FlexGrid标准研究进展及应用分析

针对电力企业数据业务流量爆炸性增长所引发的骨干网络带宽资源瓶颈问题,在对国家电网公司光传输网（optical transport network,OTN）大容量骨干传输网络承载业务需求分析基础上,从频谱管理方法、交叉连接设备、混合线速传输、控制平面等方面出发,探索FlexGrid技术在电力通信网络中的应用模式,可为电力通信骨干网络提供光层粒度的精细划分与动态调整能力.在此基础上,提出在多种约束条件下根据频谱资源利用度动态调节调制的信道资源管理方法,可有效改善现有骨干传输网络采用的固定带宽分配和管理模式造成网络灵活性差,带宽资源利用效率低下的现状.

Research and Application of FlexGrid Standard

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.