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On the performance of different node configurations in multi-fiber optical packet-switched networks

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Abstract

With the development of optical packet-switching (OPS) technologies, multi-fiber OPS networks will play an important role in the future data transmissions. In such networks, instead of constructing some extremely expensive node configurations with strictly non-blocking switching function, a more practical solution is multi-board switches that contain a number of small-sized switching boards. In this article, we have evaluated the performance of several different multi-board switches, based on the following two main objectives: (i) better understanding the effects of different connection schemes between switching boards and optical buffers and (ii) investigating possible schemes for achieving comparable performance to that of the ideal, strictly non-blocking switches. Extensive simulation results have shown that unlike circuit-switched net- works, multi-board OPS cannot easily perform comparably to the strictly non-blocking switch by having slightly more fibers per link. Also, such a problem can be tackled by several different approaches. The most efficient one is to equip the switch with more buffers rather than to increase the switching-board size or to enhance the buffer sharing between different switching boards.

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Authors and Affiliations

  1. Network Technology Research Centre, School of Electrical and Electronic Engineering, Nanyang Technological University, Building S2.1, 50 Nanyang Avenue, Singapore, 737553, Singapore

    Yi Li & Gaoxi Xiao

  2. Department of Electronic, Electrical and Computer Engineering, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK

    H. Ghafouri-Shiraz

Authors
  1. Yi Li
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  2. Gaoxi Xiao
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  3. H. Ghafouri-Shiraz
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Correspondence to Gaoxi Xiao.

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Li, Y., Xiao, G. & Ghafouri-Shiraz, H. On the performance of different node configurations in multi-fiber optical packet-switched networks. Photon Netw Commun 14, 11–22 (2007). https://doi.org/10.1007/s11107-006-0039-9

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  • DOI: https://doi.org/10.1007/s11107-006-0039-9

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