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Hop-by-Hop Priority Increasing Scheme for Improving End-to-end Throughput in Multi-Hop OBS Networks  

김병철 (경북대학교 전자전기컴퓨터학부)
조유제 (경북대학교 전자전기컴퓨터학부)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.40, no.10, 2003 , pp. 35-42 More about this Journal
Abstract
In this paper, we classified the wavelength reservation mechanisms of optical burst switching (OBS), and investigated the path length priority effect of the offset time/delayed reservation (OT/DR)-based scheme like the just-enough-time (JET) protocol. And, we showed that the fiber delay line (FDL)-based scheme can avoid the path length priority effect in multiple hop network environments. Also, we proposed a novel FDL/DR with hop-by-hop priority increasing (HPI) scheme which can improve the end-to-end throughput by increasing the priority of bursts hop-by-hop using the input FDLs at each node. The simulation results showed that the proposed FDL/DR with HPI scheme could avoid the path length priority effect and enhance the end-to-end throughput in multiple hop network environments.
Keywords
Optical Burst Switching; Wavelength Reservation; Path Length Priority Effect;
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