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BL-CAST:Beacon-Less Broadcast Protocol for Vehicular Ad Hoc Networks
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  • BL-CAST:Beacon-Less Broadcast Protocol for Vehicular Ad Hoc Networks
  • BL-CAST:Beacon-Less Broadcast Protocol for Vehicular Ad Hoc Networks
저자명
Khan. Ajmal,Cho. You-Ze
간행물명
KSII Transactions on internet and information systems : TIIS
권/호정보
2014년|8권 4호|pp.1223-1236 (14 pages)
발행정보
한국인터넷정보학회
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정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

With the extension of wireless technology, vehicular ad hoc networks provide important services for the dissemination of general data and emergency warnings. However, since, the vehicle topology frequently changes from a dense to a sparse network depending on the speed of the moving vehicles and the time of day, vehicular ad hoc networks require a protocol that can facilitate the efficient and reliable dissemination of emergency messages in a highly mobile environment under dense or intermittent vehicular connectivity. Therefore, this paper proposes a new vehicular broadcast protocol, called BL-CAST, that can operate effectively in both dense and sparse network scenarios. As a low overhead multi-hop broadcast protocol, BL-CAST does not rely on the periodic exchange of beacons for updating location information. Instead, the location information of a vehicle is included in a broadcast message to identify the last rebroadcasting vehicle in an intermittently connected network. Simulation results show that BL-CAST outperforms the DV-CAST protocol in terms of the end-to-end delay, message delivery ratio and network overhead.