Joint Base Station Clustering and Beamforming for Non-Orthogonal Multicast and Unicast Transmission With Backhaul Constraints

doi:10.1109/TWC.2018.2858223

	Joint Base Station Clustering and Beamforming for Non-Orthogonal Multicast and Unicast Transmission With Backhaul Constraints
	Chen, Erkai 1,2; Tao, Meixia 1,2; Liu, Ya-Feng3
	2018-09-01
发表期刊	IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
ISSN	1536-1276
卷号	17 期号:9 页码:6265-6279
摘要	The demand for providing multicast services in cellular networks is continuously and fastly increasing. In this paper, we propose a non-orthogonal transmission framework based on layered-division multiplexing (LDM) to support multicast and unicast services concurrently in cooperative multi-cell cellular networks with a limited backhaul capacity. We adopt a two-layer LDM structure where the first layer is intended for multicast services, the second layer is for unicast services, and the two layers are superposed with different beamformers. Each user decodes the multicast message first, subtracts it, and then decodes its dedicated unicast message. We formulate a joint multicast and unicast beamforming problem with adaptive base station clustering that aims to maximize the weighted sum of the multicast rate and the unicast rate under per-BS power and backhaul constraints. To solve the problem, we first develop a branch-and-bound algorithm to find its global optimum. We then reformulate the problem as a sparse beamforming problem and propose a low-complexity algorithm based on convex-concave procedure. Simulation results demonstrate the significant superiority of the proposed LDM-based non-orthogonal scheme over orthogonal schemes in terms of the achievable multicast-unicast rate region.
关键词	Layered-division multiplexing (LDM) non-orthogonal multicast and unicast transmission branch-and-bound (BB) sparse beamforming convex-concave procedure
DOI	10.1109/TWC.2018.2858223
语种	英语
资助项目	National Natural Science Foundation of China[61571299] ; National Natural Science Foundation of China[61521062] ; National Natural Science Foundation of China[11688101] ; Beijing Natural Science Foundation[L172020]
WOS研究方向	Engineering ; Telecommunications
WOS类目	Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000444652500043
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/31283
专题	计算数学与科学工程计算研究所
通讯作者	Tao, Meixia
作者单位	1.Shanghai Jiao Tong Univ, Shanghai Inst Adv Commun & Data Sci, Shanghai 200240, Peoples R China 2.Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China 3.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Chen, Erkai,Tao, Meixia,Liu, Ya-Feng. Joint Base Station Clustering and Beamforming for Non-Orthogonal Multicast and Unicast Transmission With Backhaul Constraints[J]. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS,2018,17(9):6265-6279.
APA	Chen, Erkai,Tao, Meixia,&Liu, Ya-Feng.(2018).Joint Base Station Clustering and Beamforming for Non-Orthogonal Multicast and Unicast Transmission With Backhaul Constraints.IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS,17(9),6265-6279.
MLA	Chen, Erkai,et al."Joint Base Station Clustering and Beamforming for Non-Orthogonal Multicast and Unicast Transmission With Backhaul Constraints".IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 17.9(2018):6265-6279.