Fuzzy Logic Based Alternate Routing Scheme for the Minimization of Connection Set up Time and Blocking Rate in WDM Optical Network
Abdur Rahaman Sardar1, J. K. Sing2, Subir Kumar Sarkar3

1Abdur Rahaman Sardar, Department of Computer Science and Engineering,Institute of Technology & Marine Engineering, West Bengal.
2J. K. Sing, Department of Computer Science and Engineering, Jadavpur University, Kolkata West Bengal.
3J. K. Sing, Department of Computer Science and Engineering, Jadavpur University, Kolkata West Bengal.
Manuscript received on February 04, 2013. | Revised Manuscript received on February 28, 2013. | Manuscript published on March 05, 2013. | PP: 222-228 | Volume-3 Issue-1, March 2013. | Retrieval Number: A1275033113/2013©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: An alternate routing can improve the blocking performance of an optical network by providing multiple possible paths between source and destination nodes. Wavelength conversion can also improve the blocking performance of an optical network by allowing a connection to use different wavelengths along its route. But wavelength conversion scheme is not an economical proposition. We perform simultaneous study of the relationship between traditional alternate routing scheme and fuzzy logic based alternate routing scheme for comparative studies of those two schemes. Connection set up time and blocking rate reduction are the two important parameters of any optical data communication networks. These two parameters are computed in the present work. It is observed that fuzzy logic based alternate routing scheme provides better performance by reducing the connection set up time and blocking rate in optical network. The effect of the variation of number of wavelengths is also studied to see their effects on connection set up time and blocking rate.
Keywords: Alternate routing, connection set up time, blocking rate, Fuzzy Logic, Wavelength Division Multiplexing.