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Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 29524


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4216
A Noble Flow Rate Control based on Leaky Bucket Method for Multi-Media OBS Networks
Abstract:
Optical burst switching (OBS) has been proposed to realize the next generation Internet based on the wavelength division multiplexing (WDM) network technologies. In the OBS, the burst contention is one of the major problems. The deflection routing has been designed for resolving the problem. However, the deflection routing becomes difficult to prevent from the burst contentions as the network load becomes high. In this paper, we introduce a flow rate control methods to reduce burst contentions. We propose new flow rate control methods based on the leaky bucket algorithm and deflection routing, i.e. separate leaky bucket deflection method, and dynamic leaky bucket deflection method. In proposed methods, edge nodes which generate data bursts carry out the flow rate control protocols. In order to verify the effectiveness of the flow rate control in OBS networks, we show that the proposed methods improve the network utilization and reduce the burst loss probability through computer simulations.
Digital Object Identifier (DOI):

References:

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[2] J. Turner, "Terabit Burst Switching," J. High Speed Networks, vol.8, no.1, 1999, pp.3-16.
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[4] X. Wong, H. Morikawa, and T. Aoyama, "A Deflection Routing Protocol for Optical Bursts in WDM Networks," Proceedings, Fifth Optoelectronics and Communications Conference (OECC) 2000, Makuhari, Japan, pp. 94-95, July 2000.
[5] Vinod M.Vokkarance,"Burst Segmentation:An Approach For Reducing Packet Loss In Optical Burst Switched Networks" IEEE International Conference on Communications, vol.101, no.1, May 2002.
[6] F. Farahmand, V.M. Vokkarane, and J. Jue, "Practical Priority Contention Resolution for Slotted Optical Burst Switching Networks," Proceedings, IEEE/SPIE First International Workshop on Optical Burst Switching (WOBS) 2003, Dallas, TX, Octorber.2003.
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[8] Yoshihiko Mori etc,"Effective Flow rate Control for the Deflection Routing based Optical Burst Switching Networks," Asia-Pacific Conference on Communications 2006.
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