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http://dx.doi.org/10.17662/ksdim.2022.18.2.001

Opportunistic Broadcast Protocol for Frequent Topology Changes in Vehicular Ad-hoc Networks  

Cha, Si-Ho (청운대학교 멀티미디어학과)
Ryu, Minwoo (현대자동차 자동차부분 연구개발본부)
Publication Information
Journal of Korea Society of Digital Industry and Information Management / v.18, no.2, 2022 , pp. 1-8 More about this Journal
Abstract
The message propagation between vehicles must be efficiently performed to quickly transmit information between vehicles in vehicle ad hoc networks (VANETs). Broadcasting can be the most effective solution for propagating these messages. However, broadcasting can cause broadcast storm problems, which can reduce the performance of the overall network. Therefore, rapid information delivery in VANET requires a method that can propagate messages quickly without causing the broadcast storm problems. This paper proposes a lightweight and opportunistic broadcast (LOB) protocol that leverages the features of opportunistic routing to propagate messages quickly while minimizing the load on the network in VANETs where the network topology changes frequently. LOB does not require any routing information like greedy forwarding scheme, and neighboring nodes at the farthest distance within the range of transmission nodes are likely to be selected as forwarding nodes, and multiple forwarding candidate nodes like opportunistic routing scheme can increase packet transmission rates. Simulation results using ns-2 showed that LOB outperformed existing broadcast protocols in terms of packet rate and packet delay.
Keywords
Opportunistic Broadcast; VANET; Vehicular Ad-hoc Networks; Message Dissemination; ITS; Intelligent Transport System;
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