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Optimized TQ-MAP: An Adaptive Mapping Mechanism to Guarantee the Coherence of QoS Support from IP to OBS

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Abstract

Because of its scalability, the idea of coarse packet classification can be utilized to OBS networks. However, due to the limited number of priorities supported by OBS networks, we usually adopt a many-to-one composite class burst (CCB) assembly technique, e.g., N:1-CCB. In this kind of technique, there are two aspects related to scalable QoS support, i.e., mapping relationship and assembly resource allocation. This paper simultaneously takes the two aspects into consideration, and proposes a novel assembly mapping mechanism, called Optimized TQ-MAP, in which the most important feature is adaptivity. Based on nonlinear programming and differential calculus, it allocates the burst assembling capacity between classes fairly, efficiently and differentially, and matches IP QoS requirement with OBS QoS capacity as possible as it can. The simulation results show that Optimized TQ-MAP is more adaptive, and can efficiently guarantee the coherence of QoS support from IP to OBS.

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Authors and Affiliations

  1. Optical Communication Institute, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China

    Xiaolong Yang, Youju Mao & Mingrui Dang

  2. the National Lab of Broadband Optical Fiber Transmission and Communication Networks, University of Electronic Science and Technology, Chengdu, 610054, China

    Xiaolong Yang & Lemin Li

  3. Institute of Computer Science and Engineering, University of Electronic Science and Technology, Chengdu, 610054, China

    Min Zhang

Authors
  1. Xiaolong Yang
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  2. Youju Mao
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  3. Mingrui Dang
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  4. Min Zhang
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  5. Lemin Li
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Correspondence to Xiaolong Yang.

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Yang, X., Mao, Y., Dang, M. et al. Optimized TQ-MAP: An Adaptive Mapping Mechanism to Guarantee the Coherence of QoS Support from IP to OBS. Photonic Network Communications 6, 279–287 (2003). https://doi.org/10.1023/A:1025631521874

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