一种新的基于FRR的OBS突发组装算法

山东大学学报(工学版)

一种新的基于FRR的OBS突发组装算法

赵毅¹，赵珑²，张有志¹，齐志峰¹

1.山东大学信息科学与工程学院，山东济南250100；2.中国网通集团山东通信公司，山东济南250001

收稿日期:2005-02-21 修回日期:1900-01-01 出版日期:2006-02-24 发布日期:2006-02-24
通讯作者: 赵毅

A new burst assembly algorithm for the FRRenabled OBS networks

ZHAO Yi¹，ZHAO Long²，ZHANG You-zhi¹，QI Zhi-feng¹

1. School of Information Science and Engineering,Shandong University，Jinan 250100，China；

Received:2005-02-21 Revised:1900-01-01 Online:2006-02-24 Published:2006-02-24
Contact: ZHAO Yi

摘要/Abstract

摘要： 为了适应大数据量的实时性和准实时性业务，降低突发延迟成为光突发交换（OBS）网络设计中要解决的一个重要问题.前向资源预留（FRR）是OBS网络中可以有效减小突发延迟的组装算法，但在带宽利用率方面却存在缺陷.针对FRR算法中存在的问题，提出了精确组装FRR算法（PAFRR）.理论分析和仿真结果都验证了该算法在提高系统带宽利用率方面的有效性.

关键词: 光突发交换, 前向资源预留, 延迟缩短, 带宽利用率

Abstract: In order to meet the future need of realtime and quasirealtime applications, the OBS network design requires short latency time. FRR (forward resource reservation) algorithm is an efficient method to reduce the endtoend data burst delay, but it still has some defections in bandwidth availability. Aiming at the potential problems in the FRR algorithm, PAFRR (precision assembly with forward resource reservation) is proposed. Both theoretical analysis and simulation results demonstrate the advantages of the PAFRR over to the FRR scheme.

Key words: forward resource reservation（FRR）, delay reduction, bandwidth usage efficiency , optical burst switching （OBS）

中图分类号:

TN919.8

赵毅,赵珑,张有志,齐志峰 . 一种新的基于FRR的OBS突发组装算法[J]. 山东大学学报(工学版), 2006, 36(1): 34-36 .

ZHAO Yi,ZHAO Long,ZHANG You-zhi,QI Zhi-feng . A new burst assembly algorithm for the FRRenabled OBS networks[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2006, 36(1): 34-36 .

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