English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In the C-V2X sidelink Mode 4 communication, the sensing-based semi-persistentscheduling (SPS) implements a message collision avoidance algorithm to copewith the undesirable effects of wireless channel congestion. Still, the currentstandard mechanism produces high number of packet collisions, which may hinderthe high-reliability communications required in future C-V2X applications suchas autonomous driving. In this paper, we show that by drastically reducing theuncertainties in the choice of the resource to use for SPS, we cansignificantly reduce the message collisions in the C-V2X sidelink Mode 4.Specifically, we propose the use of the "lookahead," which contains the nextstarting resource location in the time-frequency plane. By exchanging thelookahead information piggybacked on the periodic safety message, vehicularuser equipments (UEs) can eliminate most message collisions arising from theignorance of other UEs' internal decisions. Although the proposed scheme wouldrequire the inclusion of the lookahead in the control part of the packet, thebenefit may outweigh the bandwidth cost, considering the stringent reliabilityrequirement in future C-V2X applications.

Reducing Message Collisions in Sensing-based Semi-Persistent Scheduling (SPS) by Using Reselection Lookaheads in Cellular V2X