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本文研究了在波长路由的智能光网络中选择路由与波长分配 (RWA)过程中如何考虑非线性效应的影响 在简要分析了考虑非线性效应影响的必要性后 ,以交叉相位调制为例推导出了一种简单的计算非线性效应引起的光功率代价计算公式 ,并讨论了如何将其引入路由与波长分配算法中 仿真结果表明非线性效应确实对RWA的优化结果产生一定的影响 ,其程度与物理拓扑、业务需求和具体的网络传输参量有关
This paper studies how to consider the effect of nonlinearity in routing and wavelength assignment (RWA) in wavelength-routed intelligent optical networks. After a brief analysis of the necessity of considering the effects of nonlinear effects, the case of cross-phase modulation is deduced A simple calculation formula of optical power cost caused by non-linear effect is discussed and how to introduce it into the routing and wavelength assignment algorithm is discussed. The simulation results show that the nonlinear effect does have an impact on the RWA optimization result. Physical topology, business needs and specific network transmission parameters