Results 171 to 180 of about 2,847,729 (203)
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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), 2009One 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 +2 more
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Timescale analysis for wavelength-routed optical burst-switched (WR-OBS) networks
Optical Fiber Communication Conference and Exhibit, 2002The 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 +3 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, 2009Data-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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Analysis of an Edge Router for Span-Constrained Optical Burst Switched (OBS) Networks
Journal of Lightwave Technology, 2004Edge 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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Manycast Service in Optical Burst/Packet Switched (OBS/OPS) Networks (Invited Paper)
2009Recently there is an emergence of many Internet applications such as distributed interactive simulations (DIS), and high-performance scientific computations such Grid computing. These applications require huge amount of bandwidth and a viable communication paradigm to coordinate with multiple sources and destinations.
Vinod Vokkarane +1 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, 2007TCP-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 +2 more
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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, 2006We 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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Contention Resolution in Optical Burst Switching(OBS)Network : A Time Domain Approach
International Conference on Fibre Optics and Photonics, 2012An analytical model is developed to evaluate burst loss probability in optical-burst switching(OBS) network by considering the regimes of short and long FDLs. The impact of different node non-idealities on network performance is also estimated.
Manoj K. Dutta, Vinod K. Chaubey
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An intra- and inter-domain routing architecture for optical burst switched (OBS) networks
2nd International Conference on Broadband Networks, 2005., 2005We 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 +4 more
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Coordinated Multi-Layer Loss Recovery in TCP over Optical Burst-Switched (OBS) Networks
2010 IEEE International Conference on Communications, 2010It is well-known that the bufferless nature of OBS networks causes random burst loss even at low traffic loads. When TCP is used over OBS, these random losses make the TCP sender decrease its congestion window even though the network may not be congested. This results in significant TCP throughput degradation.
Rajesh R. C. Bikram +2 more
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