Cell-Grouping Based Distributed Beamforming and Scheduling for Multi-cell Cooperative Transmission
2011 (English)In: Proceedings 22nd IEEE Symposium on Personal, Indoor, Mobile and Radio Communications (PIMRC), IEEE conference proceedings, 2011, 1929-1933 p.Conference paper (Refereed)
Base station cooperative transmission is an effective strategy to mitigate inter-cell interference. Centralized multicell transmission provides considerable performance gains but is impractical in large cellular systems, due to its prohibitive complexity and large amount of overhead. Dividing cells into small clusters enables practical channel acquisition and coordination within each cluster but still suffers from out-of-cluster interference. In this paper, we propose a dynamic cooperative framework for large cellular systems, which divides cells into groups such that neighboring cells belong to different groups. Based on the cell-grouping, a distributed scheduling strategy is proposed which can effectively coordinate the interference between cell-groups. With limited signalling among BSs and lower complexity, the cell-grouping based distributed scheduling and beamforming shows performance advantages over the fixed clustering based centralized scheduling and beamforming.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2011. 1929-1933 p.
Array signal processing, Downlink, Interference, Job shop scheduling, Processor scheduling, Resource management, Throughput
IdentifiersURN: urn:nbn:se:kth:diva-66500DOI: 10.1109/PIMRC.2011.6139846ScopusID: 2-s2.0-84863248441ISBN: 978-1-4577-1347-7ISBN: 978-1-4577-1346-0OAI: oai:DiVA.org:kth-66500DiVA: diva2:484166
22nd IEEE Symposium on Personal, Indoor, Mobile and Radio Communications (PIMRC)11-14 Sept. 2011
© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.QC 201112012013-02-282012-01-262013-02-28Bibliographically approved