2007
DOI: 10.1016/j.osn.2007.08.002
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Wavelength reassignment algorithms for all-optical WDM backbone networks

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Cited by 16 publications
(11 citation statements)
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“…A detailed survey of rerouting techniques can be found in [9]. Rerouting schemes proposed in [10]- [12] are used as an approach to alleviate the effects of wavelength continuity constraint, when the network nodes are not equipped with wavelength conversion capability. Among the proposed schemes, move-to-vacant wavelength-retuning (MTV-WR) has a very short disruption period at the cost of high number of reconfiguration of existing lightpaths per new connection request.…”
Section: Related Workmentioning
confidence: 99%
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“…A detailed survey of rerouting techniques can be found in [9]. Rerouting schemes proposed in [10]- [12] are used as an approach to alleviate the effects of wavelength continuity constraint, when the network nodes are not equipped with wavelength conversion capability. Among the proposed schemes, move-to-vacant wavelength-retuning (MTV-WR) has a very short disruption period at the cost of high number of reconfiguration of existing lightpaths per new connection request.…”
Section: Related Workmentioning
confidence: 99%
“…However, this scheme is modified in [13] which execute only one existing lightpath at a time for wavelength reassignment, to accommodate the new connection request. Moreover, a modified version of minimum overlapping to least congested (MOLC) [12] wavelength reassignment has been proposed in [14], which instead of reassigning new wavelength, reroute existing lightpaths to new disjoint paths. In contrast to the previous work [12]- [15], in this study we combine the rerouting concept along with set-up delay tolerance [1]- [3] which is a new approach to reduce blocking for dynamic WDM networks.…”
Section: Related Workmentioning
confidence: 99%
“…An interesting wavelength reassignment policy was presented in [9] also addressing the connection blocking in wavelength-routed WDM networks.…”
Section: Minimum Overlap Wavelength To Least Congested (Molc)mentioning
confidence: 99%
“…The proposed model starts by trying to establish a lightpath using the basic RWA algorithm, and in case of blocking, MOLC is activated to accommodate the connection request. The network manager reassigns the lightpaths from the minimum overlapping wavelength to the least congested wavelength and once the wavelength for the required request is released, the connection is established [9]. Simulation results show that this proposal can highly improve the blocking due to the wavelength continuity constraint and achieve the wavelength conversion performance.…”
Section: Minimum Overlap Wavelength To Least Congested (Molc)mentioning
confidence: 99%
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