Dynamic Impairment-Aware Provisioning based on Quadratic Model in All Optical Networks

被引：0

作者：

Ebrahimzadeh, Amin ^{[1
]}

Rahbar, Akbar Ghaffarpur ^{[1
]}

Alizadeh, Behrooz ^{[2
]}

机构：

[1] Sahand Univ Technol, Comp Networks Res Lab, Tabriz, Iran

[2] Sahand Univ Technol, Dept Appl Math, Tabriz, Iran

来源：

2015 23RD IRANIAN CONFERENCE ON ELECTRICAL ENGINEERING (ICEE) | 2015年

关键词：

Routing and wavelength assignment; dynamic traffic; physical layer impairments; quadratic programming model;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Routing and Wavelength Assignment (RWA) is the most concern in wavelength routed all optical networks. This paper proposes a dynamic impairment aware RWA scheme inspired by the idea of binary quadratic programming formulation for the static RWA problem. In this method, links wavelength occupancy information is collected to be used, in order to establish the upcoming calls via adaptive routing technique. Calculated light-paths' quality are estimated before establishing based on the developed model for some linear physical layer impairments. Performance evaluation results confirm that the proposed impairment aware quadratic programming based RWA (IAQP-RWA) is capable of reducing the blocking rate. Besides, average network throughput in addition to average channel utilization is increased as well. Moreover, proposed algorithm is able to balance the load in the network more successfully, compared to existing shortest path RWA (SP-RWA) and minimum hop RWA (MH-RWA) solutions.

引用

页码：193 / 197

页数：5

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