Evaluation of Heterogeneous Access Networks Based on SDN for Internet of Things

With the rapid development of Internet of Things (IoT), more and more communication access networks are connected to the IoT network. However, the large number of these access networks and the access mode is complicated, the existing quality of service (QoS) guarantee methods can not satisfy the requirements of heterogeneous access network. This paper proposed a software defined distribution optical network architecture (SD-DON) and an access method for QoS guarantee by utility function. Numerical results verified the performance and reliability of QoS guarantee method of heterogeneous access network.