ROUTING PROTOCOL FOR IoV-FOG NETWORK SUPPORTED BY SDN
Ahmed Jawad Kadhim, Jaber Ibrahim Naser · Telecommunications and Radio Engineering · 2020
The fog computing is considered as a new solution to the resource's limitation issue in many networks. Internet of Vehicles (IoV) includes communications of various types of sensors which are put in the cars. The fog devices transmit the answers to the sensors after executing the launched jobs from these sensors quickly. Due to the movement, the source vehicle of some job may be going out from a coverage region for a fog device during an execution period. Accordingly, a response doesn't deliver to the source vehicle, and as a result, the deadline for most tasks will be passed, and the throughput will be reduced. This paper introduces a new environment for IoV-Fog network by exploiting hierarchical Software Defined Network (SDN). In addition, a routing protocol named Delay-Efficient Routing approach for IoV depending on Fog and SDN (DRIFS) is suggested. DRIFS is applied in the SDN orchestrators to build efficient paths. Also taken into consideration, the speed and location of the cars, as well as the remaining bandwidth. The simulation results illustrate the suggested method is powerful compared with the IoV-Fog system and IoV-Fog-central SDN environments according to average delay and successfully transmission ratio.