Nonlinear Interference-Aware Routing,Wavelength and Power Allocation in C+L+S Multi-Band Optical Networks  

作　　者：Zhang Xu Xie Wang Feng Chuan Zeng Hankun Zhou Shanshan Zhang Fan Gong Xiaoxue 

机构地区：[1]School of Communications and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China [2]Institute of Intelligent Communications and Network Security,Chongqing University of Posts and Telecommunications,Chongqing 400065,China [3]Key Laboratory of Big Data Intelligent Computing,Chongqing University of Posts and Telecommunications,Chongqing 400065,China

出　　处：《China Communications》2025年第4期129-142,共14页中国通信(英文版)

基　　金：supported in part by the National Natural Science Foundation of China under Grants U21B2005,62201105,62331017,U24B20134,62222103,and 62025105;in part by the Chongqing Municipal Education Commission under Grants KJQN202400621,KJQN202100643,and KJZDK202400608;in part by the China Postdoctoral Science Foundation under Grant 2021M700563;in part by the Chongqing Postdoctoral Funding Project under Grant 2021XM3052。

摘　　要：Multi-band optical networks are a potential technology for increasing network capacity.However,the strong interference and non-uniformity between wavelengths in multi-band optical networks have become a bottleneck restricting the transmission capacity of multi-band optical networks.To overcome these challenges,it is particularly important to implement optical power optimization targeting wavelength differences.Therefore,based on the generalized Gaussian noise model,we first formulate an optimization model for the problems of routing,modulation format,wavelength,and power allocation in C+L+S multi-band optical networks.Our objective function is to maximize the average link capacity of the network while ensuring that the Optical Signal-to-Noise(OSNR)threshold of the service request is not exceeded.Next,we propose a NonLinear Interferenceaware(NLI-aware)routing,modulation format,wavelength,and power allocation algorithm.Finally,we conduct simulations under different test conditions.The simulation results indicate that our algorithm can effectively reduce the blocking probability by 23.5%and improve the average link capacity by 3.78%in C+L+S multi-band optical networks.

关 键 词：multiband optical communications multiband optical networks power allocation wavelength assignment 

分 类 号：TN929.1[电子电信—通信与信息系统]