Handover Management for Delay-sensitive IoT Services on Wireless Software-defined Network Platforms

Software Defined Networks allow network operators to easily add new services to the network and quickly adapt the network to their own requirements. The main feature of this architecture is separation of control plane and data plane, and logically concentrating network strategic intelligence in a network location. Real-time traffics generated by mobile users still require small end-to-end delay and small handover latency during the user handover, to make smooth communication for users. Most IoT application traffic fall within this category. While the amount of transmitted data in IoT applications might be considerably smaller than that of real-time multimedia applications, many IoT applications have low tolerance to large delays. In this paper, we improved end-to-end delay and handover latency by proposing an SDN-based scheme with a cross-layer approach. We show that the mentioned delays are reduced by using our method. We evaluated our method by using Mininet-WiFi [13] Emulator. We have also reduced the number of handover that users encounter during their mobility.