Considerations of a network risk-based RWA algorithm

Gao Huisheng; Wang Faning

doi:10.13756/j.gtxyj.2015.05.004

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Considerations of a network risk-based RWA algorithm

- Considerations of a network risk-based RWA algorithm
- Study on Optical communication Issue 5, Pages: 12-14(2015)
- 作者机构：
  
  华北电力大学电子与通信工程系
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2015.05.004
  CLC： TN929.1
- Published：2015，
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[1]高会生,王法宁.一种基于网络风险的路由波长分配算法[J].光通信研究,2015(05):12-14+18.

Gao Huisheng, Wang Faning. Considerations of a network risk-based RWA algorithm. [J]. (5):12-14(2015)
[1]高会生,王法宁.一种基于网络风险的路由波长分配算法[J].光通信研究,2015(05):12-14+18. DOI： 10.13756/j.gtxyj.2015.05.004.

Gao Huisheng, Wang Faning. Considerations of a network risk-based RWA algorithm. [J]. (5):12-14(2015) DOI： 10.13756/j.gtxyj.2015.05.004.

摘要

大多数RWA（路由波长分配）问题研究都是基于阻塞率、负载均衡、信号损伤和物理攻击的

很少涉及到业务与链路工作状态的依赖关系

然而链路的失效必然造成全网业务安全性能的下降。文章从业务风险的角度描述链路失效对全网业务的影响

提出了一种基于网络风险的RWA算法——R-RWA。在路由分配阶段

该算法把具有较小网络风险的路由方案分配给光路请求

以降低链路失效对全网业务的影响。仿真结果表明

与经典SP（最短路径）算法相比

该算法可以有效地降低网络的安全风险

提高网络的抗风险能力。

Abstract

Most of the Routing and Wavelength Assignment（RWA）problems are related to blocking rate

load balancing

signal damage and physical attacks

and rarely involved with the dependency of services on the link working state.However

link failures will surely cause the deterioration of the traffic security performances of the entire network.From the perspective of traffic risks

this article describes the impacts of link failures on the entire network services and proposes a network risk-based RWA algorithm

i.e.R-RWA.In the phase of routing assignment

this algorithm allocates the routing scheme with minor network risks to lightpath requests so as to reduce the impacts of the link failures on the entire network services.The simulation results show that compared with the classical Dijkstra + FF

this algorithm can effectively reduce the network security risks and improve the network anti-risk ability.

关键词

光网络路由波长分配链路失效风险

Keywords

optical networkRWAlink failurerisk

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