NDLI: A Methodology for Studying 802.11p VANET Broadcasting Performance With Practical Vehicle Distribution

Content Provider	IEEE Xplore Digital Library
Author	Qiu, H.J.F. Ho, I.W.-H. Tse, C.K. Yu Xie
Copyright Year	1967
Abstract	In a vehicular ad hoc network (VANET), the performance of the communication protocol is heavily influenced by the vehicular density dynamics. However, most of the previous works on VANET performance modeling paid little attention to vehicle distribution or simply assumed homogeneous car distribution. It is obvious that vehicles are distributed nonhomogeneously along a road segment due to traffic signals and speed limits at different portions of the road, as well as vehicle interactions that are significant on busy streets. In light of the inadequacy, in this paper, we present an original methodology to study the broadcasting performance of 802.11p VANETs with practical vehicle distribution in urban environments. First, we adopt the empirically verified stochastic traffic models, which incorporate the effect of urban settings (such as traffic lights and vehicle interactions) on car distribution and generate practical vehicular density profiles. Corresponding 802.11p protocol and performance models are then developed. When coupled with the traffic models, they can predict broadcasting efficiency, delay, and throughput performances of 802.11p VANETs based on the knowledge of car density at each location on the road. Extensive simulation is conducted to verify the accuracy of the developed mathematical models with the consideration of vehicle interaction. In general, our results demonstrate the applicability of the proposed methodology on modeling protocol performance in practical signalized road networks and shed insights into the design and development of future communication protocols and networking functions for VANETs.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	4756
Ending Page	4769
Page Count	14
File Size	1992681
File Format	PDF
ISSN	00189545
Volume Number	64
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Roads Analytical models Broadcasting Mathematical model Protocols Vehicles Stochastic processes Broadcasting Performance Modeling Vehicular Ad-hoc Network IEEE 802.11p Stochastic Traffic Modeling vehicular ad hoc network (VANET) Broadcasting performance modeling stochastic traffic modeling
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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