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Distributed Beamforming in Dynamic TDD MIMO Networks With BS to BS Interference Constraints
Univ Fed Ceara, Wireless Telecom Res Grp, BR-60020181 Fortaleza, Ceara, Brazil..
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Decision and Control Systems (Automatic Control). Ericsson Res, SE-16480 Stockholm, Sweden.ORCID iD: 0000-0002-2289-3159
Univ Fed Ceara, Wireless Telecom Res Grp, BR-60020181 Fortaleza, Ceara, Brazil..
Univ Fed Ceara, Wireless Telecom Res Grp, BR-60020181 Fortaleza, Ceara, Brazil..
2018 (English)In: IEEE Wireless Communications Letters, ISSN 2162-2337, E-ISSN 2162-2345, Vol. 7, no 5, p. 788-791Article in journal (Refereed) Published
Abstract [en]

This letter proposes distributed beamforming as a means of reducing interference in dynamic time division duplexing multiple input multiple output networks. Specifically, we formulate an optimization task, whose objective is to minimize the base station (BS) transmit power, while satisfying a predefined signal-to-interference-plus-noise ratio threshold for each downlink user equipment and keeping the BS to BS interference power below a tolerable level. An iterative decentralized solution requiring reduced signaling load based on primal decomposition is proposed. This decentralized algorithm is shown to iterate towards the centralized solution, while feasible but suboptimal solutions can be obtained at any iteration.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2018. Vol. 7, no 5, p. 788-791
Keywords [en]
Distributed beamforming, dynamic TDD, interference, sum-power minimization
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:kth:diva-238142DOI: 10.1109/LWC.2018.2825330ISI: 000447048200026Scopus ID: 2-s2.0-85045346146OAI: oai:DiVA.org:kth-238142DiVA, id: diva2:1261648
Note

QC 20181108

Available from: 2018-11-08 Created: 2018-11-08 Last updated: 2022-06-26Bibliographically approved

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Fodor, Gabor

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