Results 151 to 160 of about 3,282 (199)

The potentials of optical burst switching (OBS)

Journal of Lightwave Technology, 2004
Optical burst switching (OBS) is a new paradigm that can significantly reduce the cost associated with existing approaches that adopt wavelength routing for optical transparency and OEO conversions for grooming sub-wavelength connections. We describe the origin of OBS, its state-of-the-art and where it is heading.
C. Qiao, Y. Chen, J. Staley
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Group-scheduling for optical burst switched (OBS) networks

GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489), 2004
To date, all of the proposals for burst-scheduling techniques have considered scheduling individual bursts. We introduce a new scheme called OBS group scheduling. In this approach, a burst is represented by an interval of time. The process of scheduling a number of bursts, thus, turns to be a process of fitting a set of the corresponding time intervals
Saravut Charcranoon, Tarek S. El-Bawab, Hakki C. Cankaya, Jong-Dug Shin   +3 more
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Optical burst switched (OBS) systems with segmentation-based dropping

e & i Elektrotechnik und Informationstechnik, 2008
Optical burst switching is a technique for transmitting several packets, through an optical transport network, by assembling them in large data containers, known as bursts. These bursts can be of variable length and are separated from their headers. The header, known as control packet, is sent through the network using a separate control channel, to ...
Shahzad Sarwar, Slavisa Aleksic, Khurram Aziz   +2 more
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M_OBS_SIM: A powerful Modular Optical Burst Switched (OBS) network SIMulator

Simulation Modelling Practice and Theory, 2006
Abstract This paper introduces M_OBS_SIM, a network simulator conceived to evaluate the performance of networks where the Optical Burst Switching (OBS) paradigm is implemented. Its accurate design allows to investigate the behavior of optical edge and core routers, as well as to assess the performance of the whole optical network; its modular ...
CASONI, Maurizio, Luppi E, Manzoli U, MERANI, Maria Luisa   +3 more
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Optimization scheduling for optical burst switching (OBS) networks

SPIE Proceedings, 2006
ABSTRACT Optical Burst Switching (OBS) is a promising solution for the future Internet and has attracted many attentions. In OBS network a key issue is channel scheduling. The objective of existing channel scheduling schemes is to maximize the number of bursts to be transmitted. Unfortunately it does not mean the maximum channel utilization.
Hongyun Zheng, Changjia Chen, Yongxiang Zhao   +2 more
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Group-Scheduling for Multi-Service Optical Burst Switching (OBS) Networks

Photonic Network Communications, 2006
We propose a new burst scheduling mechanism for Optical Burst-Switched (OBS) networks. The new approach is made possible by gathering data bursts into groups and performing the scheduling decision for each group collectively. In OBS group-scheduling, bursts will not be considered for scheduling until a pre-defined time period elapses, during which the ...
Saravut Charcranoon, Tarek S. El-Bawab, Jong-Dug Shin, Hakki C. Cankaya   +3 more
openaire   +1 more source

QoS-Based Manycasting Over Optical Burst-Switched (OBS) Networks

IEEE/ACM Transactions on Networking, 2010
Many distributed applications require a group of destinations to be coordinated with a single source. Multicasting is a communication paradigm to implement these distributed applications. However in multicasting, if at least one of the members in the group cannot satisfy the service requirement of the application, the multicast request is said to be ...
Balagangadhar G. Bathula, Vinod Vokkarane   +1 more
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TCP Over Optical Burst Switching (OBS): To Split or Not To Split?

2008 Proceedings of 17th International Conference on Computer Communications and Networks, 2008
TCP-based applications account for a majority of data traffic in the Internet; thus understanding and improving the performance of TCP over OBS network is critical. In this paper, we identify the ill-effects of implementing TCP over a hybrid network (IP-access and OBS-core).
Deepak Padmanabhan 0002, Rajesh R. C. Bikram, Vinod Vokkarane   +2 more
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Architecture and Performance of A Next-Generation Optical Burst Switch (OBS)

2006 3rd International Conference on Broadband Communications, Networks and Systems, 2006
Optical burst switching (OBS) is a promising technique for next-generation optical switching networks which attempts to address the problem of efficiently allocating resources for bursty traffic. In traditional OBS, an entire burst is discarded when all output wavelengths are engaged at the arrival instant of the burst.
Muhammad T. Anan, Ghulam M. Chaudhry, Driss Benhaddou   +2 more
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Performance evaluation of TCP over optical burst-switched (OBS) WDM networks

IEEE International Conference on Communications, 2003. ICC '03., 2004
This paper studies the performance of TCP transport protocol over an optical burst-switched (OBS) wavelength division multiplexed (WDM) wide-area network. Typically, an OBS network consists of optical core routers and electronic edge routers connected by WDM links.
Sunil Gowda, Ramakrishna Shenai, Krishna M. Sivalingam, Hakki C. Cankaya   +3 more
openaire   +1 more source