Novel Energy-Efficiency Enhancement Schemes for Asynchronous Non-Orthogonal Multiple Access

He Wang, Xiangming Li*, Neng Ye, Aihua Wang

*Corresponding author for this work

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

Abstract

Non-orthogonal multiple access (NOMA) has been extensively studied in 5G New Radio (NR) for massive multimedia transmissions in scenarios such as massive Machine-Type Communication (mMTC). Existing researches normally assume synchronous user-multiplexing, which may introduce additional signaling overhead as well as large power consumption. However, the users in mMTC may not have strict synchronization due to signaling reduction and energy efficiency (EE) concern. To this end, two enhanced NOMA schemes are proposed to promote EE of asynchronous NOMA. Specifically, discontinuous transmission and rate splitting are respectively introduced to provide chances for successive interference cancellation receiving, which promotes the received SINR. Numerical simulations validate the advantages of the proposed schemes with respect to EE.

Original languageEnglish
Title of host publication2019 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB 2019
PublisherIEEE Computer Society
ISBN (Electronic)9781728121505
DOIs
Publication statusPublished - Jun 2019
Event2019 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB 2019 - Jeju, Korea, Republic of
Duration: 5 Jun 20197 Jun 2019

Publication series

NameIEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB
Volume2019-June
ISSN (Print)2155-5044
ISSN (Electronic)2155-5052

Conference

Conference2019 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB 2019
Country/TerritoryKorea, Republic of
CityJeju
Period5/06/197/06/19

Keywords

  • 5G NR
  • Asynchronous transmission
  • energy efficiency
  • multiplexing
  • non-orthogonal multiple access
  • rate splitting

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