What is SDN?
Software-defined networking (SDN) is a way to control the network using software to guide data where to go instead of having everything set it provide super flexibility and adaptability for dynamic situations like VANETs where cars are required to move around constantly, it is a network management approach designed to decouples the control plane from the data plane of a network because earlier network architectures require coupling of the control plane and the data plane within the networking devices such as switches and routers but in present scenario it allows the network administrators to programmatically control the network and hence making it more agile and flexible it can also be introduced as a layer of abstraction between the applications that interact within the network and the physical network infrastructure responsible for interaction.
SDN for Vehicular Ad-Hoc Networks (VANETs)
In recent years there is a rapid evolution in vehicular communication systems which has been a crucial point in the advancement of intelligent transportation systems (ITS) Among these Vehicular Ad-Hoc Networks (VANETs) have emerged as an important component facilitating vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication However, managing the dynamic nature of VANETs poses significant challenges inviting Software-Defined Networking (SDN) to arrive as a promising solution to enhance the performance and efficiency of VANETs.