The Strategy of Bottleneck Links Upgrade First in Optical Networks

HUANG Chong; LIU Feng-qing

doi:10.13756/j.gtxyj.2016.03.002

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The Strategy of Bottleneck Links Upgrade First in Optical Networks

- The Strategy of Bottleneck Links Upgrade First in Optical Networks
- Study on Optical communication Issue 3, Pages: 4-6(2016)
- 作者机构：
  
  南京邮电大学光电工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2016.03.002
  CLC： TN929.1
- Published：2016，
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[1]黄冲,刘逢清.光网络中基于瓶颈链路优先的升级策略[J].光通信研究,2016(03):4-6.

HUANG Chong, LIU Feng-qing. The Strategy of Bottleneck Links Upgrade First in Optical Networks. [J]. (3):4-6(2016)
[1]黄冲,刘逢清.光网络中基于瓶颈链路优先的升级策略[J].光通信研究,2016(03):4-6. DOI： 10.13756/j.gtxyj.2016.03.002.

HUANG Chong, LIU Feng-qing. The Strategy of Bottleneck Links Upgrade First in Optical Networks. [J]. (3):4-6(2016) DOI： 10.13756/j.gtxyj.2016.03.002.

摘要

针对固定栅格WDM（波分复用）光网络频谱利用率低的缺点

需对网络使用灵活栅格技术进行升级

提出了基于瓶颈链路优先的升级策略。文章定义了瓶颈链路

提出两种基于瓶颈链路的升级策略:链路密度策略和拥塞链路策略

并对这两种策略进行仿真

仿真结果显示两种策略都能够降低带宽阻塞率。链路密度策略的带宽阻塞率降低程度取决于所取阈值的不同

而拥塞链路策略能有效地降低带宽阻塞率。

Abstract

In order to solve the inefficient spectrum utilization problem in fixed-grid WDM networks

an upgrading scheme is proposed to upgrade the bottleneck links from fixed grid to flex grid networks.The paper defines the concept of bottleneck links

and proposes two strategies:the Link Density（LD）strategy and the congestion strategy.Numerical results show that the Bandwidth Blocking Rate（BBR）is reduced by the two strategies.The LD strategy performs different BBR reduction depending on different thresholds and the congestion strategy can effectively reduce the BBR.

关键词

波分复用网络灵活栅格瓶颈链路带宽阻塞率

Keywords

WDM networksflex gridbottleneck linkBBR

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Related Institution

Special Research Center for Optical Internet and Wireless Information Networks,Chongqing University of Posts and Telecommunications

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