On the Ability of IEEE 802.11p and STDMA to Provide Predictable Channel Access.

Author(s)
Bilstrup, K. Uhlemann, E. Strom, E.G. & Bilstrup, U.
Year
Abstract

Emerging traffic safety applications requiring low delay communications will need vehicle ad-hoc networks. The only communication standard currently supporting this is IEEE 802.11p. However, 802.11p uses the medium accessmethod CSMA/CA, which has a major drawback: unbounded worst case channel access delay. We therefore propose an algorithm already in commercial use in the shipping industry: STDMA. With STDMA, nodes always get predictable channel access regardless of the number of competing nodes and the maximumdelay is deterministic. In this paper we elaborated with different parameter settings for the two protocols with the aim of improving performance without altering the standards.

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Publication

Library number
C 46936 (In: C 46669 CD-ROM) /73 / ITRD E852456
Source

In: ITS in daily life : proceedings of the 16th World Congress on Intelligent Transport Systems (ITS), Stockholm, Sweden, September 21-25, 2009, 10 p.

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This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.