Hybrid beamforming design and implementation for mitigating inter-cell interference in flexible duplex cellular system

Lai Wei, Meng Ma, Zhiheng Guo, Yongqiang Fei, Bingli Jiao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Flexible duplex is a promising technique, which provides access to flexible resource allocation and asymmetric traffic configuration. Inter-cell interference (ICI) is one of the key problems in flexible duplex cellular system. In this paper, a hybrid beamforming scheme is proposed to deal with the ICI problem. In particular, in designing the analog beamforming weights, a coordinate transformation method is introduced to transform the nonconvex optimization problem into a convex one. Moreover, an iterative algorithm is proposed to find the global optimal weights of the analog beamformer with lower computational complexity. Simulation and hardware experimental results demonstrate that significant ICI suppression can be achieved by using the proposed scheme.

Original languageEnglish
Title of host publication2019 IEEE 30th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC Workshops 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538693582
DOIs
StatePublished - Sep 2019
Externally publishedYes
Event30th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC Workshops 2019 - Istanbul, Turkey
Duration: 8 Sep 2019 → …

Publication series

Name2019 IEEE 30th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC Workshops 2019

Conference

Conference30th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC Workshops 2019
Country/TerritoryTurkey
CityIstanbul
Period8/09/19 → …

Keywords

  • Flexible duplex
  • Hybrid beamforming
  • Inter-cell interference

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