This sub-group discusses challenges and research topics related to Software Defined Networking (SDN) and Netowrk Virtualization (NV).

Future wireless networks are expected to accommodate a wide range of services/use cases with diverse quality-of-service (QoS) requirements, such as machine-to-machine communication, Internet of Things, vehicular communications, and smart grid. In addition, future wireless networks exhibit great heterogeneity in network entities and resources. Software Defined Networking (SDN) and Netowrk Virtulization (NV) have great potential to support diverse service/use cases by efficiently utilizing heterogeneous network resources in a flexible and agile manner. As an emerging and open paradigm, SDN simplifies network evolution, enables dynamic network management, and supports network programmability. Moreover, facilitated by SDN, network virtualization/network slicing slices common physical infrastructure to create multiple virtual networks. VNs can be customized for different services/use cases to meet specific needs. This research group aims to pave the road towards software defined virtual networks, by investigating the following key issues for SDN and NV: SDN based network architecture design, SDN implementation and prototype, resource management, VN customization, network embedding, protocol customization, and security.