Research on priority supported burst segmentation and optical buffering in OBS networks

Dai Tengjiao

doi:10.13756/j.gtxyj.2013.06.007

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Research on priority supported burst segmentation and optical buffering in OBS networks

- Research on priority supported burst segmentation and optical buffering in OBS networks
- Study on Optical communication Issue 6, Pages: 4-7(2013)
- 作者机构：
  
  中南民族大学计算机科学学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2013.06.007
  CLC： TN929.1
- Published：2013，
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[1]戴腾蛟.OBS网络支持优先级的分割及光缓存方法研究[J].光通信研究,2013(06):4-7.

Dai Tengjiao. Research on priority supported burst segmentation and optical buffering in OBS networks. [J]. (6):4-7(2013)
[1]戴腾蛟.OBS网络支持优先级的分割及光缓存方法研究[J].光通信研究,2013(06):4-7. DOI： 10.13756/j.gtxyj.2013.06.007.

Dai Tengjiao. Research on priority supported burst segmentation and optical buffering in OBS networks. [J]. (6):4-7(2013) DOI： 10.13756/j.gtxyj.2013.06.007.

摘要

为了有效降低OBS（光突发交换）网络中突发包的丢失率

在多波长信道情况下

对现有的基于优先级与突发包分割的光缓存方法进行了研究和改进。改进后的方法结合优先级与分割机制

引入了一种交叉型光缓存结构来缓存被分割的冲突包

同时引入对空闲波长信道和光缓存延迟时间的判断来进一步确保低的数据丢失率。实验仿真结果表明

该方法可以有效降低突发数据包的丢失率

同时保证OBS网络中不同优先级业务的服务质量

从而提升整个网络的性能。

Abstract

In order to effectively reduce the burst loss probability of Optical Burst Switching（OBS）networks

the existing optical buffering schemes based on priority and burst segmentation are studied and improved in the case of multi-wavelength channels.In the improved scheme combined with the priority and burst segmentation mechanism

a cross-type optical buffer structure is introduced to buffer the segmented bursts and also the judgment of the idle channels and optical buffer delay time to ensure lower packet loss rate.The simulation results show that this scheme can effectively reduce the packet loss rate and guarantee the QoS of different priorities in OBS networks

thus improving the performance of the entire network.

关键词

光突发交换优先级光缓存分割丢失率

Keywords

OBSpriorityoptical buffersegmentationloss rate

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