A distributed physical impairment-aware RWA algorithm for WDM networks

Chen Xuan; Zhu Na; Zhang Junyi; Han Xiaoyan

doi:10.13756/j.gtxyj.2011.06.007

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A distributed physical impairment-aware RWA algorithm for WDM networks

- A distributed physical impairment-aware RWA algorithm for WDM networks
- Study on Optical communication Issue 6, Pages: 8-10(2011)
- 作者机构：
  
  江苏大学计算机科学与通信工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2011.06.007
  CLC： TN929.1
- Published：2011，
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[1]陈翾,朱娜,张君怡,韩晓燕.WDM网络分布式物理损伤感知RWA算法[J].光通信研究,2011(06):8-10+59.

Chen Xuan, Zhu Na, Zhang Junyi, et al. A distributed physical impairment-aware RWA algorithm for WDM networks. [J]. (6):8-10(2011)
[1]陈翾,朱娜,张君怡,韩晓燕.WDM网络分布式物理损伤感知RWA算法[J].光通信研究,2011(06):8-10+59. DOI： 10.13756/j.gtxyj.2011.06.007.

Chen Xuan, Zhu Na, Zhang Junyi, et al. A distributed physical impairment-aware RWA algorithm for WDM networks. [J]. (6):8-10(2011) DOI： 10.13756/j.gtxyj.2011.06.007.

摘要

随着传输速率的不断升级

在透明传送过程中

各种损伤的积累会对光信号的质量造成严重影响

因而不能保证高QoS（服务质量）地传输信号。文章提出一种物理损伤感知的分布式RWA（波长路由分配）算法

将物理层传输质量评估分布在中继段路由和波长信道中

分别由损伤感知路由、波长通道传输质量排序和按优先级分配3部分构成。仿真实例证明了该算法的有效性。

Abstract

With the constant escalation of transmission rate

the quality of optical signals will be seriously affected owing to the accumulation of various impairments in the course of transparent transmissions

so that the signals cannot be transmitted with high QoS.In this paper

a distributed physical impairment-aware RWA algorithm is presented

which is composed of three parts

the impairment-aware routing

transmission quality sorting and allocation by priority.In this algorithm

the transmission quality evaluation in the physical layer is distributed in the hop routing and wavelength channels.Simulation results verify the effectiveness of this algorithm.

关键词

分布式物理损伤波长路由分配

Keywords

distributedphysical impairmentRWA

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