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Evaluation of the IEEE 802.11p MAC method for vehicle-to-vehicle communication
Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Inbyggda system (CERES).
Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Inbyggda system (CERES).ORCID-id: 0000-0001-6497-4099
Chalmers.
Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Inbyggda system (CERES).
2008 (engelsk)Inngår i: 68th IEEE Vehicular Technology Conference, 2008. VTC 2008-Fall: IEEE Vehicular Technology Conference (VTC) (2008), Piscataway, N.J.: IEEE Press, 2008, s. 1-5Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
Piscataway, N.J.: IEEE Press, 2008. s. 1-5
Serie
IEEE VTS Vehicular Technology Conference. Proceedings, ISSN 1090-3038
Emneord [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
HSV kategori
Identifikatorer
URN: urn:nbn:se:hh:diva-2172DOI: 10.1109/VETECF.2008.446ISI: 000288717900430Scopus ID: 2-s2.0-58149119241Lokal ID: 2082/2569ISBN: 978-1-4244-1721-6 OAI: oai:DiVA.org:hh-2172DiVA, id: diva2:239390
Konferanse
68th IEEE Vehicular Technology Conference, 2008. VTC Fall 2008, 21-24 September 2008, Calgary, Alberta, Canada
Merknad

Copyright © 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Tilgjengelig fra: 2010-03-30 Laget: 2008-12-03 Sist oppdatert: 2018-03-23bibliografisk kontrollert

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