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Rate region characterization for semantics and bits based multiuser communications

  • Xidong Mu*
  • , Yuanwei Liu
  • *Corresponding author for this work

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

Abstract

The coexistence of semantic communication (SemCom) and bit-based communication (BitCom) towards next-generation wireless networks is investigated. First, a semantic and bit uplink communication framework is proposed, where a near user (N-user) and a far user (F-user) upload information to the access point employing BitCom and SemCom, respectively. For effectively accommodating the two different users, orthogonal multiple access (OMA) and non-orthogonal multiple access (NOMA) schemes are proposed. The semantic-versus-bit rate region achieved by each scheme is characterized. The analytical performance comparison shows that NOMA is always superior to OMA, but for the F-user, employing SemCom may not always outperform BitCom. The presented numerical examples verify the analytical result.

Original languageEnglish
Title of host publicationICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728163277
ISBN (Print)9781728163284
DOIs
Publication statusPublished - 05 May 2023
Externally publishedYes
Event48th IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2023 - Rhodes Island, Greece
Duration: 04 Jun 202310 Jun 2023

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume2023-June
ISSN (Print)1520-6149
ISSN (Electronic)2379-190X

Conference

Conference48th IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2023
Country/TerritoryGreece
CityRhodes Island
Period04/06/202310/06/2023

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

  • Multiple access
  • semantic communication
  • semantic-versus-bit rate region

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

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