期刊
IEICE TRANSACTIONS ON COMMUNICATIONS
卷 E95B, 期 12, 页码 3875-3878出版社
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
DOI: 10.1587/transcom.E95.B.3875
关键词
broadcast scheme; broadcast storm; slotted p-persistence; traffic density; vehicular ad hoc networks
资金
- NRF (National Research Foundation of Korea) [2011-0022871]
- ITR&D program of MKE/KEIT [10041145]
- Kyungpook National University
- National Research Foundation of Korea [2011-0022871] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This paper proposes an efficient broadcast scheme based on traffic density measurement to mitigate broadcast storms in Vehicular Ad Hoc Networks (VANETs). In a VANET, the number of vehicles that rebroadcasts a message is closely related with the collision ratio of the message, so a well-designed broadcast scheme should consider traffic density when rebroadcasting a message. The proposed scheme introduces a traffic density measurement scheme and broadcast scheme for VANET. It is based on the slotted p-persistence scheme, but the rebroadcast procedure is enhanced and the rebroadcast probability p is controlled dynamically according to the estimated traffic density. Simulation results demonstrate that the proposed scheme outperforms existing schemes in terms of the end-to-end delay and collision ratio.
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