期刊
IEEE COMMUNICATIONS MAGAZINE
卷 55, 期 7, 页码 80-86出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/MCOM.2017.1601105
关键词
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资金
- Canada Research Chairs Program, NSERC DIVA Strategic Network
- NSERC CREATE TRANSIT Program
- Brazilian Council for Scientific and Technological Development (CNPq) [208397/2014-0/GDE]
- Sao Paulo Research Foundation (FAPESP) [2015/18898-9]
With the recent advances in the telecommunications and auto industries, we have witnessed growing interest in ITS, of which VANETs are an essential component. SDN can bring advantages to ITS through its ability to provide flexibility and programmability to networks through a logically centralized controller entity that has a comprehensive view of the network. However, as the SDN paradigm initially had fixed networks in mind, adapting it to work on VANETs requires some changes to address particular characteristics of this kind of scenario, such as the high mobility of its nodes. There has been initial work on bringing SDN concepts to vehicular networks to expand its abilities to provide applications and services through the increased flexibility, but most of these studies do not directly tackle the issue of loss of connectivity with said controller entity. In this article, we propose a hierarchical SDN-based vehicular architecture that aims to have improved performance in the situation of loss of connection with the central SDN controller. Simulation results show that our proposal outperforms traditional routing protocols in the scenario where there is no coordination from the central SDN controller.
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