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On the wavelength assignment problem in multifiber WDM star and ring networks

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2 Author(s)
Guangzhi Li ; AT&T Res. Labs., Florham Park, NJ, USA ; Simha, R.

This paper studies-the off-line wavelength assignment problem in star and ring networks that deploy multiple fibers between nodes and use wavelength division multiplexing (WDM) for transmission. The results in this paper show that the ability to switch between fibers increases wavelength utilization. In particular, sharper per-fiber bounds on the number of required wavelengths are derived for the multifiber version of the assignment problem in star and ring networks. Additionally, the complexity of the problem is studied and several constrained versions of the problem are also considered for star and ring networks. A summary of contributions is provided

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Networking, IEEE/ACM Transactions on  (Volume:9 ,  Issue: 1 )