为了解决空分复用弹性光网络节点中业务冲突问题, 在动态功能节点结构中配置全频谱转换器(FRSC)和空间选择开关(SSS)来转换冲突业务的频谱, 并在该节点结构基础上提出一种基于频谱集中度的频谱冲突解决(SCRASC)算法, 该算法综合考虑已使用的频谱块占比以及空闲频谱块与最大频谱块的距离, 优化频谱的集中度。仿真结果表明该算法在带宽阻塞率方面取得了较优的性能。

In order to solve the problem of service conflict in space division multiplexing elastic optical network nodes, full range spectrum converter(FRSC) and space selection switch(SSS) are configured in the dynamic function node structure to convert the spectrum of conflicting services. Based on this node structure, a spectrum conflict resolution algorithm based on spectrum concentration(SCRASC) is proposed. This algorithm comprehensively considers the used spectrum block ratio and the distance between the free frequency block spectrum and the largest spectrum block to optimize the frequency of the spectrum concentration. Simulation results show that the algorithm achieves better performance in terms of bandwidth blocking rate.