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A new proportional differentiation scheme based on batch scheduling for optical burst switching networks

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Abstract

Optical burst switching (OBS) is a promising switching paradigm for building the next generation optical internet. The proportional differentiation model is very convenient for network operators to quantitatively adjust the quality differentiation among service classes. To provide proportional differentiated services for OBS networks, a proportional differentiation scheme based on batch scheduling is proposed in this article. The scheme adopts the batch scheduling idea to reserve data channel resources for a batch of data bursts. It helps to decrease burst dropping probability. When some data bursts are unsuccessfully scheduled, a preemption method is used to keep a proportional burst dropping probability among service classes according to the expected burst dropping probability equations given by the proportional differentiation model. The scheme has low computational complexity. Simulation results show that the scheme can provide proportional differentiated services and efficiently decrease the burst dropping probability.

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Authors and Affiliations

  1. Special Research Center for Optical Internet and Wireless Information Networks, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China

    Sheng Huang, Keping Long, Xiaolong Yang, Qianbin Chen & Yun Li

  2. College of Communication Engineering, Chongqing University, Chongqing, 400044, China

    Sheng Huang

  3. School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China

    Keping Long & Xiaolong Yang

Authors
  1. Sheng Huang
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  2. Keping Long
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  3. Xiaolong Yang
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  4. Qianbin Chen
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  5. Yun Li
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Correspondence to Sheng Huang.

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Huang, S., Long, K., Yang, X. et al. A new proportional differentiation scheme based on batch scheduling for optical burst switching networks. Photon Netw Commun 18, 49–54 (2009). https://doi.org/10.1007/s11107-008-0169-3

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  • DOI: https://doi.org/10.1007/s11107-008-0169-3

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