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Overhead-Aware Distributed CSI Selection in the MIMO Interference Channel
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-0995-9835
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-7724-5896
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-9442-671X
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-3599-5584
2015 (English)In: 2015 23rd European Signal Processing Conference, EUSIPCO 2015, Institute of Electrical and Electronics Engineers (IEEE), 2015, 1038-1042 p., 7362541Conference paper, Published paper (Refereed)
Abstract [en]

We consider a MEMO interference channel in which the transmitters and receivers operate in frequency-division duplex mode. In this setting, interference management through coordinated transceiver design necessitates channel state information at the transmitters (CSI-T). The acquisition of CSI T is done through feedback from the receivers, which entitles a loss in degrees of freedom, due to training and feedback. This loss increases with the amount of CSI-T. In this work, after formulating an overhead model for CSI acquisition at the transmitters, we propose a distributed mechanism to find for each transmitter a subset of the complete CSI, which is used to perform interference management. The mechanism is based on many-to-many stable matching. We prove the existence of a stable matching and exploit an algorithm to reach it. Simulation results show performance improvement compared to full and minimal CSI-T.

Place, publisher, year, edition, pages
2015. 1038-1042 p., 7362541
Series
European Signal Processing Conference, ISSN 2076-1465
Keyword [en]
Cochannel interference, Degrees of freedom (mechanics), MIMO systems, Radio transceivers, Signal interference, Signal processing, Transmitters, A-stable, Channel state information at the transmitters, Frequency-division duplexes, Interference management, Many to many, Mimo interference channels, Stable matching, Transceiver design, Channel state information
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-169689DOI: 10.1109/EUSIPCO.2015.7362541ISI: 000377943800209Scopus ID: 2-s2.0-84963940314ISBN: 978-0-9928-6263-3 (print)OAI: oai:DiVA.org:kth-169689DiVA: diva2:824530
Conference
23rd European Signal Processing Conference, EUSIPCO 2015; Nice Congress CenterNice; France; 31 August 2015 through 4 September 2015
Note

QC 20160715

Available from: 2015-06-22 Created: 2015-06-22 Last updated: 2016-07-18Bibliographically approved

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Mochaourab, RamiBrandt, RasmusBengtsson, Mats

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