Mobile Device Influence on SDN Controller Performance in IoT-Managed Software-Defined Wireless Networks

The proliferation of Internet of Things (IoT) devices has rapidly increased the number of internet connectivity. However, the conventional network lacks global knowledge to manage these devices efficiently. Software Defined Wireless Network (SDWN) has emerged as a new technology to manage these devices in wireless networks efficiently. However, SDWN is a flow-driven network that requires event generation for any new event in the network. This will require an exchange of control messages more often. In addition, the mobility nature of wireless devices will also need the Software Defined Networks (SDN) controller to monitor resources for efficient network management periodically. Therefore, Flow setup requests, control messages, and network resource monitoring significantly impact the SDN controller, which may affect its performance. This study investigates the influence of mobile devices on SDN Controller Performance in IoT-Managed Software-Defined Wireless Networks. The study derived formulae to estimate control overhead, network resources management, and flow setup requests. Thus, we experimented to analyze the controller’s performance based on CPU and Memory usage.