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Regenerator Placement Strategies for Translucent OBS Networks
Journal of Lightwave Technology, 2011 Most research works in optical burst switching (OBS) networks do not take into account the impact of physical layer impairments (PLIs) either by considering fully transparent (i.e., with optical 3R regeneration) or opaque (i.e., with electrical 3R regeneration) networks.
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2012 14th International Conference on Transparent Optical Networks (ICTON), 2012
In this paper, we evaluate, for certain scenarios, the achievable level of utilization of OBS networks while maintaining acceptable blocking probability. We consider bufferless optical burst switching (OBS) networks with deflection routing, in which channel reservation is used to avoid instability, and with realistically high number of channels per ...
Jianan Zhang +4 more
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In this paper, we evaluate, for certain scenarios, the achievable level of utilization of OBS networks while maintaining acceptable blocking probability. We consider bufferless optical burst switching (OBS) networks with deflection routing, in which channel reservation is used to avoid instability, and with realistically high number of channels per ...
Jianan Zhang +4 more
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Dynamic service differentiation in OBS networks
2007 Fourth International Conference on Broadband Communications, Networks and Systems (BROADNETS '07), 2007In this paper we propose an edge-to-edge closed-loop scheme to provide Quality-of-Service (QoS) in Optical Burst Switching (OBS) networks. Performance parameters for each burst flow are exchanged by a feedback message called Service Control Message (SCM) which is processed only at the edge/ingress nodes.
A. Pantaleo +4 more
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Planning OBS networks with QoS constraints
Photonic Network Communications, 2007The design of OBS networks that guarantee QoS provisioning for different classes of traffic is a major topic under current research. In this work we formulate a unified framework for studying QoS in OBS networks with a GMPLS-based control plane. We use this framework in order to investigate two problems. First, the configuration of the parameters of an
De Vega Rodrigo, Miguel +1 more
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Routing Scheme for OBS Networks
Journal of Optical Communications and Networking, 2012We observe that routing, in optical burst switching (OBS) networks, is basically motivated by reducing contention-induced loss and not by the objective of global resource optimization. Here, we propose a routing scheme for OBS networks that minimizes the burst loss probability of individual bursts and at the same time achieves the routing goal of ...
Subhrabrata Choudhury +2 more
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2009
The TCP is one of the important protocols of the IP suite. It provides reliable, in-order delivery of a stream of bytes from a program on one computer to a program on another computer thus making it suitable for applications like file transfer and e-mail. Many studies in the Internet have shown that about 90% of the applications in the Internet use the
T. Venkatesh, C. Siva Ram Murthy
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The TCP is one of the important protocols of the IP suite. It provides reliable, in-order delivery of a stream of bytes from a program on one computer to a program on another computer thus making it suitable for applications like file transfer and e-mail. Many studies in the Internet have shown that about 90% of the applications in the Internet use the
T. Venkatesh, C. Siva Ram Murthy
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Proportional QoS over OBS networks
GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270), 2002Optical burst switching (OBS) is considered as an efficient switching technique for building the next generation optical Internet. An offset-time based scheme has recently been proposed in order to provide quality-of-service (QoS) in OBS networks. Unfortunately, the proposed service differentiation has several problems.
null Yang Chen, M. Hamdi, D.H.K. Tsang
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OBS-based transparent optical network
SPIE Proceedings, 2006With fiber being cheaper and cheaper, the core fiber bandwidth utilization is not the key factor of the network, how to use the huge bandwidth flexibly and efficiently is one of the hot topics of optical networks. Optical burst switching (OBS) is the best choice to statistically use the optical resources, OBS based transparent optical network ...
Zhengbin Li +4 more
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Virtual Topology Design for OBS Optical Networks
2007 IEEE International Conference on Communications, 2007Burst loss and delay are two main issues in optical burst switching (OBS) networks. In OBS, if the hop-count between the source-destination node pair can be reduced, both the control packet and the corresponding data burst will suffer less risk of contention, and the delay caused by offset time will be reduced as well.
Wu, B, Yeung, KL
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