Emission and Discard Priority Scheme for Optimized Deflection Routing in OBS Networks

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Executive Summary

Resolving contention in an efficient and cost-effective manner is a key issue in Optical Burst Switched (OBS) networks. Although deflection routing has been identified as a cost-effective solution, its viability has been questioned. The authors propose an Emission and Discard Priority (EDP) scheme to alleviate the shortcomings of deflection routing. The objective of this EDP scheme is to reduce the number of late packet arrivals due to burst deflections and to increase the efficiency of deflection routing with selective burst deflections. Through simulation, they compare the performance of deflection routing using the EDP scheme with a basic deflection routing scheme and a no-deflection scheme.

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