频谱效率优先的任播路由冲突感知的弹性光网络资源重配置

发布时间：2018-05-15 13:16

本文选题：弹性光网络 + 冲突感知　；参考：《电子与信息学报》2017年07期

【摘要】：针对混合供电的数据中心互联弹性光网络中,为了降低任播业务传输的阻塞率和能耗,论文提出一种基于频谱效率优先的冲突感知(CSEFR)任播路由资源分配策略。该策略首先计算任播阻塞率优化光路,按频谱效率优先准则对光路重配置排序,用首次命中(FF)方式分配频谱。如果任播的阻塞率优化的光路目的节点是不可再生能源供电数据中心,则预留此阻塞率优化光路,并为任播建立一条连接可再生能源供电数据中心频谱效率次优的能耗优化光路,使用末端命中(LF)频谱分配方式;若该阻塞率优化光路连接的目的节点是可再生能源数据中心,且与其他任播的能耗优化光路频谱分配冲突,将冲突的任播能耗优化光路重配置到其预留的阻塞率优化光路传输以解决光路的频谱冲突问题。仿真结果表明,论文提出的CSEFR策略能在大幅降低网络不可再生能耗的同时,实现阻塞率和能耗折中的路由策略,而且对不同数据中心配置的网络环境具有普适性。
[Abstract]:In order to reduce the blocking rate and energy consumption of any broadcast traffic in a data center interconnected elastic optical network with hybrid power supply, a conflict aware CSEFR (CSEFR) routing resource allocation strategy based on spectrum efficiency priority is proposed in this paper. The scheme firstly calculates the blocking rate of any broadcast and optimizes the optical path. The reconfiguration of the optical path is sorted according to the spectrum efficiency priority criterion and the spectrum is allocated by the first-hit FFF method. If the optical path destination node with optimized blocking rate for any broadcast is a non-renewable energy supply data center, the blocking rate is reserved to optimize the optical path. A sub-optimal energy consumption optical path connecting the renewable energy supply data center is established for any broadcast, and the end-hit LF-based spectrum allocation method is used; if the target node of the optimized optical path connection with the blocking rate is the renewable energy data center, In addition, the optimal optical path reconfiguration is arranged to its reserved blocking rate to solve the problem of spectrum conflict of optical path, which conflicts with the energy consumption of other broadcast systems and optimizes the spectrum allocation of the optical path in order to solve the problem of spectrum conflict of the optical path. The simulation results show that the proposed CSEFR strategy can significantly reduce the network non-renewable energy consumption and achieve the congestion rate and energy compromise routing strategy, and the network environment with different data center configuration is universal.
【作者单位】：重庆邮电大学光纤通信技术与网络重点实验室;重庆邮电大学自动化学院;
【基金】：国家自然科学基金(61275077) 重庆市教委基金(KJ1400421) 重庆市科委基础与前沿基金(2015jcyj A40024)~~
【分类号】：TN929.1

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