End-to-End Optical Layer Slicing Technology in Multi-Format Power Communication Optical Networks of SDH and OTN

With the increasing number of transmission and distribution networks, end-to-end optical layer slicing is expected to provide a more efficient transmission method for power communication networks. However, the coexistence of multiple communication systems such as synchronous digital hierarchy (SDH) and optical transport network (OTN) in current power communication networks poses challenges for end-to-end optical layer slicing. In this paper, against the backdrop of power communication networks where SDH and OTN communication systems coexist, we analyze the differences between SDH and OTN communication systems and consider two types of requests: bandwidth-constrained and latency-constrained. We construct an integer linear programming (ILP) model for slicing mapping and design a slicing request mapping strategy based on consistent transmission bandwidth and another slicing request mapping strategy based on minimal transmission latency. Surrounding the proposed content, we design simulation evaluation metrics for the two strategies and compare their performance with traditional strategies. We evaluate and discuss the effectiveness and efficiency of the two proposed strategies, providing a reference solution for the integration research of power communication networks under multiple communication systems.