关键词: 频谱切片弹性光网络, 弹性波分复用, 频率隙, 波长选择开关, 光传输网

Abstract: Due to the explosive growth of power enterprises’ data traffic, the bandwidth bottle-neck problem of the backbone network is becoming more serious. In order to solve this problem, the FlexGrid technology application in power communication networks was investigated from the aspects of spectrum management methods, cross-connect equipment, mixing wire-speed transmission and control plane, on the basis of the service requirements analysis of the State Grid large-capacity OTN (optical transport network) backbone network. The proposed application mode can provide finer granularity size and dynamic adjustment capabilities. A spectrum management approach was proposed by using different modulation order regulations under several constraint conditions, which can effectively improve the performance of poor flexibility, low bandwidth utilization efficiency of existing transport network due to fixed bandwidth allocation.

Key words: spectrum sliced elastic optical path network, flexible wavelength division multiplex, frequency slot, wavelength selective switch, optical transport network