New traffic grooming approaches in optical networks under restricted shared protection |
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Authors: | P P Sahu |
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Affiliation: | (1) Department of Electronics and Communication Engineering, Tezpur University, Tezpur, 784028, Assam, India |
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Abstract: | In this paper, two traffic grooming approaches based on alternate path routing are proposed to accommodate a greater number
of connections in optical networks. In the first approach (called as Source_SWG), the connections of same source and different
destinations along a path are groomed in a wavelength channel, whereas in the second approach (called as Des_SWG), the connections
of the same destination and different sources along a path are groomed in a wavelength channel. These approaches are compared
with existing heuristic traffic grooming algorithms based on fixed routing. It is found that both the approaches provide less
wavelengths than the existing heuristic traffic grooming algorithms for establishment of all the connections present in the
network. The comparative studies of these approaches are also made under restricted shared protection. It is seen that in
case of Source_SWG, the number of wavelengths required for establishment of all the connections present in the network is
less than that for Des_SWG.
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Keywords: | Shared protection Setup time Blocking probability Traffic grooming |
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