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随着科学技术的不断发展,光通信网络成为了网络技术的主要发展趋势,逐渐在通信网络中发挥出显著作用。现阶段,光通信网络中的光网络主要采用基于密集波分复用技术组成,一旦波分数量增加,光网络中的路由选择与波长分配问题就难以解决。本文详细阐述了分层图模型的概念,提出波长可变光网络中的动态RWA算法,并在此基础上分析了动态RWA算法的数值模拟,以在提高波长资源利用率的同时,降低网络阻塞率。
With the continuous development of science and technology, optical communication network has become the main development trend of network technology, and gradually play a significant role in the communication network. At this stage, the optical network in the optical communication network mainly adopts the technique of dense wavelength division multiplexing. Once the number of the wavelength points increases, routing and wavelength assignment problems in the optical network are difficult to solve. In this paper, the concept of hierarchical graph model is expounded in detail. The dynamic RWA algorithm in wavelength variable optical network is proposed. Based on this, the numerical simulation of dynamic RWA algorithm is analyzed to reduce the network congestion while improving the utilization of wavelength resource rate.