Broadcast Routing with Minimum Wavelength Conversion in WDM Optical Networks

Lu Ruan () and Weili Wu ()
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Lu Ruan: Iowa State University
Weili Wu: University of Texas at Dallas

Journal of Combinatorial Optimization, 2005, vol. 9, issue 2, No 7, 223-235

Abstract: Abstract We consider dynamic routing of broadcast connections in WDM optical networks. Given the current network state, we want to find a minimum set of network nodes S such that a broadcast routing using only the nodes in S as wavelength conversion nodes can be found. This ensures that the average conversion delay from the source to all destinations is minimized. We refer to the problem as Broadcast Conversion Node Selection (BCNS) problem. We prove that BCNS has no polynomial-time approximation with performance ratio ρ ln n for ρ

Keywords: WDM; optical networks; wavelength conversion; broadcast routing (search for similar items in EconPapers)
Date: 2005
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DOI: 10.1007/s10878-005-6859-1

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