A stochastic reservation scheme for aperiodic traffic in NR V2X communication

Youngjoon Yoon, Hyogon Kim

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

3 Citations (Scopus)

Abstract

Third Generation Partnership Project (3GPP) has standardized the Sensing-Based Semi-Persistent Scheduling (SB-SPS) as the radio resource allocation algorithm for 5G New Radio vehicle-to-everything (NR V2X) sidelink communication Mode 2. The algorithm leverages on resource reservation information of neighbor vehicles to reduce the chances of packet collisions. Like in LTE V2X, the SB-SPS scheme in NR V2X also assumes chained reservation that reflects the periodic nature of the traffic. However, such scheme does not work properly when the next packet instant is not fixed. Because NR V2X introduced aperiodic traffic, the limitation can be a performance-limiting factor in NR V2X. Therefore, we propose an enhancement to the SB-SPS algorithm to reflect the stochastic nature of the aperiodic traffic on the resource reservation mechanism. We demonstrate the effectiveness of the proposed enhancement through analysis and simulation, and discuss its cost aspect as well.

Original languageEnglish
Title of host publication2021 IEEE Wireless Communications and Networking Conference, WCNC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728195056
DOIs
Publication statusPublished - 2021
Event2021 IEEE Wireless Communications and Networking Conference, WCNC 2021 - Nanjing, China
Duration: 2021 Mar 292021 Apr 1

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
Volume2021-March
ISSN (Print)1525-3511

Conference

Conference2021 IEEE Wireless Communications and Networking Conference, WCNC 2021
Country/TerritoryChina
CityNanjing
Period21/3/2921/4/1

Keywords

  • Aperiodic traffic
  • Cellular V2X
  • NR Sidelink Mode 2
  • Resource reservation
  • Sensing-Based Semi-Persistent Scheduling (SPS)

ASJC Scopus subject areas

  • Engineering(all)

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