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Scalability issues of the MAC methods STDMA and CSMA of IEEE 802.11p when used in VANETs
Högskolan i Halmstad, Inbyggda system (CERES).
Högskolan i Halmstad, Inbyggda system (CERES).ORCID iD: 0000-0001-6497-4099
Dept. Signals and Systems, Chalmers University of Technology.
2010 (English)In: 2010 IEEE International Conference on Communications Workshops (ICC), 2010, p. Article number 5503941-Conference paper, Published paper (Refereed)
Abstract [en]

Position messages will be the foundation for many emerging traffic safety applications based on wireless communications. These messages contain information about the vehicle’s position, speed, direction, etc. and are broadcasted periodically by each vehicle. The upcoming IEEE 802.11p standard, intended for vehicle unpredictable behavior of its medium access control (MAC) scheme, which imply that traffic safety applications cannot be supported satisfactorily when the network load increases. We study the MAC mechanism within IEEE 802.11p being a carrier sense multiple access (CSMA) algorithm and compare it with a self-organizing time division multiple access (STDMA) scheme when used for broadcasting periodic position messages in a realistic highway scenario. We investigate their scalability in terms of the number of vehicles that the VANET can support using metrics such as channel access delay, probability of concurrent transmissions and interference distance. The results show that STDMA outperforms CSMA of 802.11p even when the network is not saturate

 

Place, publisher, year, edition, pages
2010. p. Article number 5503941-
Keywords [en]
VANET, MAC, 802.11p, STDMA, CSMA, scalability
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:mdh:diva-22171DOI: 10.1109/ICCW.2010.5503941Scopus ID: 2-s2.0-77954928450ISBN: 978-1-4244-6824-9 (print)OAI: oai:DiVA.org:mdh-22171DiVA, id: diva2:661212
Conference
2010 IEEE International Conference on Communications Workshops, ICC 2010; Capetown; South Africa; 23 May 2010 through 27 May 2010
Available from: 2013-11-01 Created: 2013-10-29 Last updated: 2014-05-16Bibliographically approved

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Uhlemann, Elisabeth

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Sjöberg-Bilstrup, KatrinUhlemann, Elisabeth
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CiteExportLink to record
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Citation style
  • apa
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  • nn-NO
  • nn-NB
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