF) of a symmetric multi-relay multiple-input multiple-output (MIMO) Y channel, where three users, each equipped with M antennas, exchange messages via multiple geographically separated relay nodes, each with N antennas. We formulate a general DoF achievability problem assuming the use of linear precoding and post-processing. To solve this problem, we present a new uplink-downlink asymmetric strategy where the user precoders are designed for signal alignment and the user post-processors are used for interference neutralization. Based on that, we derive an achievable DoF of the considered model for an arbitrary antenna setup. The optimality of the derived DoF is established under certain antenna configurations. Also, we show that our design considerably outperforms the conventional uplink-downlink symmetric design.
关键词	Multi-relay MIMO Y channel degrees of freedom signal alignment partial antenna deactivation
出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
会议地点	Barcelona
会议日期	10-15 July 2016
URL	查看原文
收录类别	CPCI ; EI
语种	英语
资助项目	National Natural Science Foundation of China[61471241]
WOS研究方向	Computer Science ; Engineering
WOS类目	Computer Science, Theory & Methods ; Engineering, Electrical & Electronic
WOS记录号	WOS:000390098701073
出版者	IEEE
EI入藏号	20163702795803
EI主题词	Antennas ; Information theory ; Mechanics ; MIMO systems
EI分类号	Information Theory and Signal Processing:716.1 ; Mechanics:931.1
WOS关键词	ACHIEVABLE DEGREES ; ALIGNMENT
原始文献类型	Proceedings Paper
来源库	IEEE
引用统计	正在获取...
文献类型	会议论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2013
专题	信息科学与技术学院_PI研究组_袁晓军组
通讯作者	Ding, Tian
作者单位	1.Chinese Univ Hong Kong, Dept Informat Engn, Hong Kong, Hong Kong, Peoples R China 2.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Ding, Tian,Yuan, Xiaojun,Liew, Soung Chang. Degrees of Freedom of MIMO Y Channel with Multiple Relays[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2016:1302-1306.