View source for Publications:Scalability issues of the MAC methods STDMA and CSMA of IEEE 802.11p when used in VANETs

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{{PublicationSetupTemplate|Author=Katrin Sjöberg-Bilstrup, Elisabeth Uhlemann, Erik G. Ström
|PID=332050
|Name=Sjöberg-Bilstrup, Katrin [kasj] (Högskolan i Halmstad [2804], Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) [3905], Halmstad Embedded and Intelligent Systems Research (EIS) [3938], Inbyggda system (CERES) [3939]);Uhlemann, Elisabeth [bettan] (Högskolan i Halmstad [2804], Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE) [3905], Halmstad Embedded and Intelligent Systems Research (EIS) [3938], Inbyggda system (CERES) [3939]);Ström, Erik G. (Dept. Signals and Systems, Chalmers University of Technology)
|Title=Scalability issues of the MAC methods STDMA and CSMA of IEEE 802.11p when used in VANETs
|PublicationType=Conference Paper
|ContentType=Refereegranskat
|Language=eng
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|HostPublication=2010 IEEE International Conference on Communications Workshops (ICC)
|Conference=IEEE International Conference on Communications Workshops, Cape Town, South Africa, May 2010
|StartPage=1
|EndPage=5
|Year=2010
|Edition=
|Pages=
|City=Cape Town, South Africa
|Publisher=IEEE Computer Society
|Series=
|SeriesISSN=
|ISBN=978-1-4244-6824-9
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|DOI=http://dx.doi.org/10.1109/ICCW.2010.5503941
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|ScopusId=2-s2.0-77954928450
|NBN=urn:nbn:se:hh:diva-5250
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|Keywords=VANET;MAC;802.11p;STDMA;CSMA;scalability
|Categories=Telekommunikation (20204)
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|Notes=<p>Copyright © 2010 IEEE. Reprinted from the ICC 2010 proceedings. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Halmstads's products or services. Internal or 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 must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.</p>
|Abstract=<p> </p><p>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 saturated.</p><p> </p>
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|CreatedDate=2010-08-01
|PublicationDate=2010-08-29
|LastUpdated=2014-01-13
|diva=http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:332050}}
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