北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2013, Vol. 36 ›› Issue (2): 70-73.doi: 10.13190/jbupt.201302.70.huangsh

• 论文 • 上一篇    下一篇

POBS网络中异步突发延迟插空调度算法

黄胜,李根,庞洪丰,李玲霞   

  1. 重庆邮电大学 重庆市光纤通信技术重点实验室, 重庆 400065
  • 收稿日期:2012-04-28 修回日期:2013-01-09 出版日期:2013-04-30 发布日期:2013-03-25
  • 通讯作者: 黄胜 E-mail:25351521@qq.com
  • 作者简介:黄胜(1974-),男,副教授,E-mail:huangs@cqupt.edu.cn
  • 基金资助:

    国家重点基础研究发展计划项目(2012CB315803);国家自然科学基金项目(61071117,61171158,61275077);重庆市科委项目(2010BB2413,2010BB2409);重庆市教委项目(KJ110519,KJ110527)

A Delayed Insert Scheduling Algorithm for Asynchronous Burst in POBS

HUANG Sheng, LI Gen, PANG Hong-feng, LI Ling-xia   

  1. Key Laboratory of Optical Fiber Communications Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Received:2012-04-28 Revised:2013-01-09 Online:2013-04-30 Published:2013-03-25
  • Contact: sheng HUANG E-mail:25351521@qq.com

摘要:

为了对多态光突发交换(POBS)中异步突发进行合理调度,达到降低异步突发丢失的目的,提出一种异步突发延迟插空调度算法.利用POBS边缘节点同步同期业务的传输情况和新汇聚的异步突发重叠度值,将异步突发延迟调度到与之有相同目的地址的周期业务间隔中.仿真结果表明,本算法能很好地降低POBS网络中异步突发的丢失率.

关键词: 多态光突发交换, 周期业务, 调度算法

Abstract:

In order to schedule effectively the asynchronous burst in polymorphous optical burst switching (POBS) and reduce burst loss rate, an asynchronous burst delayed insert scheduling algorithm is proposed. Based on the transmission state of periodic traffic in the source ingress node of POBS network and the overlapping degree of the new assembled asynchronous burst, the proposed algorithm delays the burst to the gap of periodic traffic that has the same destination edge node of the burst. The simulation results show that the proposed algorithm can reduce the asynchronous burst loss rate of POBS.

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