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Cooperative Multicell Precoding: Rate Region Characterization and Distributed Strategies With Instantaneous and Statistical CSI
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
Mobile Communications Department, EURECOM.
Mobile Communications Department, EURECOM.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-2298-6774
2010 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 58, no 8, 4298-4310 p.Article in journal (Refereed) Published
Abstract [en]

Base station cooperation is an attractive way of increasing the spectral efficiency in multiantenna communication. By serving each terminal through several base stations in a given area, intercell interference can be coordinated and higher performance achieved, especially for terminals at cell edges. Most previous work in the area has assumed that base stations have common knowledge of both data dedicated to all terminals and full or partial channel state information (CSI) of all links. Herein, we analyze the case of distributed cooperation where each base station has only local CSI, either instantaneous or statistical. In the case of instantaneous CSI, the beamforming vectors that can attain the outer boundary of the achievable rate region are characterized for an arbitrary number of multiantenna transmitters and single-antenna receivers. This characterization only requires local CSI and justifies distributed precoding design based on a novel virtual signal-to-interference noise ratio (SINR) framework, which can handle an arbitrary SNR and achieves the optimal multiplexing gain. The local power allocation between terminals is solved heuristically. Conceptually, analogous results for the achievable rate region characterization and precoding design are derived in the case of local statistical CSI. The benefits of distributed cooperative transmission are illustrated numerically, and it is shown that most of the performance with centralized cooperation can be obtained using only local CSI.

Place, publisher, year, edition, pages
IEEE , 2010. Vol. 58, no 8, 4298-4310 p.
Keyword [en]
Coordinated multipoint (CoMP), network multiple-input-multiple-output (MIMO), base station cooperation, distributed precoding, rate region, virtual signal-to-interference, noise ratio (SINR)
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-26683DOI: 10.1109/TSP.2010.2049996ISI: 000282087000026Scopus ID: 2-s2.0-77954612884OAI: oai:DiVA.org:kth-26683DiVA: diva2:373150
Note
© 2010 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 20101130Available from: 2011-10-26 Created: 2010-11-26 Last updated: 2017-12-12Bibliographically approved

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Ottersten, Björn

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