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基于频谱位示图的联合优化路由频谱分配算法

Joint-Optimization Routing and Spectrum Allocation Algorithm Based on Spectrum Bit Diagram

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摘要

为提高频谱利用率,同时减少光路的建立时延和阻塞率,提出了一种基于时延和频谱利用率联合优化路由频谱分配 (CODS-RSA)算法。CODS-RSA算法在提前计算期间,利用提前计算控制模型、频谱位示图和最佳分配算法,建立了光连接请求业务数据库。CODS-RSA算法根据光连接请求业务数据库和实时更新计算结果,进行了路由频谱分配(RSA)。仿真结果表明,CODS-RSA算法提前计算减少了光路的建立时延,频谱位示图和最佳分配算法的分配频谱提高了频谱利用率,也相对降低了业务请求的阻塞率。

Abstract

To improve the spectrum utilization rate and reduce the establishment delay and blocking rate of an optical path, a joint-optimization routing spectrum allocation (CODS-RSA) algorithm based on the delay and spectrum utilization rate is proposed herein. The CODS-RSA algorithm establishes an optical connection request service database by calculating a control model, a spectrum bit diagram, and an optimal allocation algorithm during a preliminary calculation period. Then, the CODS-RSA algorithm performs routing spectrum allocation based on the optical connection request service database and real-time update calculation. The simulation results show that preliminary calculations of the CODS-RSA algorithm reduce the optical path’s establishment delay; the allocated spectra of optimal allocation algorithm and the spectrum bit diagram improve the spectrum utilization; the service request’s blocking rate is relatively reduced as well.

Newport宣传-MKS新实验室计划
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DOI:10.3788/LOP56.130602

所属栏目:光纤光学与光通信

基金项目:河南省高等学校青年骨干教师培养计划;

收稿日期:2018-12-19

修改稿日期:2019-01-24

网络出版日期:2019-07-01

作者单位    点击查看

张曙光:安阳学院航空工程学院, 河南 安阳 455000
李正贤:安阳学院航空工程学院, 河南 安阳 455000
王伟:聊城大学计算机学院, 山东 聊城 252000

联系人作者:张曙光(112943400@qq.com)

备注:河南省高等学校青年骨干教师培养计划;

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引用该论文

Shuguang Zhang, Zhengxian Li, Wei Wang. Joint-Optimization Routing and Spectrum Allocation Algorithm Based on Spectrum Bit Diagram[J]. Laser & Optoelectronics Progress, 2019, 56(13): 130602

张曙光, 李正贤, 王伟. 基于频谱位示图的联合优化路由频谱分配算法[J]. 激光与光电子学进展, 2019, 56(13): 130602

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