Filters








355 Hits in 4.6 sec

Resource Allocation for Optical Packet-switching Routers with Self-similar Bursty Traffic [chapter]

J. J. He, D. Simeonidou
2001 IFIP Advances in Information and Communication Technology  
This paper addresses the problem of resource allocation in optical packetswitching routers under self-similar bursty Internet traffic conditions.  ...  Our findings suggest that selfsimilar traffic significantly increases the resource requirement compared with similar studies performed using traditional bursty traffic models.  ...  Acknowledgements: The authors wish to thank Coming Optical Fibres for funding this research project.  ... 
doi:10.1007/978-0-387-35410-1_7 fatcat:hbzb4njsxzbqtngntfukihjufm

Bandwidth Utilisation and Wavelength Re-Use in WDM Optical Burst-Switched Packet Networks [chapter]

Michael Düser, Polina Bayvel
2002 IFIP Advances in Information and Communication Technology  
Results describing the design trade-offs in bandwidth utilisation and wavelength re-use in optical burst-switched networks are reported.  ...  The effects of traffic statistics are analysed, and a set of bounds for the network design and lightpath set-up time for dynamic network control is derived.  ...  transparent optical core Fig. 2 . 2 Edge router model with electronic pre-sorting, non-blocking outputbuffered switch and tuneable wavelength section PLR for Pareto packet size and Pareto inter-arrival  ... 
doi:10.1007/978-0-387-35491-0_12 fatcat:ez2bt7745jd7pivcr5gsa7am6m

The application of optical packet switching in future communication networks

M.J. O'Mahony, D. Simeonidou, D.K. Hunter, A. Tzanakaki
2001 IEEE Communications Magazine  
In the longer term, it is currently envisaged that the bandwidth efficiency associated with optical packet switching (a transport technology that matches the bursty nature of multimedia traffic) will be  ...  This article considers possible network application scenarios for optical packet switching.  ...  Gardner of the University of Strathclyde for programming the simulator which produced Fig. 5a .  ... 
doi:10.1109/35.910600 fatcat:lvkyern2wjhe3a2fpsfv65kzwi

Buffering-deflection tradeoffs in optical burst switching

Stefano Bregni, Angelo Caruso, Achille Pattavina
2010 Photonic network communications  
A performance evaluation is carried out to evaluate and compare these solutions for different network topologies with different node and traffic parameters.  ...  A very important issue in optical burst switching (OBS) networks is the excessive burst drop when no suitable network resources are found during path reservation.  ...  Acknowledgements The study described in this article was carried out with the support of the BONE-project ('Building the Future Optical Network in Europe'), a Network of Excellence funded by the European  ... 
doi:10.1007/s11107-010-0259-x fatcat:tknzdz63q5cc7a342gmqqvk6ni

Advances in internet congestion control

Seungwan Ryu, Christopher Rump, Chunming Qiao
2003 IEEE Communications Surveys and Tutorials  
It has been shown that static solutions such as allocating more buffers, providing faster links or faster processors are not effective for congestion control purposes.  ...  These TCP sources constitute 90 percent of all traffic with 50-70 percent of this TCP traffic being short-lived connections in size and lifetime (so called mice) [2] [3] [4] .  ...  Conversely, data traffic such as FTP, Web traffic, and video traffic is known to be bursty and self-similar [12, 14, 15] .  ... 
doi:10.1109/comst.2003.5342228 fatcat:exp7fdhrkjcgzedqq3grbzesky

A SURVEY ON WAVELENGTH DIVISION MULTIPLEXING (WDM) NETWORKS

Ramesh G, Sundara Vadivelu S, Jose Anand
2010 ICTACT Journal on Communication Technology  
Also an analysis on buffer size in optical networks for real time traffic was performed.  ...  The dynamic growth of Internet traffic and its bursty nature requires high transmission rate.  ...  Because of high transmission efficiency when considering IP traffic, optical packet switching has gained particular attention in recent years.  ... 
doi:10.21917/ijct.2010.0005 fatcat:3nqalgx6xfe7rikakxon4z6bqu

TCP switching: exposing circuits to IP

P. Molinero-Fernandez, N. McKeown
2002 IEEE Micro  
The problem is with how circuit switches interact with IP routers. TCP switching presents a method of interaction, promising automatic and dynamic circuit allocation.  ...  For example, if traffic increases between two neighboring routers, no simple or standard way exists to automatically increase the capacity between them.  ...  Acknowledgments We thank Byung-Gon Chu for his contributions to the implementation of the TCP Switch in Linux.  ... 
doi:10.1109/40.988693 fatcat:vn33jgtukfakbcoq6dsuvedqp4

Scheduling Algorithms for a Slotted Packet Switch with either Fixed or Variable Length Packets

F. Callegati, W. Cerroni, G. Corazza, C. Develder, M. Pickavet, P. Demeester
2004 Photonic network communications  
We consider a fairly generic all-optical packet switch architecture with a feedback optical buffer constituted of fibre delay lines.  ...  For both cases, we show that in spite of the limited queuing resources, acceptable performance in terms of packet loss can be achieved for reasonable hardware resources with an appropriate design of the  ...  In case of FLP, we also illustrate the performance under self-similar traffic generated through on-off sources with Pareto distributed on-and off periods.  ... 
doi:10.1023/b:pnet.0000033976.33668.65 fatcat:bxpqvt3z4vdahkkcquolg63dm4

Topology-based hierarchical scheduling using Deficit Round Robin: Flow protection and isolation for triple play service

Hao Yu, Ying Yan, Michael S. Berger
2009 2009 First International Conference on Future Information Networks  
This is significant for IPTV services in Carrier Ethernet networks.  ...  Based on the knowledge of the network, the scheduler can manage the traffic on behalf of other less advanced nodes, avoid potential traffic congestion, and provide flow protection and isolation.  ...  SCHEDULING ALGORITHMS COMPARISON Scheduling algorithms are used in a router/switch design in order to attain the QoS requirement and fairly allocate limited resources among traffic flows.  ... 
doi:10.1109/icfin.2009.5339606 fatcat:xf2zmlkvabd6paklvn5ru6l3oq

Study of Bursty Internet Traffic

Kannikar Siriwong, Lester Lipsky, Reda Ammar
2007 Sixth IEEE International Symposium on Network Computing and Applications (NCA 2007)  
We study the effects of bursty Internet Traffic through simulations. Both short-range dependency (SRD) traffic and longrange dependency (LRD) traffic are simulated over different burst parameters.  ...  Effects of employing different traffic admission constraints are examined. An alternative for improving network throughput and utilization is proposed.  ...  ., N -Flow model) with heavy-tailed distribution for ON durations produces self-similar traffic. .  ... 
doi:10.1109/nca.2007.45 dblp:conf/nca/SiriwongLA07 fatcat:lrxeiz3edvfd3movfqsd4r56pu

Datacenter-Oriented Elastic Optical Networks: Architecture, Operation, and Solutions

2014 KSII Transactions on Internet and Information Systems  
With the exponentially increasing Internet traffic and emergence of more versatile and heterogeneous applications, the design of datacenter networks (DCNs) is subject to unprecedented requirements for  ...  sufficient switching capacity and elastic bandwidth allocation.  ...  optical channel to provide a proper bandwidth for each data request, so as to efficiently adapt to the bursty traffic demands purely through a dynamic optical-layer resource allocation process.  ... 
doi:10.3837/tiis.2014.11.016 fatcat:umoude4l7rfelm67ch7r7bqnwa

Power Awareness in Network Design and Routing

J. Chabarek, J. Sommers, P. Barford, C. Estan, D. Tsiang, S. Wright
2008 IEEE INFOCOM 2008 - The 27th Conference on Computer Communications  
We support our arguments by providing a case study of power demands of two standard router platforms that enables us to create a generic model for router power consumption.  ...  Our results indicate the potential for significant power savings in operational networks by including power-awareness.  ...  ACKNOWLEDGMENT The authors would like to thank Cisco Systems for their support of this work. This work was also supported in part by NSF grants CNS-0347252, CNS-0646256, CNS-0627102.  ... 
doi:10.1109/infocom.2008.93 dblp:conf/infocom/ChabarekSBETW08 fatcat:zkcc7ts6ljgl5kgw72vcdde6fi

Power Awareness in Network Design and Routing

J. Chabarek, J. Sommers, P. Barford, C. Estan, D. Tsiang, S. Wright
2008 2008 Proceedings IEEE INFOCOM - The 27th Conference on Computer Communications  
We support our arguments by providing a case study of power demands of two standard router platforms that enables us to create a generic model for router power consumption.  ...  Our results indicate the potential for significant power savings in operational networks by including power-awareness.  ...  ACKNOWLEDGMENT The authors would like to thank Cisco Systems for their support of this work. This work was also supported in part by NSF grants CNS-0347252, CNS-0646256, CNS-0627102.  ... 
doi:10.1109/infocom.2007.93 fatcat:uvmxomazcrgkhnenmckq7kvzva

Transparent optical packet switching: the European ACTS KEOPS project approach

C. Guillemot, M. Renaud, P. Gambini, C. Janz, I. Andonovic, R. Bauknecht, B. Bostica, M. Burzio, F. Callegati, M. Casoni, D. Chiaroni, F. Clerot (+14 others)
1998 Journal of Lightwave Technology  
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  ...  The adopted approach uses optical packets of fixed duration with low bit rate headers to facilitate processing at the network/node interfaces.  ...  The rapid increase in traffic levels necessitates networks with fast packet switching, supported by native optical transmission.  ... 
doi:10.1109/50.736580 fatcat:7bpfipf3r5ffvompncdsrcdluy

Performance Issues in Optical Burst/Packet Switching [chapter]

Davide Careglio, Javier Aracil, Siamak Azodolmolky, Joan García-Haro, Sebastian Gunreben, Guoqiang Hu, Mikel Izal, Andreas Kimsas, M. Klinkowski, Martin Köhn, Eduardo Magaña, Daniel Morató (+7 others)
2009 Lecture Notes in Computer Science  
This chapter summarises the activities on optical packet switching (OPS) and optical burst switching (OBS) carried out by the COST 291 partners in the last 4 years.  ...  burst/packet switching Abstract.  ...  Performance evaluation of adaptive burst assembly algorithms in OBS networks with self-similar traffic sources In this work the self-similarity level of the traffic both before and after the execution  ... 
doi:10.1007/978-3-642-01524-3_8 fatcat:vozuuja5zbaaliaaa4wxex6dai
« Previous Showing results 1 — 15 out of 355 results