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Performance analysis of optical burst switching using burst delay feedback scheduling with different methods

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2 Author(s)
Kumar, R.K.P.P. ; Dept. of ECE, K.L.N. Coll. of Eng., Madurai, India ; Kumar, R.M.

Optical Burst Switching (OBS) is a promising paradigm for high speed transmission of data. In OBS, a key problem is to schedule bursts with minimum loss. Single method is not sufficient to improve performance. So, our performance model includes some feasible methods to improve OBS performance without increasing the implementation complexity. The methods include adding fiber delay lines (optical buffers), increasing offset time randomly, channel scheduling and Burst Delay Feedback scheduling (BDFS). FDLs are used only to compensate the node processing time. The random offset time approach does not require additional hardware components in the nodes. Channel scheduling in a window based manner provides better channel utilization capability when FDLs are used in the nodes. Finally Burst Delay Feedback scheduling in addition with these methods can significantly improve OBS throughput and reduce loss rate.

Published in:

Computing, Communication and Applications (ICCCA), 2012 International Conference on

Date of Conference:

22-24 Feb. 2012

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