光通信技术2024，Vol.48Issue(3)：30-37,8.DOI:10.13921/j.cnki.issn1002-5561.2024.03.006
卫星光网络中基于DQN的匹配度感知波长路由算法
Wavelength routing algorithm with matching degree awareness based on DQN in satellite optical networks
摘要
Abstract
In order to further reduce the traffic blocking rate of satellite optical networks,this paper proposes a wavelength routing algorithm based on deep Q-networks(DQN)and matching perception.This algorithm first designs a path wavelength matching factor to reflect the common free wavelengths between the current path and the link of the next hop node.Subsequently,the algo-rithm takes into account multiple factors such as path wavelength matching,adjacent link delay,and the shortest number of hops from the next hop node to the destination node,and constructs a reward function based on these factors.When allocating wave-lengths,in order to have more free wavelengths on adjacent links for subsequent service requests,this paper designs an adjacent link wavelength matching index to describe the alignment of free wavelengths between the path and its adjacent links.The simu-lation results show that this algorithm can reduce network blocking rate and delay,and improve wavelength utilization.关键词
卫星光网络/路由波长分配/深度强化学习/波长匹配度Key words
satellite optical networks/routing and wavelength assignment/deep reinforcement learning/wavelength matching degree分类
信息技术与安全科学引用本文复制引用
艾琪洋,何荣希,林润峰..卫星光网络中基于DQN的匹配度感知波长路由算法[J].光通信技术,2024,48(3):30-37,8.基金项目
国家自然科学基金项目(61371091、61801074、62371085)资助 （61371091、61801074、62371085）
大连市科技创新基金项目(2019J11CY015)资助. （2019J11CY015）
