Modular binary tree architecture for distributed large intelligent surface

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

Large intelligent surface (LIS) is a technology that extends massive MIMO by considering an even greater number of antennas distributed throughout vast areas. In order to be able to implement this technology, it is crucial to consider decentralized architectures so as to make the whole system scalable. We consider a LIS divided into several LIS panels of smaller size, which can be located far away from each other. We present a modular architecture that allows combining different LIS panels using a binary tree. This architecture is also valid in a cell-free massive MIMO scenario. We make use of a newly defined matrix decomposition, the WAX decomposition, to define the modules that are used within our architecture. We also study the lossless dimensionality reduction in the data to be processed, which can be achieved using our proposed architecture.

Original languageEnglish
Title of host publicationInternational Conference on Acoustics, Speech, and Signal Processing (ICASSP)
Pages4865-4869
Number of pages5
Volume2021-June
ISBN (Electronic)978-1-7281-7605-5
DOIs
Publication statusPublished - 2021
EventIEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2021 - Toronto, Canada
Duration: 2021 Jun 62021 Jun 11

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)1520-6149

Conference

ConferenceIEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2021
Country/TerritoryCanada
CityToronto
Period2021/06/062021/06/11

Subject classification (UKÄ)

  • Communication Systems

Keywords

  • Cell-free massive MIMO
  • Decentralized processing
  • Large intelligent surface (LIS)
  • Massive MIMO
  • WAX decomposition

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