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On the ability of the IEEE 802.11p and STDMA to provide predictable channel access
Högskolan i Halmstad, Inbyggda system (CERES).
Högskolan i Halmstad, Inbyggda system (CERES).ORCID iD: 0000-0001-6497-4099
Chalmers, Gothenburg.
Högskolan i Halmstad, Inbyggda system (CERES).
2009 (English)In: Proceedings of the 16th World Congress on Intelligent Transport Systems (ITS), 2009, 10- p.Conference paper, Published paper (Refereed)
Abstract [en]

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 access method 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 maximum delay 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.

 

Place, publisher, year, edition, pages
2009. 10- p.
Keyword [en]
IEEE 802.11p, vehicla ad hoc, V2V, MAC, VANET, predictable channel access, vehicular communications, STDMA
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:mdh:diva-22175OAI: oai:DiVA.org:mdh-22175DiVA: diva2:661198
Conference
16th World Congress on Intelligent Transport Systems (ITS), 21-25 september, Stockholm, Sweden, 2009
Available from: 2013-11-01 Created: 2013-10-29 Last updated: 2014-05-19Bibliographically approved

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