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Delay Performance of the Multiuser MISO Downlink
KTH, School of Electrical Engineering and Computer Science (EECS), Information Science and Engineering.ORCID iD: 0000-0002-3595-2787
KTH, School of Electrical Engineering and Computer Science (EECS), Information Science and Engineering.ORCID iD: 0000-0001-6682-6559
Tech Univ Berlin, Inst Telecommun Syst, Berlin, Germany..
2018 (English)In: 2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings, Institute of Electrical and Electronics Engineers (IEEE), 2018, article id 8647680Conference paper, Published paper (Refereed)
Abstract [en]

We analyze a MISO downlink channel where a multi-antenna transmitter communicates with a large number of single-antenna receivers. Using linear beamforming or nonlinear precoding techniques, the transmitter can serve multiple users simultaneously during each transmission slot. However, increasing the number of users, i.e., the multiplexing gain, reduces the beamforming gain, which means that the individual data rates decrease. We use stochastic network calculus to analyze the queueing delay that occurs due to the time-varying data rates. Our results show that the optimal number of users, i.e., the optimal trade-off between multiplexing gain and beamforming gain, depends on incoming data traffic and its delay requirements.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018. article id 8647680
Series
IEEE Global Communications Conference, ISSN 2334-0983
Keywords [en]
Multiple-input multiple-output (MIMO), multiuser diversity, zero-forcing beamforming (ZFBF), dirty paper coding (DPC), stochastic network calculus
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-252933DOI: 10.1109/GLOCOM.2018.8647680ISI: 000465774303058Scopus ID: 2-s2.0-85063291167ISBN: 978-1-5386-4727-1 (print)OAI: oai:DiVA.org:kth-252933DiVA, id: diva2:1323442
Conference
2018 IEEE Global Communications Conference, GLOBECOM 2018; Abu Dhabi National Exhibition Centre (ADNEC)Abu Dhabi; United Arab Emirates; 9 December 2018 through 13 December 2018
Note

QC 20190612

Available from: 2019-06-12 Created: 2019-06-12 Last updated: 2019-06-12Bibliographically approved

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Schiessl, SebastianGross, James

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  • apa
  • harvard1
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  • modern-language-association-8th-edition
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Output format
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