Graduate School and Research Center in Digital Sciences

Analysis of a S-TDMA distributed scheduler for ad-hoc cellular-V2X communication

Gallo, Laurent; Härri, Jérôme

Ad Hoc Networks, February 2019

The cellular industry recently proposed a Long Term Evolution (LTE) extension supporting direct Vehicle to Everything (V2X) communication in full ad-hoc mode. Without infrastructure support, a distributed scheduler will play a critical role to the performance of such Cellular-V2X (C-V2X) technology. Self-Organizing TDMA (S- DMA) is a reliable semi-deterministic and context aware distributed channel access algorithm, which has been considered by European Telecommunications Standard Institute (ETSI) as an attractive alternative to its WiFi-V2X standard, ITS-G5. In this paper, we describe S-TDMA, and present an analytical model to determine its packet reception performance. We then describe and analyze the performance of a distributed Cellular-V2X scheduler based on S-TDMA. We notably illustrate halfduplex issues impacting its performance in a C-V2X context, and propose two extensions to mitigate them. We finally compare their performance against each other, confirming S-TDMA's potential as distributed scheduler for the future cellular-based V2X technology.

Document Doi Bibtex

Title:Analysis of a S-TDMA distributed scheduler for ad-hoc cellular-V2X communication
Keywords:Vehicle-to-vehicle/roadside/Internet communication, Intelligent Transportation Systems, Network Layer Issues, Unsupervised LTE V2X, Vehicular Safety, Ad-hoc Broadcast
Department:Communication systems
Eurecom ref:5799
Copyright: © Elsevier. Personal use of this material is permitted. The definitive version of this paper was published in Ad Hoc Networks, February 2019 and is available at :
Bibtex: @article{EURECOM+5799, doi = {}, year = {2019}, month = {02}, title = {{A}nalysis of a {S}-{TDMA} distributed scheduler for ad-hoc cellular-{V}2{X} communication}, author = {{G}allo, {L}aurent and {H}{\"a}rri, {J}{\'e}r{\^o}me}, journal = {{A}d {H}oc {N}etworks, {F}ebruary 2019}, url = {} }
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