Electromagnetic Exposure Aware RSMA for Multiuser Massive MIMO Uplink

Hanyu Jiang, Li You*, Ahmed Elzanaty, Jue Wang, Wenjin Wang, Xiqi Gao, Mohamed Slim Alouini

*Corresponding author for this work

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

1 Scopus citations

Abstract

This paper investigates the rate-splitting multiple access (RSMA) transmission design for multiuser multiple-input multiple-output (MIMO) uplink with EM exposure constraints. Specifically, the transmit covariance matrices and decoding order are optimized at the users and BS, respectively, via utilizing statistical channel state information (CSI) to maximize the energy efficiency (EE). The problem is formulated as non-convex mixed integer program, which is divided into the equivalent two subproblems. We first handle the inner problem by adopting the minorization-maximization (MM) and Dinkelbachs methods. Then, a modified water-filling scheme is proposed to obtain the transmit covariance matrices with fixed decoding permutation. For the outer problem, a greedy approach is proposed to obtain the decoding permutation. Numerical results verify the effectiveness of the proposed EM exposure aware EE maximization scheme for uplink RSMA.

Original languageEnglish (US)
Title of host publicationProceedings - 2022 14th International Conference on Signal Processing Systems, ICSPS 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages634-639
Number of pages6
ISBN (Electronic)9798350336313
DOIs
StatePublished - 2022
Event14th International Conference on Signal Processing Systems, ICSPS 2022 - Virtual, Online, China
Duration: Nov 18 2022Nov 20 2022

Publication series

NameProceedings - 2022 14th International Conference on Signal Processing Systems, ICSPS 2022

Conference

Conference14th International Conference on Signal Processing Systems, ICSPS 2022
Country/TerritoryChina
CityVirtual, Online
Period11/18/2211/20/22

Keywords

  • Electromagnetic (EM) exposure
  • energy efficiency (EE)
  • rate-splitting multiple access (RSMA)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation

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