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http://dx.doi.org/10.7840/kics.2013.38B.11.924

Modeling of the Distributed Broadcasting in IEEE 802.11p MAC Based Vehicular Networks  

Jeong, Daein (한국외국어대학교 공과대학 디지털정보공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.38B, no.11, 2013 , pp. 924-933 More about this Journal
Abstract
In this paper, we propose a modeling of the broadcasting in the IEEE 802.11p MAC protocol for the VANET(Vehicular Ad hoc Networks). Due to the fact that the beacon message which is needed for the safety services is shared via broadcasting, the analytical modeling of the broadcasting is crucial for the optimum design of the services. Two characteristics specific to the IEEE 802.11p are reflected in the modeling; the time limited CCH interval caused by the channel switching between the CCH and SCH, and no retransmission of the broadcasted messages. In the proposal, we assumed no restriction on the moment of generation of the beacon messages. We allow the messages to be generated and broadcasted within the whole CCH interval. Simulation results prove the accuracy of the proposed modeling. Noticeable improvements are also observed in terms of the performance indices such as the successful delivery ratio, transmission delay, and the variation of the delay.
Keywords
modeling; broadcasting; IEEE 802.11p MAC; DSRC; VANET; channel switching;
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