Traffic based Virtual Topology Design in a Small WDM Network with Comparative Analysis of Wavelength Dependent Cost of Established Lightpaths
Full Text(PDF, 3000) PP.
| Author(s) |
|Ms. Harmandar Kaur|
| KEYWORDS |
WDM, virtual topology, lightpaths, virtual degree constraint, virtual topology
In order to establish a virtual topology for a given physical topology, in a small WDM network i.e. with four to six nodes, we are considering traffic as the constraint. Another important factor is the virtual degree constraint, which is equal to the number of transmitters and receivers supported by a node in the network. The virtual topologies are designed using decreasing traffic sequence virtual topology design (DTS-VTD) algorithm and traffic independent virtual topology design (TI-VTD) algorithms, with varying virtual degree value. In the designed virtual topologies, the hops occur without violating the wavelength conflicting constraint. The topologies so designed are compared on the basis of their network traffic load satisfying capability and finally wavelength dependant cost effectiveness of the designed topologies is studied using the joint wavelength route selection algorithm in conjunction with the DTS-VTD algorithm and TI-VTD algorithm
. Subruta Bunerjee, Jay Yoo, “Minimizing Maximum Logical Link Congestion in Packet Switched Optical Networks,” IEEE,pp.1298-1302,1997.
. Biswanath Mukherjee, Dhritiman Banerjee, S. Ramamurthy,and Amarnath Mukherjee, “Some Principles for Designing a Wide-Area WDM Optical Network,” IEEE/ACM Transactions On Networking, vol. 4, no. 5, pp.684-696, October 1996 .
. S.R. Murthy, M.Guruswamy, “WDM Optical Networks: Concepts, Design and Algorithms,” Prentice Hall of India Pvt. Ltd.,New Delhi,2002.
. Biswanath Mukherjee, “WDM-based Local Lightwave Networks Part I: Single-Hop Systems,”IEEE Network,pp.12-27,May 1992.
. Dhritiman Banerjee, Biswanath Mukherjee “Wavelength-Routed Optical Networks: Linear Formulation, Resource Budgeting Tradeoffs, and a Reconfiguration Study,”IEEE,pp.-276,1997
. R. M. Krishnaswamy and K. N. Sivarajan, “Design of Logical Topologies: A Linear Formulation for Wavelength-Routed Optical Networks with No Wavelength Changers"", IEEE/ACM Trans. Networking, vol. 9, no. 2, pp. 186-198, Apr 2001.
. R. Ramaswami and K. N. Sivarajan, “Optimal Routing and Wavelength Assignment in All-Optical Networks"", Proc. IEEE Infocom'94, pp. 970-979, Toronto, Canada, Jun 1994.
. S. Banerjee and C. Chen, “Design of Wavelength-Routed Optical Networks for Circuit Switched Traffic"", Proc. IEEE Globecom'96, pp. 306-310, London, UK, Nov 1996.
. J. Burgin and D. Dorman, “Broadband ISDN Resource Management: The Role of Virtual Paths"", IEEE Communications Magazine, vol. 29, no. 9, pp. 44-48, Sep 1991.
. O. Komolafe, D. Hale and D. Cotter, “Impact of Graph Theoretic Network Parameters on the Design of Regular Virtual Topologies for Optical Packet Switching"", IEEE ICC'02, pp. 2827-2831, New York, Apr 2002.
. Yu Yiding, “Virtual Topology Design for Optical WDM Networks ,” ME Thesis, National University of Singapore,2003