NDLI: Performance analysis of the IEEE 802.11 MAC protocol for DSRC with and without Retransmissions

Content Provider	IEEE Xplore Digital Library
Author	Hassan, M.I. Vu, H.L. Sakurai, T.
Copyright Year	2010
Description	Author affiliation: Department of Electrical and Electronic Engineering, The University of Melbourne, VIC 3010, Australia (Sakurai, T.) \|\| Centre for Advanced Internet Architectures, Faculty of I.C.T., Swinburne Univ. of Technology P.O. Box 218, VIC 3122, Australia (Hassan, M.I.; Vu, H.L.)
Abstract	We develop an accurate analytical model for a dedicated short range communication (DSRC) network that uses the IEEE 802.11 distributed coordination function (DCF) MAC protocol, as adopted by the forthcoming IEEE 802.11p specification for DSRC. The specific focus is on broadcast vehicle-to-vehicle safety messages. We derive explicit expressions for the mean of the total packet delay and the packet delivery ratio (PDR) in an unsaturated network formed by moving vehicles on a highway. Our model is validated using extensive simulations and we show that our model yields better predictive accuracy than other existing models. The model is then used to investigate the performance of a modified DCF that uses a fixed number of sequential retransmissions to improve the reliability of packet delivery. We find that with sequential retransmissions, the PDR improves at low vehicle density (i.e. low traffic load), but degrades at heavy loads where higher collisions induced by the retransmissions outweighs the benefit of repeated attempts.
Starting Page	1
Ending Page	8
File Size	156213
Page Count	8
File Format	PDF
ISBN	9781424472642
e-ISBN	9781424472659
e-ISBN	9781424472635
DOI	10.1109/WOWMOM.2010.5534909
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-14
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Analytical models Probability Media Access Protocol Safety Delay Vehicles
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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