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在采用密集波分复用技术的骨干网中,通过建立动态多粒度业务模型对由大粒度(光纤和波带)和小粒度(波长)组成的三阶多粒度光交叉连接所构成的节点的网络特性(阻塞概率和带宽阻塞比)进行了研究和仿真分析,并由此对三阶多粒度节点的结构参数和网络中的系统参数进行了优化设计.从仿真结果可以看出,所提出来的优化设计方案能够显著的减少节点结构的复杂度并改善阻塞性能,从而减小了网络中设备的规模和成本.
In the backbone network using Dense Wavelength Division Multiplexing (WDM) technology, a dynamic multi-granularity service model is established for the nodes formed by the third-order multi-granularity optical cross-connect consisting of large granularity (optical fiber and band) and small granularity Network characteristics (blocking probability and bandwidth blocking ratio) were studied and simulated, and the structural parameters of the third-order multi-granularity nodes and the system parameters in the network were optimized.From the simulation results it can be seen that the proposed The optimized design scheme can significantly reduce the complexity of the node structure and improve the blocking performance, thus reducing the size and cost of the equipment in the network.