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Design Methodology and Evaluation of Rate Adaptation Based Congestion Control for Vehicle Safety Communications

Tielert, T. 1; Jiang, D.; Chen, Q.; Delgrossi, L.; Hartenstein, H. 1
1 Steinbuch Centre for Computing (SCC), Karlsruher Institut für Technologie (KIT)


Vehicle Safety Communications (VSC) is advancing rapidly towards product development and field testing. While a number of possible solutions have been proposed, the question remains open as how such a system will address the issue of scalability in its actual deployment. This paper presents a design methodology for congestion control in VSC as well as the description and evaluation of a resulting rate adaption oriented protocol named PULSAR. We start with a list of design principles reflecting the state of the art that define why and how vehicles should behave while responding to channel congestion in order to ensure fairness and support the needs of safety applications. From these principles, we derive protocol building blocks required to fulfill the defined objectives. Then, the actual protocol is described and assessed in detail, including a discussion on the intricate features of channel load assessment, rate adaptation and information sharing. A comparison with other state-of-the-art protocols shows that "details matter" with respect to the temporal and spatial dimensions of the protocol outcome.

DOI: 10.1109/VNC.2011.6117132
Zitationen: 166
Zitationen: 160
Zugehörige Institution(en) am KIT Institut für Telematik (TM)
Steinbuch Centre for Computing (SCC)
Universität Karlsruhe (TH) – Zentrale Einrichtungen (Zentrale Einrichtungen)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2011
Sprache Englisch
Identifikator ISBN: 978-1-4673-0049-0
ISSN: 2157-9865
KITopen-ID: 1000024926
Erschienen in 2011 IEEE Vehicular Networking Conference, VNC 2011; Amsterdam; Netherlands; 14 November 2011 through 16 November 2011
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Seiten 116-123
Serie IEEE Vehicular Networking Conference, VNC
Nachgewiesen in Scopus
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