SDN-enabled hybrid emergency message transmission architecture in internet-of-vehicles
- 19 March 2017
- journal article
- research article
- Published by Informa UK Limited in Enterprise Information Systems
- Vol. 12 (4), 471-491
- https://doi.org/10.1080/17517575.2017.1304578
Abstract
With the increasing number of vehicles connected to the Internet-of-Things (IoT), Internet-of-Vehicles (IoV) is becoming a hot research topic. It can improve traffic safety and efficiency and promote the development of the intelligent transportation that is a very important element in Smart Cities. As an important part of the safety application in IoV, the emergency message transmission is designed to inform all the vehicles in the relevant area timely of the accident information through the multi-hop broadcast communication. In this paper, we propose a hybrid emergency message transmission (HEMT), which introduces the SDN technology into the vehicular network environment and utilizes the flexibility of inter-vehicle communication. By deploying SDN-enabled central controller and RSU switches, we can obtain reliable and fast emergency message dissemination. Moreover, considering the space between the coverages of RSUs caused by the sparse deployment, we also use inter-vehicle multi-hop broadcast communication to improve the message coverage ratio by adding the packet modification module on the RSU switch. Simulation results show the feasibility and effectiveness of our proposed scheme.Keywords
Funding Information
- National Natural Science Foundation of China (No. 61272504)
- Research Fund for the Doctoral Program of Higher Education of China (no. 20130009110010)
- 973 Program (No. 2013CB329100)
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