The Experts below are selected from a list of 297 Experts worldwide ranked by ideXlab platform
S. J.ben Yoo - One of the best experts on this subject based on the ideXlab platform.
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Nonlinear Optical Signal Processing in Optical Packet Switching Systems
IEEE Journal of Selected Topics in Quantum Electronics, 2012Co-Authors: Junya Kurumida, S. J.ben YooAbstract:This paper discusses nonlinear optical signal processing employed in optical Packet Switching systems. Nonlinear optical signal processing provides optical label (header) recognition, optical Switching, wavelength conversion, and time buffering with typically higher capacity, lower latency, and lower power consumption than electronic counterparts. In order to provide diverse signal processing functions, large-scale integration of nonlinear optical signal processing devices is essential. We discuss possible future directions in optical Packet Switching involving nonlinear optical signal processing of optical Packets with advanced data and label modulation formats.
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Energy efficiency in the future internet: The role of optical Packet Switching and optical-label Switching
IEEE Journal on Selected Topics in Quantum Electronics, 2011Co-Authors: S. J.ben YooAbstract:This paper reviews the energy efficiency of optical-Packet-Switching (OPS) systems in comparison with electronic Packet Switching and hybrid Packet Switching in the context of future networks. The paper will first discuss the energy efficiency metrics that should include considerations for life-cycle analysis, applications, and network-wide goodput. The state-of-the-art electronic Packet Switching router is currently energy-limited in scalability as it is difficult to implement a router with more than 1 MW power consumption. The OPS router that imitates electronic router's store-and-forward schemes is expected to suffer poor energy efficiency due to the complexity in the high-speed control plane necessary to control many optical buffer stages. The hybrid optical router achieves easier buffer management but its energy efficiency is still limited by the store-and-forward approach. The OPS router based on all-optical contention resolution without relying on store-and-forward method can keep the control plane very simple and achieve very high energy efficiency. Network-wide performance and energy efficiency in the context of generalized multiprotocol label Switching (GMPLS)- and multiprotocol label Switching (MPLS)-based networking are also discussed.
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Optical burst and Packet Switching
Optical Fiber Telecommunications V1B, 2008Co-Authors: S. J.ben Yoo, S. J. Ben YooAbstract:This chapter discusses optical burst Switching (OBS) and optical Packet Switching (OPS) technologies and examines their roles in future optical networks, covering the roles of optical circuit, burst, and Packet Switching systems in optical networks, as well as their respective benefits and trade-offs. OPS and OBS technologies seek powerful combinations of the vast optical bandwidth and the agile subwavelength granularity by Switching and routing Packets and bursts directly in the optical layer. OBS offers best-effort burst transport and Switching with one-way signaling so that high network utilization for bursty traffic can be achieved. OPS requires fast Switching speeds (in the nanosecond range) to be effective. Recent advances in optical header (label) processing and optical Switching led to asynchronous and variable-length OPS with contention resolution in wavelength, time, and space domains at nanosecond Switching speeds. Unlike electronic Packet Switching routers, optical routers can exploit the wavelength domain to greatly reduce the buffer requirement and to discard store-and-buffer architecture involving Packet processing in the data plane. A description is given of the networking architecture/protocols, systems, and technologies pertaining to optical burst and Packet Switching. Optical label Switching technology is introduced, which provides a unified platform for interoperating optical circuit, burst, and Packet Switching techniques. In addition to the reduced complexity and power requirements in optical label Switching (OLS) routers resulting from significantly reduced high-speed electronic processing in the data plane, further advances in integrated optoelectronic technologies may eventually allow chip-scale integration of OLS routers for the agile, robust, and high-performance Internet in the future. © 2008 Elsevier Inc. All rights reserved.
Piero Gambini - One of the best experts on this subject based on the ideXlab platform.
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Transparent optical Packet Switching: Network architecture and demonstrators in the KEOPS project
IEEE Journal on Selected Areas in Communications, 1998Co-Authors: Piero Gambini, S L Danielsen, B Bostica, Christian Guillemot, Giovanni Corazza, Franco Callegati, Monique Renaud, Ivan Andonovic, Philippe GraveyAbstract:This paper reviews the work carried out in the ACTS KEOPS (Keys to Optical Packet Switching) project, describing the results obtained to date. The main objective of the project is the definition, development, and assessment of optical Packet Switching and routing networks, capable of providing transparency to the payload bit rate, using optical Packets of fixed duration and low bit rate headers in order to enable easier processing at the network/node interfaces. The feasibility of the KEOPS concept is assessed by modeling, laboratory experiments, and testbed implementation of optical Packet Switching nodes and network/node interfacing blocks, including a fully equipped demonstrator. The demonstration relies on advanced optoelectronic components, developed within the project, which are described
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Transparent optical Packet Switching: The European ACTS KEOPS project approach
Journal of Lightwave Technology, 1998Co-Authors: Christian Guillemot, Piero Gambini, Christopher Janz, Raimond Bauknecht, Marco Burzio, B Bostica, Franco Callegati, Monique Renaud, Ivan Andonovic, Maurizio CasoniAbstract:This paper reviews the work carried out under the European ACTS KEOPS (KEys to Optical Packet Switching) project, centering on the definition, development and assessment of optical Packet Switching and routing networks capable of providing transparency to the payload bit rate. The adopted approach uses optical Packets of fixed duration with low bit rate headers to facilitate processing at the network/node interfaces. The paper concentrates on the networking concepts developed in the KEOPS project through a description of the implementation issues pertinent to optical Packet Switching nodes and network/node interfacing blocks, and consideration of the network functionalities provided within the optical Packet layer. The implementation, from necessity, relies on advanced optoelectronic components specifically developed within the project, which are also briefly described
Franco Callegati - One of the best experts on this subject based on the ideXlab platform.
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A framework for evaluating the cost of optical Packet Switching nodes
2009 International Conference on Photonics in Switching, 2009Co-Authors: Franco Callegati, Walter CerroniAbstract:A model to evaluate the cost of an optical Packet Switching fabric according to different points of view is proposed here, as a basis to provide comprehensive comparisons between different Switching architecture.
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Transparent optical Packet Switching: Network architecture and demonstrators in the KEOPS project
IEEE Journal on Selected Areas in Communications, 1998Co-Authors: Piero Gambini, S L Danielsen, B Bostica, Christian Guillemot, Giovanni Corazza, Franco Callegati, Monique Renaud, Ivan Andonovic, Philippe GraveyAbstract:This paper reviews the work carried out in the ACTS KEOPS (Keys to Optical Packet Switching) project, describing the results obtained to date. The main objective of the project is the definition, development, and assessment of optical Packet Switching and routing networks, capable of providing transparency to the payload bit rate, using optical Packets of fixed duration and low bit rate headers in order to enable easier processing at the network/node interfaces. The feasibility of the KEOPS concept is assessed by modeling, laboratory experiments, and testbed implementation of optical Packet Switching nodes and network/node interfacing blocks, including a fully equipped demonstrator. The demonstration relies on advanced optoelectronic components, developed within the project, which are described
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Transparent optical Packet Switching: The European ACTS KEOPS project approach
Journal of Lightwave Technology, 1998Co-Authors: Christian Guillemot, Piero Gambini, Christopher Janz, Raimond Bauknecht, Marco Burzio, B Bostica, Franco Callegati, Monique Renaud, Ivan Andonovic, Maurizio CasoniAbstract:This paper reviews the work carried out under the European ACTS KEOPS (KEys to Optical Packet Switching) project, centering on the definition, development and assessment of optical Packet Switching and routing networks capable of providing transparency to the payload bit rate. The adopted approach uses optical Packets of fixed duration with low bit rate headers to facilitate processing at the network/node interfaces. The paper concentrates on the networking concepts developed in the KEOPS project through a description of the implementation issues pertinent to optical Packet Switching nodes and network/node interfacing blocks, and consideration of the network functionalities provided within the optical Packet layer. The implementation, from necessity, relies on advanced optoelectronic components specifically developed within the project, which are also briefly described
Christian Guillemot - One of the best experts on this subject based on the ideXlab platform.
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Transparent optical Packet Switching: Network architecture and demonstrators in the KEOPS project
IEEE Journal on Selected Areas in Communications, 1998Co-Authors: Piero Gambini, S L Danielsen, B Bostica, Christian Guillemot, Giovanni Corazza, Franco Callegati, Monique Renaud, Ivan Andonovic, Philippe GraveyAbstract:This paper reviews the work carried out in the ACTS KEOPS (Keys to Optical Packet Switching) project, describing the results obtained to date. The main objective of the project is the definition, development, and assessment of optical Packet Switching and routing networks, capable of providing transparency to the payload bit rate, using optical Packets of fixed duration and low bit rate headers in order to enable easier processing at the network/node interfaces. The feasibility of the KEOPS concept is assessed by modeling, laboratory experiments, and testbed implementation of optical Packet Switching nodes and network/node interfacing blocks, including a fully equipped demonstrator. The demonstration relies on advanced optoelectronic components, developed within the project, which are described
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Transparent optical Packet Switching: The European ACTS KEOPS project approach
Journal of Lightwave Technology, 1998Co-Authors: Christian Guillemot, Piero Gambini, Christopher Janz, Raimond Bauknecht, Marco Burzio, B Bostica, Franco Callegati, Monique Renaud, Ivan Andonovic, Maurizio CasoniAbstract:This paper reviews the work carried out under the European ACTS KEOPS (KEys to Optical Packet Switching) project, centering on the definition, development and assessment of optical Packet Switching and routing networks capable of providing transparency to the payload bit rate. The adopted approach uses optical Packets of fixed duration with low bit rate headers to facilitate processing at the network/node interfaces. The paper concentrates on the networking concepts developed in the KEOPS project through a description of the implementation issues pertinent to optical Packet Switching nodes and network/node interfacing blocks, and consideration of the network functionalities provided within the optical Packet layer. The implementation, from necessity, relies on advanced optoelectronic components specifically developed within the project, which are also briefly described
Ivan Andonovic - One of the best experts on this subject based on the ideXlab platform.
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Approaches to optical internet Packet Switching
IEEE Communications Magazine, 2000Co-Authors: David K. Hunter, Ivan AndonovicAbstract:Wavelength-division multiplexing is currently being deployed in\ntelecommunications networks in order to satisfy the increased demand for\ncapacity brought about by the explosion in Internet use. The most widely\naccepted network evolution prediction is via an extension of these\ninitial predominantly point-to-point deployments, with limited system\nfunctionalities, into highly interconnected networks supporting\ncircuit-switched paths. While current applications of WDM focus on\nrelatively static usage of individual wavelength channels, optical\nSwitching technologies enable fast dynamic allocation of WDM channels.\nThe challenge involves combining the advantages of these relatively\ncoarse-grained WDM techniques with emerging optical Switching\ncapabilities to yield a high-throughput optical platform directly\nunderpinning next-generation networks. One alternative longer-term\nstrategy for network evolution employs optical Packet Switching,\nproviding greater flexibility, functionality, and granularity. This\narticle reviews progress on the definition of optical Packet Switching\nand routing networks capable of providing end-to-end optical paths\nand/or connectionless transport. To date the approaches proposed\npredominantly use fixed-duration optical Packets with lower-bit-rate\nheaders to facilitate processing at the network-node interfaces. Thus,\nthe major advances toward the goal of developing an extensive optical\nPacket-switched layer employing fixed-length Packets are summarized, but\ninitial concepts on the support of variable-length IP-like optical\nPackets are also introduced. Particular strategies implementing the\ncrucial optical buffering function at the Switching nodes are described,\nmotivated by the network functionalities required within the optical\nPacket layer
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Transparent optical Packet Switching: Network architecture and demonstrators in the KEOPS project
IEEE Journal on Selected Areas in Communications, 1998Co-Authors: Piero Gambini, S L Danielsen, B Bostica, Christian Guillemot, Giovanni Corazza, Franco Callegati, Monique Renaud, Ivan Andonovic, Philippe GraveyAbstract:This paper reviews the work carried out in the ACTS KEOPS (Keys to Optical Packet Switching) project, describing the results obtained to date. The main objective of the project is the definition, development, and assessment of optical Packet Switching and routing networks, capable of providing transparency to the payload bit rate, using optical Packets of fixed duration and low bit rate headers in order to enable easier processing at the network/node interfaces. The feasibility of the KEOPS concept is assessed by modeling, laboratory experiments, and testbed implementation of optical Packet Switching nodes and network/node interfacing blocks, including a fully equipped demonstrator. The demonstration relies on advanced optoelectronic components, developed within the project, which are described
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Transparent optical Packet Switching: The European ACTS KEOPS project approach
Journal of Lightwave Technology, 1998Co-Authors: Christian Guillemot, Piero Gambini, Christopher Janz, Raimond Bauknecht, Marco Burzio, B Bostica, Franco Callegati, Monique Renaud, Ivan Andonovic, Maurizio CasoniAbstract:This paper reviews the work carried out under the European ACTS KEOPS (KEys to Optical Packet Switching) project, centering on the definition, development and assessment of optical Packet Switching and routing networks capable of providing transparency to the payload bit rate. The adopted approach uses optical Packets of fixed duration with low bit rate headers to facilitate processing at the network/node interfaces. The paper concentrates on the networking concepts developed in the KEOPS project through a description of the implementation issues pertinent to optical Packet Switching nodes and network/node interfacing blocks, and consideration of the network functionalities provided within the optical Packet layer. The implementation, from necessity, relies on advanced optoelectronic components specifically developed within the project, which are also briefly described
