Low complexity analog beam selection for uplink multiuser hybrid beamforming system

Myeong Jin Kim, Young-Chai Ko

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

1 Citation (Scopus)

Abstract

In this paper, we consider an uplink multiuser hybrid beamforming system where an access point (AP) communicates with multiple stations (STAs) simultaneously. The performance of the uplink multiuser hybrid beamforming system depends on the effective channel which is given by the product of channel matrix and the analog beams. Therefore, to maximize the performance, we need to select the appropriate analog beams from the set of predefined analog beams. In this paper, we propose a low complexity analog beam selection algorithm for the uplink multiuser hybrid beamforming system. Additionally, we compare the complexity to show that the proposed analog beam selection algorithm has much less complexity than the exhaustive search based optimum analog beam selection while the performance loss of the proposed analog beam selection algorithm is not significant compared to the optimum analog beam selection, which is shown by the numerical results.

Original languageEnglish
Title of host publication2015 IEEE Globecom Workshops, GC Wkshps 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467395267
DOIs
Publication statusPublished - 2016 Feb 18
EventIEEE Globecom Workshops, GC Wkshps 2015 - San Diego, United States
Duration: 2015 Dec 62015 Dec 10

Other

OtherIEEE Globecom Workshops, GC Wkshps 2015
CountryUnited States
CitySan Diego
Period15/12/615/12/10

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Keywords

  • Analog beamforming
  • Digital beamforming
  • Low complexity
  • Uplink multiuser hybrid beamforming

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Communication

Cite this

Kim, M. J., & Ko, Y-C. (2016). Low complexity analog beam selection for uplink multiuser hybrid beamforming system. In 2015 IEEE Globecom Workshops, GC Wkshps 2015 - Proceedings [7414061] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GLOCOMW.2015.7414061