A Graph Technique to Determine the Minimum Number of Wavelength for some WDM Optical Networks

Authors(2) :-B. Amutha, R.Nithya

Wavelength division multiplexing (WDM) is a promising technique to utilize the enormous bandwidth of the optical fibre (~50 terabits per second) into multiple communication channels with bandwidths (~10 gigabits per second) compatible with the electronic speed of the end users. In WDM network, it is possible to route data to their respective destinations based on their wavelengths. The use of wavelength to route data is referred to as wavelength routing and a network which employs this technique is known as a wavelength routed network. When network does not employ any intermediate O/E conversion between access stations, it is called as an all-optical wavelength routed network. In order to send data from one access station to another station, one needs to establish a connection in the optical layer similar to the case in a circuit-switched network. This can be realized by determining a path in the network between the two nodes and allocating a free wavelength on all of the links on the path. Such an all optical path is referred to as a light path and may span multiple fiber links without any intermediate electronic processing. The entire bandwidth available on this light path is allocated to the connection during its holding time during which the corresponding wavelength cannot be allocated to any other connection. This requirement is referred to as wavelength continuity constraint.

Authors and Affiliations

B. Amutha
Assistant Professor, Department of Mathematics, Prist University, Thanjavur, Tamilnadu, India
M. Phil Scholar , Department of Mathematics, Prist University, Thanjavur, Tamilnadu, India

Wavelength Division Multiplexing, Circuit-Switched Network, Bruijn Networks, Shuffle-Exchange

  1. Agarwal A., Bar-Noy A., Coppersmith D., Ramaswami R., Schieber B, and Sudan M. (1994), ‘Efficient routing and scheduling algorithms for optical networks’, Proc. OfACM-SIAM Symposium on Discrete Algoriiims, pp.412-423.
  2. Al-Fuqaha A., G. Chaudhry, C. Beard, M. Labrador, M. Guizani and I. Habib, Link-state update policies for all-optical DWDM transport networks, ICC 2004 - IEEE International Conference on Communications, vol. 27, no. 1, June 2004, pp. 1831 - 1835 .

Publication Details

Published in : Volume 3 | Issue 5 | May-June 2018
Date of Publication : 2018-06-30
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 957-961
Manuscript Number : CSEIT1835228
Publisher : Technoscience Academy

ISSN : 2456-3307

Cite This Article :

B. Amutha, R.Nithya, "A Graph Technique to Determine the Minimum Number of Wavelength for some WDM Optical Networks", International Journal of Scientific Research in Computer Science, Engineering and Information Technology (IJSRCSEIT), ISSN : 2456-3307, Volume 3, Issue 5, pp.957-961, May-June-2018.
Journal URL : http://ijsrcseit.com/CSEIT1835228

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