Results 161 to 170 of about 3,282 (199)

Performance Analysis of Scheduling Algorithms in Optical Burst Switching (OBS) Networks

Second International Conference on Innovative Computing, Informatio and Control (ICICIC 2007), 2007
OBS is an efficient paradigm that transporting traffic directly over optical links, and has received considerable attention. It seems a challenge to analyze scheduling problem. In this paper we model and analyze channel utilization performance of IAUC, OBS-GS and MWIS-OS algorithms.
Hongyun Zheng, Changjia Chen
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BAIMD: A Responsive Rate Control for TCP over Optical Burst Switched (OBS) Networks

2006 IEEE International Conference on Communications, 2006
Additive Increase Multiplicative Decrease (AIMD) window adjustment mechanism has been embedded in TCP in order to regulate the transmission rate in modern communication networks. In recent years, the AIMD (1,0.5) traffic regulation mechanism along with possibly additional enhancements, such as false timeout detection and explicit notification, has been
Basem Shihada, Pin-Han Ho, Fen Hou, Xiaohong Jiang 0001, Susumu Horiguchi, Minyi Guo, Hussein T. Mouftah   +6 more
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Timescale analysis for wavelength-routed optical burst-switched (WR-OBS) networks

Optical Fiber Communication Conference and Exhibit, 2002
The relationship of three timing parameters in the WR-OBS network architecture has been identified and investigated, to quantify the limits on the operation of a dynamic network. An adaptive burst assembler at the network edge provides an accurate estimation of the maximum edge delay whilst preventing buffer overflow, depending only on the mean and ...
M. Duser, I. de Miguel, P. Bayvel, D. Wischik   +3 more
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Impact of TCP synchronization on capacity dimensioning of Optical Burst Switched (OBS) links

2012 17th European Conference on Networks and Optical Communications, 2012
We study the effect of TCP synchronization on Optical Burst Switched (OBS) networks and its impact on capacity dimensioning. The synchronization of TCP flows appears when a burst with segments from different TCP flows is discarded, making that all TCP flows reduce their transmission rate at the same time, leading to inefficient bandwidth sharing.
Oscar Gonzalez de Dios, Ignacio de Miguel, Ramon J. Duran, Juan Carlos Aguado, Noemi Merayo, Patricia Fernáandez   +5 more
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Unfairness in TCP performance over lossy optical burst-switched (OBS) networks

2009 IEEE 3rd International Symposium on Advanced Networks and Telecommunication Systems (ANTS), 2009
One of TCP's primary objectives is to provide fairness to all flows competing for resources in a network. Since the popular flavors of TCP were designed to work with electronic packet-switched networks, they behave differently when used over optical burst-switched networks (OBS). In OBS, burst loss occurs due to random contention of data bursts.
Julie Sullivan, Paul Ramos, Vinod M. Vokkarane   +2 more
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Analysis of an Edge Router for Span-Constrained Optical Burst Switched (OBS) Networks

Journal of Lightwave Technology, 2004
Edge routers are one of the key elements in an optical burst switched (OBS) network. Packets are assembled into bursts and then disassembled after being switched through the network. In a span-constrained OBS network, the edge router latency dominates propagation delay through the network.
R. Rajaduray, S. Ovadia, D.J. Blumenthal
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An intra- and inter-domain routing architecture for optical burst switched (OBS) networks

2nd International Conference on Broadband Networks, 2005., 2005
We describe an intra- and inter-domain routing architecture for just-in-time (JIT) optical burst switched (OBS) networks. The architecture addresses the problem of routing optical signals of varying types across an all-optical burst-switched backbone network while maintaining the optical signal quality required by each application.
I. Baldine, P. Mehrotra, G. Rouskas, A. Bragg, D. Stevenson   +4 more
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TCP-aware Load-Balanced Routing in Optical Burst-Switched (OBS) Networks

OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007
TCP-over-OBS is a promising transport paradigm to support next-generation-Internet. Load-balanced OBS improves loss- performance. We identify the ill-effects of load-balancing on TCP-performance due to false-time-outs and false-triple-duplicates. We propose source-ordering to improve TCP-throughput by three-four times.
Bharat Komatireddy, Deepak Chandran, Vinod M. Vokkarane   +2 more
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Dynamic Load-Balanced Manycasting Over Optical Burst-Switched (OBS) Networks

Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009
Data-loss in optical-burst-switched networks primarily occur due to contention of bursts at core nodes. We propose two dynamic congestion-based load-balanced manycast-routing techniques, namely load-balanced SPT and load-balanced DM that significantly improve blocking-probability and end-to-end delay.
Rajesh R.C. Bikram, Vinod M. Vokkarane
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Information sharing based optimal routing for optical burst switching (OBS) network

2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference, 2006
We demonstrate the optimal routing scheme to avoid burst contention by sharing the reservation information within neighbor nodes in the OBS network. Our scheme can notably enhance the survivability performance with lower burst contention probability.
null Donghui Gao, null Hanyi Zhang
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