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With the rise of fifth-generation (5G) network technology and the swift expansion of vehicular networks, traditional Vehicular Ad hoc Networks (VANETs) encounter considerable challenges in managing large-scale, dynamic, and diverse environments due to their limitations in flexibility and scalability. To address these issues, researchers have recommended the integration of Software-Defined Networking (SDN) programmable networking architectures with traditional VANETs. SDN improves network flexibility, programmability, and scalability while providing a global view of the entire network. As a result, SDN-based VANETs seem to be a promising approach to addressing current and future vehicular networking challenges. However, integrating the SDN with VANETs raises security concerns stemming from its programmability, open flow-based communication mechanisms, and the implementation of a logically centralized control system in the networks. This paper reviews the state-of-the-art security solutions proposed by researchers in the literature aimed at securing the network operations of SDN-based VANETs. Additionally, the paper will highlight the potential future research directions to enhance the security of this evolving network architecture.

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State-of-the-Art Security Solutions for SDN-Based VANETs: A Review

  • 会议论文

  • 发表日期：

    2026年

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  • Upinder Kaur,
  • Aparna N. Mahajan,
  • Sunil Kumar,
  • Kamlesh Dutta,
  • Jyotsana Sardana

摘要

With the rise of fifth-generation (5G) network technology and the swift expansion of vehicular networks, traditional Vehicular Ad hoc Networks (VANETs) encounter considerable challenges in managing large-scale, dynamic, and diverse environments due to their limitations in flexibility and scalability. To address these issues, researchers have recommended the integration of Software-Defined Networking (SDN) programmable networking architectures with traditional VANETs. SDN improves network flexibility, programmability, and scalability while providing a global view of the entire network. As a result, SDN-based VANETs seem to be a promising approach to addressing current and future vehicular networking challenges. However, integrating the SDN with VANETs raises security concerns stemming from its programmability, open flow-based communication mechanisms, and the implementation of a logically centralized control system in the networks. This paper reviews the state-of-the-art security solutions proposed by researchers in the literature aimed at securing the network operations of SDN-based VANETs. Additionally, the paper will highlight the potential future research directions to enhance the security of this evolving network architecture.