文档介绍：OBS 网络的 TCP 性能分析与改进*
袁巍杜平李津生洪佩琳
Email:******@.
(中国科学技术大学电子工程与信息科学系合肥 230027)
摘要光突发交换(OBS,Optical Burst Switch)是下一代 IP-over-DWDM 光网络最有前途的解决方
案之一。Burst 组装算法和数据通道调度算法是 OBS 网络的关键技术,TCP 协议是当前主要的传输层
协议。该文对 OBS 网络的 TCP 性能进行分析,并提出了基于源地址集的组装算法和 ACK 优先调度算法。
仿真结果表明使用该算法可以显著改善 OBS 网络的 TCP 性能。
关键词光突发交换 Burst 组装算法数据通道调度算法 TCP
The Analysis and Improvement of TCP performance
in Optical Burst works
Yuan Wei Du ping Li jin-sheng Hong pei-lin
(Department of Electronic Engineering and Information Science, University of Science and Technology of China,
HeiFei 230027)
Abstract: Optical Burst Switching (OBS) has been proposed to be the most promising architecture for the Next
IP-over-DWDM work. Burst assembling Algorithm and Data scheduling Algorithm are the two key
issues in OBS research. TCP is the most important translation protocol in today and work. In this paper,
the TCP performance of work are analyzed and BSAS assembling algorithm and AP scheduling algorithm
are be presented to improve the TCP performance. The simulation results proved our algorithms very efficient.
Key words: Optical Burst Switching (OBS) Burst Assembly Algorithm
Data Channel Scheduling Algorithm TCP
一、引言
快速增长的导致了高传输容量的 IP 路由器的需求以空前的速度增长,DWDM
技术的进步使得有可能开发具有很大容量的光纤,目前的 DWDM 技术能实现每条光纤传输
160 个波长,每个波长容量为 10Gb/s,总的传输容量达到 [1]。建造一个能够直接在
WDM 链路上传输 IP 分组的光路由器成为下一代光