Graduate School and Research Center in Digital Sciences

Analytic performance comparison of unsupervised LTE D2D and DSRC in a V2X safety context

Gallo, Laurent; Härri, Jérôme

Research report RR-14-298

3GPP LTE specified for 5G the support for Device-to-Device (D2D) communication in either supervised mode (controlled by the network) or unsupervised mode (independent from network). This article explores the potential of LTE D2D in a fully unsupervised mode for the broadcast of safety-of-life automotive messages. After an overview of the Proximity Service (ProSe) architecture and new D2D interfaces, it introduces a framework and the required mechanisms for unsupervised LTE D2D broadcast on the new SideLink (SL) interface, composed of (i) a multi-cell and panoperator resource reservation schema (ii) a distributed resource allocation mechanism (iii) decentralized channel congestion control for joint transmit power/scheduling optimization. The proposed scheme is first evaluated independently, then benchmarked against IEEE 802.11p. Complementary to IEEE 802.11p, unsupervised LTE D2D is an opportunity to provide redundancy for ultra-reliable broadcast of automotive safety-of-life messages.

Document Hal Bibtex

Title:Analytic performance comparison of unsupervised LTE D2D and DSRC in a V2X safety context
Keywords:Automotive 5G, Congestion control, Distributed resource allocation, ITS, LTE D2D, LTE-direct, Mode 2, ProSe, Safety-related communications, V2X
Department:Communication systems
Eurecom ref:4499
Copyright: © EURECOM. Personal use of this material is permitted. The definitive version of this paper was published in Research report RR-14-298 and is available at :
Bibtex: @techreport{EURECOM+4499, year = {2014}, title = {{A}nalytic performance comparison of unsupervised {LTE} {D}2{D} and {DSRC} in a {V}2{X} safety context}, author = {{G}allo, {L}aurent and {H}{\"a}rri, {J}{\'e}r{\^o}me}, number = {EURECOM+4499}, month = {12}, institution = {Eurecom}, url = {},, }
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