Secure Network Slice Mapping Strategy for Security and Stability Control System

As the main guarantee of power grid operation, the security and stability control system can flexibly carry diversified new services through 5G network slicing technology, and establish a network with large-capacity, rigidity and low-latency simultaneously. For the channel-related risks brought by network slicing, this paper proposes a network slice mapping algorithm for stability control systems (SM-SC). The algorithm jointly considers remaining processing resources of nodes in optical access network, available bandwidth of optical interface and transmission distance. It can realize the allocation of heterogeneous network resources for slices under DDoS (Distributed denial of service) attack, on the premise of ensuring the QoS (Quality of Service) of different network slices. The simulation results show that compared with benchmark algorithm, the proposed algorithm can reduce the slice blocking ratio by an average of 3.26% under DDoS attack.