A System Architecture for Heterogeneous Time- Sensitive Networking Based on SDN

Abstract

Time-Sensitive Networking (TSN) is a promising scheme to transfer real-time applications in future command and tactical systems. Combined with Software-Defined Networking (SDN) capacities, the network will be more flexible and controllable with global visibility. A combination of wireless networks and wired TSNs can be deployed to exploit the strengths of both, allowing for the widespread deployment of wireless sensors and actuators in charge of closed-loop command and control systems. This paper proposes a concept for heterogeneous TSN network architecture, with the help of OpenFlow protocol between SDN controllers and TSN switches, and presents detailed modules and their functionality. The proposed architecture enables integration with multiple wired and wireless systems, and the edge nodes access the backbone network through gateways. We have evaluated the proposed architecture on a test case via simulations in OMNet++. TT traffic can maintain its accurate transmission, and performance is not affected, moreover, the UDP traffic sent by the wireless end system is more stable in this framework.