A differentiated service-supporting RWA approach in intelligent optical networks

Xu Jianyong; Shen Jianhua; He Ye; Liang Jun; Wan Zheng; Xing Yingying; Wang Xiaolian

doi:10.13756/j.gtxyj.2013.03.009

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A differentiated service-supporting RWA approach in intelligent optical networks

- A differentiated service-supporting RWA approach in intelligent optical networks
- Study on Optical communication Issue 3, Pages: 14-17(2013)
- 作者机构：
  
  南京邮电大学通信与信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2013.03.009
  CLC： TN929.1
- Published：2013，
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[1]徐建勇,沈建华,何晔,梁俊,万争,邢盈盈,王孝莲.一种支持区分业务的智能光网络RWA方法[J].光通信研究,2013(03):14-17.

Xu Jianyong, Shen Jianhua, He Ye, et al. A differentiated service-supporting RWA approach in intelligent optical networks. [J]. (3):14-17(2013)
[1]徐建勇,沈建华,何晔,梁俊,万争,邢盈盈,王孝莲.一种支持区分业务的智能光网络RWA方法[J].光通信研究,2013(03):14-17. DOI： 10.13756/j.gtxyj.2013.03.009.

Xu Jianyong, Shen Jianhua, He Ye, et al. A differentiated service-supporting RWA approach in intelligent optical networks. [J]. (3):14-17(2013) DOI： 10.13756/j.gtxyj.2013.03.009.

摘要

针对差异化的用户QoS（服务质量）需求

提供支持区分业务的RWA（路由和波长分配）算法是光网络当前研究的重点。文章提出了一种改进的支持区分服务的智能光网络GWAS（分组波长分配策略）

针对不同等级的业务采用动态可调整的波长分组方案以实现差异化QoS。仿真结果表明

GWAS方案可以保证高优业务比低优业务具有更好的性能:在每根光纤复用9波长和160波长情况下

Mesh与NSFNET网络中高优业务比低优业务的阻塞率在相同业务负荷下最大降低24%与18%和15%与10%。

Abstract

In face to the QoS requirements of differentiated users

Routing and Wavelength Assignment（RWA） algorithm for supporting differentiated services is a current focus of study.This paper proposes an improved Grouped Wavelength Assignment Strategy（GWAS） for differentiated service-supporting intelligent optical networks

which introduces dynamically adjustable wavelength grouping schemes to achieve differentiated QoS for different levels of services.Simulation results show that the proposed strategy can ensure higher-priority services better performances than lower-priority services.Specifically

with the same service load

the traffic blocking rates of higher-priority services in Mesh and NSFNET networks are reduced by 24% and 18% at the maximum when signals at 9 wavelengths are multiplexed in each fiber and by 15% and 10% when signals at 160 wavelengths multiplexed in each fiber respectively.

关键词

智能光网络路由和波长分配区分业务分组波长分配策略服务质量

Keywords

intelligent optical networkRWAdifferentiated servicesGWASQoS

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