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Beam management for millimeter wave beamspace MU-MIMO systems
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-5407-0835
2018 (English)In: 2017 IEEE/CIC International Conference on Communications in China, ICCC 2017, Institute of Electrical and Electronics Engineers (IEEE), 2018, Vol. 2018-January, p. 1-6Conference paper, Published paper (Refereed)
Abstract [en]

Millimeter wave (mmWave) communication has attracted increasing attention as a promising technology for 5G networks. One of the key architectural features of mmWave is the use of massive antenna arrays at both the transmitter and the receiver sides. Therefore, by employing directional beamforming (BF), both mmWave base stations (MBSs) and mmWave users (MUEs) are capable of supporting multi-beam simultaneous transmissions. However, most researches have only considered a single beam, which means that they do not make full potential of mmWave. In this context, in order to improve the performance of short-range indoor mmWave networks with multiple reflections, we investigate the challenges and potential solutions of downlink multi-user multi-beam transmission, which can be described as a high-dimensional (i.e., beamspace) multi-user multiple-input multiple-output (MU-MIMO) technique, including multi-user BF training, simultaneous users' grouping, and multi-user multi-beam power allocation. Furthermore, we present the theoretical and numerical results to demonstrate that beamspace MU-MIMO compared with single beam transmission can largely improve the rate performance of mmWave systems.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018. Vol. 2018-January, p. 1-6
Keywords [en]
beamspace MIMO, inter-beam interference coordination, Millimeter wave (mmWave), multi-user beamforming (BF) training
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-238255DOI: 10.1109/ICCChina.2017.8330435Scopus ID: 2-s2.0-85049653105ISBN: 9781538645024 (print)OAI: oai:DiVA.org:kth-238255DiVA, id: diva2:1264696
Conference
2017 IEEE/CIC International Conference on Communications in China, ICCC 2017, Qingdao, China, 22 October 2017 through 24 October 2017
Note

QC 20181121

Available from: 2018-11-21 Created: 2018-11-21 Last updated: 2018-11-21Bibliographically approved

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Xiao, Ming

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