Title: A novel hybrid broadcasting protocol based on coverage area segmentation and delay adjustment for VANETs

Authors: Houda Hafi; Wahabou Abdou; Salah Merniz

Addresses: MISC Laboratory, Abdelhamid Mehri University, Constantine, Algeria ' LE2I UMR6306, CNRS, Arts et Métiers, University Bourgogne Franche-Comté, F-21000, Dijon, France ' MISC Laboratory, Abdelhamid Mehri University, Constantine, Algeria

Abstract: We propose a reliable dissemination protocol for broadcasting safety messages in vehicular ad hoc networks called Segment Delay Based Broadcasting Protocol (SDBP). The protocol has a twofold goal: limiting the risk of interference and reducing the dissemination time. To achieve these goals, two mechanisms are proposed. The first one divides vehicle's coverage area into several segments depending on the local density. Thereafter, the priority to relay a message is given to nodes that are in the farthest segment from the source node. The second mechanism allows reducing the waiting time thanks to a periodic update process. The performances of SDBP have been studied in an environment with multiple concurrent data traffics. The goal was to validate its capacity when the radio channel becomes overloaded. The comparison study (in terms of delivery ratio, dissemination time, forwarders and redundancy packets ratio) shows that SDBP outperforms two VANETs' broadcasting protocols.

Keywords: vehicular ad-hoc networks; VANETs; safety applications; broadcasting protocol; road segmentation; delay adjustment.

DOI: 10.1504/IJITST.2020.104576

International Journal of Internet Technology and Secured Transactions, 2020 Vol.10 No.1/2, pp.81 - 101

Received: 14 Feb 2018
Accepted: 04 May 2018

Published online: 20 Jan 2020 *

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