my picture illustrates the Key Categories of important SDN S ervices.
I would suggest the following two interesting uses of the idea of SDN:
Use of SDN in the Internet of Things (SD-IoT) => e.g.: Smart City Parking System as a regional SD-IoT System (publication/341574902 => Fig.9548 )
Use of SDN in the Internet of Vehicles (SD-IoT) => e.g.: Use of SDN-Idee for Implementation of Handover in SD-IoV (publication/349280067 => Fig. 9771 )