DocumentCode :
3263928
Title :
Grooming of Survivable Multicast Sessions Against Single Link Failures in Sparse Splitting WDM Mesh Networks
Author :
Sreenath, N. ; Palanisamy, Balaji ; Nadarajan, S.R.
Author_Institution :
Pondicherry Eng. Coll., Pondicherry
fYear :
2006
fDate :
20-23 Dec. 2006
Firstpage :
413
Lastpage :
417
Abstract :
Cost effective grooming of several sessions with fractional wavelength bandwidth onto a single wavelength has become prominent in WDM networks. We, in this paper, address the problem of survivable routing and wavelength assignment of multicast sessions with sub-wavelength traffic demands in sparse splitting WDM networks. We assume a sparse splitting node architecture in which only a few nodes in the network are split-capable. A node with splitting capability can forward an incoming message to more than one outgoing link in the optical form. The multicast capability at the non-split nodes can be achieved by converting the optical signal into electronic form and transmitting in optical form onto all the required outgoing links. However, the traffic duplication at the electronic level is more expensive than the optical level in terms of the delay incurred due to the optical-electronic-optical (O/E/O) conversion. Since the multicast traffic grooming problem is computationally intractable, we adopt a heuristic approach called VSGroom which tries to minimize the resources required for electronic copying. We extend the notion of link disjoint, arc disjoint and path disjoint protection methodologies to groomed multicast sessions in order to protect them from single link failures. The performance of the various protection algorithms is studied and compared through extensive simulation experiments.
Keywords :
multicast communication; optical fibre networks; telecommunication network reliability; telecommunication network routing; telecommunication traffic; wavelength assignment; wavelength division multiplexing; VSGroom; WDM mesh networks; arc disjoint; electronic copying; link disjoint; optical signal; optical-electronic-optical conversion; outgoing link; path disjoint protection; single link failures; sparse splitting; splitting node architecture; sub-wavelength traffic demands; survivable multicast sessions; survivable routing; wavelength assignment; Bandwidth; Costs; Delay; Mesh networks; Protection; Telecommunication traffic; WDM networks; Wavelength assignment; Wavelength division multiplexing; Wavelength routing; Multicast routing and wavelength assignment; Optical WDM mesh networks; Traffic grooming; optical splitter;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advanced Computing and Communications, 2006. ADCOM 2006. International Conference on
Conference_Location :
Surathkal
Print_ISBN :
1-4244-0716-8
Electronic_ISBN :
1-4244-0716-8
Type :
conf
DOI :
10.1109/ADCOM.2006.4289927
Filename :
4289927
Link To Document :
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