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Joint Base Station Clustering and Beamforming for Non-Orthogonal Multicast and Unicast Transmission With Backhaul Constraints
Chen, Erkai1,2; Tao, Meixia1,2; Liu, Ya-Feng3
2018-09-01
Source PublicationIEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
ISSN1536-1276
Volume17Issue:9Pages:6265-6279
AbstractThe 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.
KeywordLayered-division multiplexing (LDM) non-orthogonal multicast and unicast transmission branch-and-bound (BB) sparse beamforming convex-concave procedure
DOI10.1109/TWC.2018.2858223
Language英语
Funding ProjectNational 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 Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000444652500043
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/31283
Collection计算数学与科学工程计算研究所
Corresponding AuthorTao, Meixia
Affiliation1.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
Recommended Citation
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.
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