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Evaluation of the IEEE 802.11p MAC method for vehicle-to-vehicle communication
Högskolan i Halmstad, Inbyggda system (CERES).
Högskolan i Halmstad, Inbyggda system (CERES).ORCID iD: 0000-0001-6497-4099
Chalmers.
Högskolan i Halmstad, Inbyggda system (CERES).
2008 (English)In: 68th IEEE Vehicular Technology Conference, 2008. VTC 2008-Fall: IEEE Vehicular Technology Conference (VTC) (2008), Piscataway, N.J.: IEEE Press , 2008, Article number 4657278- p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper the medium access control (MAC) method of the upcoming vehicular communication standard IEEE 802.11p has been simulated in a highway scenario with periodic broadcast of time-critical packets (so-called heartbeat messages) in a vehicle-to-vehicle situation. The 802.11p MAC method is based on carrier sense multiple access (CSMA) where nodes listen to the wireless channel before sending. If the channel is busy, the node must defer its access and during high utilization periods this could lead to unbounded delays. This well-known property of CSMA is undesirable for time critical communications. The simulation results reveal that a specific node/vehicle is forced to drop over 80% of its heartbeat messages because no channel access was possible before the next message was generated. To overcome this problem, we propose to use self-organizing time division multiple access (STDMA) for real-time data traffic between vehicles. This MAC method is already successfully applied in commercial surveillance applications for ships (AIS) and airplanes (VDL mode 4). Our initial results indicate that STDMA outperforms CSMA for time-critical traffic safety applications in ad hoc vehicular networks.

Place, publisher, year, edition, pages
Piscataway, N.J.: IEEE Press , 2008. Article number 4657278- p.
Series
IEEE VTS Vehicular Technology Conference. Proceedings, ISSN 1090-3038
Keyword [en]
IEEE 802.11, MAC method, ad hoc networks, applications for ships, carrier sense multiple access, heartbeat messages, medium access control, real-time data traffic, self-organizing time division multiple access, time-critical packets, time-critical traffic safety applications, vehicle-to-vehicle communication, vehicular communication standard, wireless channel
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:mdh:diva-22179DOI: 10.1109/VETECF.2008.446ISI: 000288717900430Scopus ID: 2-s2.0-58149119241Local ID: 2082/2569ISBN: 978-1-4244-1721-6 (print)OAI: oai:DiVA.org:mdh-22179DiVA: diva2:661193
Conference
68th IEEE Vehicular Technology Conference, 2008. VTC Fall 2008, 21-24 September 2008, Calgary, Alberta, Canada
Available from: 2013-11-01 Created: 2013-10-29 Last updated: 2014-05-22Bibliographically approved

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Bilstrup, KatrinUhlemann, ElisabethBilstrup, Urban
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Citation style
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