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应用科学学报 ›› 2005, Vol. 23 ›› Issue (6): 563-567.

• 论文 • 上一篇    下一篇

具有安全间隔和通用参数的OBS突发装配算法

李雷, 张兴, 张明德, 孙小菡   

  1. 东南大学电子工程系, 江苏南京 210096
  • 收稿日期:2004-07-03 修回日期:2004-12-03 出版日期:2005-11-30 发布日期:2005-11-30
  • 作者简介:李雷(1978-),男,江苏徐州人,博士生,E-mail:lil_seu@seu.edu.cn;张明德(1939-),男,上海人,教授,博导;孙小菡(1955-)女,安徽黄山人,教授,博导,E-mail:xhsun@seu.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(60272048)

OBS Burst Assembly Algorithm with Safety Space and Universal Parameters

LI Lei, ZHANG Xing, ZHANG Ming-de, SUN Xiao-han   

  1. Department of Electronic Engineering, Southeast University, Nanjing 210096, China
  • Received:2004-07-03 Revised:2004-12-03 Online:2005-11-30 Published:2005-11-30

PDF

78

被引次数

3

摘要： 研究了光突发交换边缘路由器上的突发装配,提出了带安全间隔的突发装配具体实现算法,同时为体现通用性引入了单位化输入比特率的概念,以适应不同实际网络中的最小分组长度和输入比特率.基于这一算法,通过网络仿真,讨论了在自相似流量时,包括突发长度极值、装配时间阈值等在内的各类参数设置对突发产生、突发长度分布、分组丢失率、输出数据总量及有效信息率等的影响.

关键词: 波分复用, 光突发交换, 装配算法, 自相似流量

Abstract: A novel burst assembly algorithm with safety space is proposed for optical burst switching in edge routers.Moreover, a concept of unit input bit rate is introduced to improve universality.Based on this algorithm and self-similar traffic, the assembly process is simulated.Influences on burst creation, burst length distribution, packet loss ratio, total output data, and valid information ratio are discussed by setting appropriate parameter values including ultimate burst lengths, assembly time threshold, etc.

Key words: assembly algorithm, self-similar traffic, wavelength division multiplexing, optical burst switching

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