基于图着色的PCE在光网络中的单播研究  

作　　者：李芳 陈浩 

机构地区：[1]武警工程大学

出　　处：《电子世界》2017年第7期9-10,共2页Electronics World

摘　　要：在光网络中限制物理层的攻击,降低其攻击影响的范围是一个亟待解决的问题。本文构建了带内串扰损伤和带外串扰损伤两种攻击传播模型,基于图着色原理动态分配波长,在路由分配阶段,把值较小的max LAR分配给光路请求。采用优化后的Dijistra算法能够动态的修正路径权值,减少光路中所需的波长数和改善其在物理层的攻击影响范围,从而大大提高了光网络数据传输效率。It is an urgent problem to restrict the attack of physical layer in the optical network and reduce the range of attack.In this paper, two kinds of attack propagation models are proposed, which are lntra-channnel crosstalk damage and Inter-channnel crosstalk damage.Based on the principle of graph coloring, the wavelength is allocated dynamically.In the phase of routing assignment, the smaller maxLAR is assigned to the optical path request.The modified path weights optimized Dijistra algorithm can dynamically, reduce the required number of wavelengths in the optical path and improve its physical layer attack range of influence, thus greatly improving the transmission efficiency of optical network data.

关 键 词：光网络 图着色 带内串扰损伤 带外串扰损伤 Dijistra算法 

分 类 号：TN929.1[电子电信—通信与信息系统]