Research on key technologies and applications of fine grain Optical Transport Network (fgOTN) for Electric Power Communication Network

As the Optical Transport Network (OTN) is gradually deployed in the access network of power communication, OTN is required to be able to directly transmit power services with different bandwidth. Due to the issue of low carrier efficiency for power service below 1Gbps in existing OTN networks, this paper analyzes the fine grain Optical Transport Network (fgOTN) technical system that provides fine-grained service bearers, and compares the technical characteristics of fgOTN based on key technical solutions and experimental data. The results show that fgOTN has obvious advantages in many aspects compared with the current VC/packet/ODUk multi-plane OTN for power communication. How to apply and deploy fgOTN in the existing power communication network and network evolution will be the focus of future research. Based on the technical characteristics of fgOTN, the networking solutions and evolution strategies of fgOTN for power communication are discussed.