Publications:On the ability of the IEEE 802.11p and STDMA to provide predictable channel access

From CERES
Jump to: navigation, search

Do not edit this section

Keep all hand-made modifications below

Title On the ability of the IEEE 802.11p and STDMA to provide predictable channel access
Author Katrin Bilstrup and Elisabeth Uhlemann and Erik G. Ström and Urban Bilstrup
Year 2009
PublicationType Conference Paper
Journal
HostPublication Proceedings of the 16th World Congress on Intelligent Transport Systems (ITS)
DOI
Conference 16th World Congress on Intelligent Transport Systems (ITS), 21-25 september, Stockholm, Sweden, 2009
Diva url http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:302409
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 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.