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GLOBECOM
2010
IEEE
10 years 11 months ago
Approximation Ratios of Multicast Light-Trees in WDM Networks
Abstract--All-optical multicast routing (AOMR) is implemented by the concept of light-tree in WDM networks. The costoptimal multicast light-tree is NP-hard to compute, especially w...
Fen Zhou, Miklós Molnár, Bernard Cou...
NETWORKING
2010
11 years 2 months ago
Cost Bounds of Multicast Light-Trees in WDM Networks
The construction of light-trees is one principal subproblem for multicast routing in sparse splitting Wavelength Division Multiplexing (WDM) networks. Due to the light splitting co...
Fen Zhou, Miklós Molnár, Bernard Cou...
INFOCOM
2003
IEEE
11 years 6 months ago
Design of Light-Tree Based Logical Topologies for Multicast Streams in Wavelength Routed Optical Networks
—In this paper, we formulate an optimization problem for the design of light-tree based logical topology in Wavelength Division Multiplexing (WDM) networks. The problem is compri...
Wanjiun Liao
CORR
2010
Springer
178views Education» more  CORR 2010»
10 years 10 months ago
Is Light-Tree Structure Optimal for Multicast Routing in Sparse Light Splitting WDM Networks?
To minimize the number of wavelengths required by a multicast session in sparse light splitting Wavelength Division Multiplexing (WDM) networks, a light-hierarchy structure, which ...
Fen Zhou, Miklós Molnár, Bernard Cou...
GLOBECOM
2008
IEEE
11 years 8 months ago
Power-Cost-Effective Node Architecture for Light-Tree Routing in WDM Networks
—We present a novel cost-effective multicast capable optical cross connect (MC-OXC) node architecture which improves efficiency of optical power by constraining splitting to only...
G. M. Fernandez, David Larrabeiti, C. Vazquez, P. ...
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