光通信技术2025，Vol.49Issue(3)：73-78,6.DOI:10.13921/j.cnki.issn1002-5561.2025.03.012
弹性光网络中时频碎片感知的可生存多路径资源分配算法
Time-frequency fragmentation-aware survivable multipath resource allocation algorithm in elastic optical network
摘要
Abstract
To address the survivability requirements of service transmission in elastic optical network(EON)and the spectrum fragmentation caused by dynamic allocation and release of spectrum resources,a time-frequency fragmentation-aware survivable multi-path resource allocation(TFFA-SMRA)algorithm is proposed.This algorithm employs multi-path transmission technology to ensure service survivability and calculates link weights by integrating link length and spectrum resource status to identify can-didate routes,thereby alleviating service blocking issues caused by link resource bottlenecks.Additionally,the algorithm intro-duces a fragmentation-aware spectrum allocation mechanism based on a time-frequency domain matching metric.Simulation re-sults show that under a specific network topology with a traffic load of 400 Erlang,compared to the load balancing and time-fre-quency(LB-TF)algorithm,the TFFA-SMRA algorithm reduces the service blocking rate by 15.7％ while improving spectrum u-tilization by 8.52％.关键词
弹性光网络/生存性/路由选择/频谱分配/频谱碎片Key words
elastic optical networks/survivability/routing selection/spectrum allocation/spectrum fragmentation分类
信息技术与安全科学引用本文复制引用
吕晶晶,冯楠,左晓博,晏丹,任丹萍,赵继军..弹性光网络中时频碎片感知的可生存多路径资源分配算法[J].光通信技术,2025,49(3):73-78,6.基金项目
河北省硕士在读研究生创新能力培养资助项目(CXZ-ZSS2024101)资助 （CXZ-ZSS2024101）
河北省省级科技计划资助项目(22567624H)资助. （22567624H）
