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Distance and Random-based Broadcast Scheme for Vehicle Safety Communication  

You, Jong-Duck (School of Electronic Engineering, Soongsil University)
Jung, Sou-Hwan (School of Electronic Engineering, Soongsil University)
Publication Information
Abstract
Safety-related messages are propagated in form of broadcasting among vehicles in vehicle safety communication. There is the broadcast storm problem in high density vehicle environments. To solve this problem, a distance-based broadcast scheme has been proposed. It causes a serious problem such as retransmission delay in low density vehicle environments since it requires additional defer time to rebroadcast messages. This paper proposes a distance and random-based broadcast scheme. The proposed scheme selects a random time from zero to the defer time that estimated depending on the distance between sending and receiving vehicles. Simulation results show that the proposed scheme requires shorter defer time and less rebroadcasting message than existing schemes.
Keywords
DRBS; DDT; Broadcast Storm Problem; VSE; VANET;
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