Fair decentralized data-rate congestion control for V2V communications

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

10 Citaten (Scopus)


Channel congestion is one of the most critical issues in IEEE 802.11p-based vehicular ad hoc networks because congestion may lead to unreliability of applications. As a counter measure, the European Telecommunications Standard Institute (ETSI), proposes a mandatory Decentralized Congestion Control (DCC) framework to control the channel load. DCC algorithms are proposed to tune parameters such as message-rate, data-rate, etc. to avoid congestion. An important requirement for DCC algorithms is fairness, which ensures that vehicles experiencing similar channel loads are entitled to similar transmission parameters, in particular, message-rate and data-rate. Message-rate DCC (LIMERIC) ensures a fair message-rate selection, while data-rate DCC (DR-DCC) might end up with different data-rates, creating unfairness among the vehicles: Vehicles with lower data-rate have a larger communication range than those using higher data-rates. Therefore some vehicles are less visible than others, which is detrimental to the reliability of the safety applications. To avoid this, the paper defines a novel packet-count based decentralized data-rate congestion control algorithm (PDR-DCC), which enforces fairness and hence improves the application-reliability. Simulation studies are performed to demonstrate that PDR-DCC avoids congestion in a fair manner. We also show the effect of fairness on the application-reliability by comparing the performance of PDR-DCC with message-rate (LIMERIC) and data-rate (DR-DCC) congestion control algorithms for a stationary vehicle warning application in a synthetic highway scenario and for various vehicular densities. We conclude that PDR-DCC outperforms LIMERIC, and DR-DCC in terms of application-reliability.

Originele taal-2Engels
TitelProceedings of the 24th International Conference on Telecommunications, 3-5 May 2017, Limassol, Cyprus
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
ISBN van elektronische versie978-1-5386-0643-8
ISBN van geprinte versie978-1-5386-0644-5
StatusGepubliceerd - 31 jul 2017
Evenement24th International Conference on Telecommunications (ICT 2017) - St Raphael Resort, Limassol, Cyprus
Duur: 3 mei 20175 mei 2017
Congresnummer: 24


Congres24th International Conference on Telecommunications (ICT 2017)
Verkorte titelICT 2017
Internet adres


Citeer dit

Belagal Math, C., Li, H., Heemstra De Groot, S. M., & Niemegeers, I. G. M. M. (2017). Fair decentralized data-rate congestion control for V2V communications. In Proceedings of the 24th International Conference on Telecommunications, 3-5 May 2017, Limassol, Cyprus (blz. 1-7). [7998229] Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ICT.2017.7998229