Design and implementation of priority and time-window based traffic scheduling and routing-spectrum allocation mechanism in elastic optical networks

8th International Conference on Advanced Infocomm Technology

Wang, Honghuan^1 ; Xing, Fangyuan^1 ; Yin, Hongxi^1 ; Zhao, Nan^1 ; Lian, Bizhan^2

Lab of Optical Communications and Photonic Technology, School of Information and Communication Engineering, Dalian University of Technology, Dalian

116034, China^1

HAEPC Information and Telecommunication Company, Zhengzhou

450000, China^2

关键词: Design and implementations;    Elastic optical networks;    Frequency resources;    Greedy algorithms;    Routing and spectrum allocations;    Shortest path algorithms;    Spectrum allocation;    Traffic scheduling;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/679/1/012021/pdf
DOI  :  10.1088/1742-6596/679/1/012021

来源: IOP

【 摘 要 】

With the explosive growth of network services, the reasonable traffic scheduling and efficient configuration of network resources have an important significance to increase the efficiency of the network. In this paper, an adaptive traffic scheduling policy based on the priority and time window is proposed and the performance of this algorithm is evaluated in terms of scheduling ratio. The routing and spectrum allocation are achieved by using the Floyd shortest path algorithm and establishing a node spectrum resource allocation model based on greedy algorithm, which is proposed by us. The fairness index is introduced to improve the capability of spectrum configuration. The results show that the designed traffic scheduling strategy can be applied to networks with multicast and broadcast functionalities, and makes them get real-time and efficient response. The scheme of node spectrum configuration improves the frequency resource utilization and gives play to the efficiency of the network.