Energy Internet Oriented FlexE Hierarchical Business Hosting Mechanism

The businesses in the Energy Internet are becoming more and more various and complex. Huge data are being continuously generated by these businesses, which makes the communication network congested. This paper aims to design a novel communication model, so as to provide flexible on-demand communication services. To start the work, this paper firstly analyzes working model and communication requirements of classical businesses in the Energy Interne. By this way, the requirements of businesses hosting model could be easily understood. The businesses consist of four types, production with control, production without control, production information and management information, respectively. Each type of businesses has different characteristic and communication requirements in terms of transmission delay and bandwidth, security and robustness. After identifying the requirements, this paper propose a hierarchical business hosting model that supports requirement-adaptive communication channel scheduling. The model has three layers, physical transportation layer, FlexE slicing layer and group slicing layer. Every layer has some components to realize basic functions. Moreover, different combinations of communication trajectory segments would serve different information businesses. The model considers the variable scaled particle channels to improve channel efficiency and reduce transmission delay. After that, this paper designs a three-level network topology for the hierarchical model, and requirement-adaptive slicing strategies to serve four types of businesses. The slicing strategies would adopt physical isolation among transmission channels to keep information security and transmission robustness.