Study on congestion avoidance-based pre-deflection routing in OBS networks

Yang Xiaofei; Wang Xiong; Huang Sheng; Li Lingxia; Sun Liqin

doi:10.13756/j.gtxyj.2012.01.009

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Study on congestion avoidance-based pre-deflection routing in OBS networks

- Study on congestion avoidance-based pre-deflection routing in OBS networks
- Study on Optical communication Issue 1, Pages: 9-11(2012)
- 作者机构：
  
  重庆邮电大学重庆市光纤通信技术重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2012.01.009
  CLC： TN929.1
- Published：2012，
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[1]杨晓非,王雄,黄胜,李玲霞,孙丽琴.OBS网络中基于拥塞避免的提前偏射路由研究[J].光通信研究,2012(01):9-11+15.

Yang Xiaofei, Wang Xiong, Huang Sheng, et al. Study on congestion avoidance-based pre-deflection routing in OBS networks. [J]. (1):9-11(2012)
[1]杨晓非,王雄,黄胜,李玲霞,孙丽琴.OBS网络中基于拥塞避免的提前偏射路由研究[J].光通信研究,2012(01):9-11+15. DOI： 10.13756/j.gtxyj.2012.01.009.

Yang Xiaofei, Wang Xiong, Huang Sheng, et al. Study on congestion avoidance-based pre-deflection routing in OBS networks. [J]. (1):9-11(2012) DOI： 10.13756/j.gtxyj.2012.01.009.

摘要

突发竞争是OBS（光突发交换）网络需要解决的关键问题

偏射路由作为一种有效的竞争解决方案而被广泛研究。文章提出了一种基于拥塞避免的提前偏射路由算法

利用周期性反馈的网络拥塞信息按一定概率提前偏射部分突发包。与传统的最短偏射路由算法相比

本算法达到了避免拥塞以及均衡网络负载的目的。仿真结果表明:文章所提算法在突发丢失率、吞吐量以及平均链路利用率方面性能都有所提高。

Abstract

Burst contention is a key problem in Optical Burst Switching（OBS） networks.As an effective solution to contention

deflection routing is extensively studied.This paper proposes a Congestion Avoidance-based Pre-Deflection Routing（CAPDR） algorithm.In this algorithm

on the basis of the periodically fed back information about network congestion

the algorithm deflects in advance parts of the burst packets according to a certain probability

thus realizing congestion avoidance and network load balancing.Simulation results show that the proposed algorithm outperforms the conventional shortest path deflection routing algorithm in terms of Burst Loss Ratio（BLR）

throughput and average link utilization.

关键词

光突发交换拥塞避免突发竞争偏射路由负载均衡

Keywords

optical burst switchingcongestion avoidanceburst contentiondeflection routingload balancing

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湖北武汉430019

Air Force Radar Academy

Wuhan Research Institute of Posts & Telecommunications

Xi’an University of Posts and Telecommunications

College of Computer Science,South-Central University for Nationalities

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