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On Latency and Reliability of Road Hazard Warnings over the Cellular V2X Sidelink Interface
DIIES Department, University Mediterranea of Reggio Calabria, Italy.
DIIES Department, University Mediterranea of Reggio Calabria, Reggio Calabria Italy, & CentraleSupélec/L2S, Université Paris-Saclay, Paris, France.
CentraleSupélec/L2S, Université Paris-Saclay, Paris, France.
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES). Department of Electrical Engineering, Western Norway University of Applied Sciences, Bergen, Norway.ORCID iD: 0000-0003-4894-4134
2019 (English)In: IEEE Communications Letters, ISSN 1089-7798, E-ISSN 1558-2558Article in journal (Refereed) Epub ahead of print
Abstract [en]

Decentralized Environmental Notification Messages (DENMs) are generated by a vehicle upon detection of an accident or other hazards on the road, and need to be promptly and reliably transmitted. Delayed or lost messages may have fatal consequences, especially in critical driving situations, such as automated overtake and emergency braking, when vehicles can be very close to each other. In this letter, the DENM latency and reliability performances are characterized over the Cellular Vehicle-to-everything (C-V2X) sidelink (PC5 interface). The conducted study uses analytical tools, among which stochastic geometry, to derive performance results, then validated by simulations. Results are applied to the case of DENMs for emergency electronic brake lights, and helpful insights are provided for this crucial case and for other more general DENM-assisted V2X use cases.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE, 2019.
Keywords [en]
Cellular V2X, PC5, DENM, stochastic geometry
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:hh:diva-40344DOI: 10.1109/LCOMM.2019.2931686OAI: oai:DiVA.org:hh-40344DiVA, id: diva2:1339487
Projects
SafeSmart ”Safety of Connected Intelligent Vehicles in Smart Cities” Synergy project (2019–2023)Strategic Mobility Program (2019-2020)
Funder
Knowledge FoundationSwedish Foundation for Strategic Research Available from: 2019-07-29 Created: 2019-07-29 Last updated: 2019-10-15

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