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A new clos-type model of wide-sense nonblocking multicast WDM optical switching network

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2 Author(s)
Yanjun Liu ; Sch. of Comput. Sci. & Technol., Anhui Univ., Hefei, China ; Yuanlu Bao

As optical networking becomes a promising choice to meet the ever-increasing demands on bandwidth, constructing multicast wavelength division multiplexing (WDM) switching networks with cheap components and low complexity is a key issue. On the basis of four-stage Clos network, we propose an optimal model of wide-sense nonblocking multicast (WSNBM) WDM optical switching networks. Our analysis shows that the proposed model reduces hardware complexity compared to existing architectures. In addition, the new model has a very simple routing algorithm and does not require multicast capability for the switches in the input stage and the second middle stage. Therefore, our model is much more cost-effective and thus practical for both optical circuit-switching and optical packet/burst switching.

Published in:

Computer Science and Service System (CSSS), 2011 International Conference on

Date of Conference:

27-29 June 2011