激光技术2025，Vol.49Issue(3)：451-457,7.DOI:10.7510/jgjs.issn.1001-3806.2025.03.020
多芯光纤中时空频碎片感知的频谱分配算法
Spectrum allocation algorithm based on temporal-spatio-frequency fragmentation perception in multi-core fiber
摘要
Abstract
To effectively address the issue of spectrum fragmentation resulting from resource allocation in space division multiplexing elastic optical networks(SDM-EON)of multi-core fiber,a load resource synergy temporal-spatio-frequency(LRS-TSF)fragmentation perception algorithm was proposed.Firstly,a routing selection strategy was designed by considering the path load and service frequency slot requirements,prioritizing paths with lower path load and fewer service frequency slot demands.Then,a 3-D measurement of available spectrum resources was conducted from the perspective of time,space,and frequency,introducing a TSF fragmentation perception model to avoid spectrum fragmentation during the service allocation process and reserve contiguous idle spectrum resources for subsequent services.Simulation results demonstrate that when the load ranges from 400 Erlang to 960 Erlang,the LRS-TSF algorithm achieves better performance in terms of blocking probability,spectrum utilization,and fragmentation rate compared to other algorithms.The study provides a reference for further addressing the issue of spectrum fragmentation in elastic optical networks with spatial division multiplexing.关键词
光通信/空分复用弹性光网络/时域空间域频域(时空频)碎片感知/频谱碎片/负载资源协同Key words
optical communication/space division multiplexing elastic optical networks/temporal-spatio-frequency(TSF)fragmentation perception/spectrum fragmentation/load-resource synergy分类
电子信息工程引用本文复制引用
陈光明,任丹萍,邓玉静,胡劲华,赵继军..多芯光纤中时空频碎片感知的频谱分配算法[J].激光技术,2025,49(3):451-457,7.基金项目
河北省科技计划资助项目(22567624H) （22567624H）
河北省研究生示范课建设项目(KCJSX2024081) （KCJSX2024081）
河北省自然科学基金资助项目(F2022402007) （F2022402007）
