Uplink power control in cellular massive MIMO systems: coping with the congestion issue

Trinh Van Chien , Emil Björnson, Hien-Quoc Ngo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

One main goal of 5G-and-beyond systems is to simultaneously serve many users, each having a requested spectral efficiency (SE), in an energy-efficient way. The network capacity cannot always satisfy all the SE requirements, for example, when some users have bad channel conditions, especially happening in a cellular topology, and therefore congestion can happen. By considering both the pilot and data powers in the uplink transmission as optimization variables, this paper formulates and solves an energy-efficiency problem for cellular Massive MIMO (Multiple Input Multiple Output) systems that can handle the congestion issue. New algorithms based on the alternating optimization approach are proposed to obtain a fixed-point solution. Numerical results manifest that the proposed algorithms can provide the demanded SEs to many users even when the congestion happens.
Original languageEnglish
Title of host publication2020 IEEE International Conference on Communications Workshops (ICC Workshops): Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728174402
ISBN (Print)9781728174419
DOIs
Publication statusPublished - 21 Jul 2020
EventIEEE International Conference on Communications 2020 - Virtual, Dublin, Ireland
Duration: 07 Jun 202011 Jun 2020
https://doi.org/10.1109/ICC40277.2020
https://icc2020.ieee-icc.org/
https://icc2020.ieee-icc.org/workshop/ws-13-workshop-on-scalable-massive-mimo-technologies-beyond-5g?fbclid=IwAR16Bmos9FmvBlDylo5leqHqZMwepY7Lc_R4mSPU-J94RUsFPqmSHVScz8Q
https://icc2020.ieee-icc.org/sites/icc2020.ieee-icc.org/files/CISS.pdf

Publication series

NameIEEE International Conference on Communications Workshops (ICC Workshops)
PublisherIEEE
ISSN (Print)2474-9133

Conference

ConferenceIEEE International Conference on Communications 2020
Abbreviated titleIEEE ICC 2020
Country/TerritoryIreland
CityDublin
Period07/06/202011/06/2020
Internet address

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