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Framework for waveband switching in multigranular optical networks: part I-multigranular cross-connect architectures [Invited]

Xiaojun Cao, Vishal Anand, Chunming Qiao
2006 Journal of Optical Networking  
We also outline how traffic grooming of subwavelength traffic can be done in WBS networks. In part II of this study rCao et aI., submitted to J. Opt.  ...  This paper presents a detailed study on recent advances and open research issues in WBS networks.  ...  for a given set of light-path demands with a comparable amount of resource. 3.C.  ... 
doi:10.1364/jon.5.001043 fatcat:2y2ck7z2sffn5kwit26x66ly3e

Guest editorial high-performance optical switches/routers for high-speed internet

M. Hamdi, H.J. Chao, D.J. Blumental, E. Leornardi, Chumming Qiao, K.Y. Yun, R. Ramaswami
2003 IEEE Journal on Selected Areas in Communications  
Zhu et al. present four optical grooming OXC architectures and compare their characteristics under a dynamic traffic environment in the paper "A Comprehensive Study on Next-Generation Optical Grooming  ...  In the paper "Dynamic Traffic Grooming Algorithm for Reconfigurable SONET Over WDM Networks," Zhang and Ramamurthy propose a dynamic traffic grooming algorithm to reconfigure the wavelength assignment  ...  From 2000 to 2001, he was Cofounder and CTO of Coree Networks, Tinton Falls, NJ, where he led a team to implement a multiterabit MPLS switch router with carrier-class reliability.  ... 
doi:10.1109/jsac.2003.815677 fatcat:7riqcjx5i5aihmqh6zxmpc3cny

WDM optical communication networks: progress and challenges

B. Mukherjee
2000 IEEE Journal on Selected Areas in Communications  
The objective of this paper is to summarize the basic optical-networking approaches, briefly report on the WDM deployment strategies of two major U.S. carriers, and outline the current research and development  ...  While optical-transmission techniques have been researched for quite some time, optical "networking" studies have been conducted only over the past dozen years or so.  ...  In [49] , extension of the traffic-grooming problem in a single ring network is studied.  ... 
doi:10.1109/49.887904 fatcat:bhqvafhiovdh3bpg2grwnkmeki

SPARK: A smart parametric online RWA algorithm

Francesco Palmieri, Ugo Fiore, Sergio Ricciardi
2007 Journal of Communications and Networks  
In this paper we propose a new online dynamic grooming-capable RWA heuristic scheme working on wavelength division multiplexing (WDM) networks as a multistage selection process.  ...  In this scenario, the routing and wavelength assignment (RWA) problem that concerns determining the optical paths and wavelengths to be used for connection establishment in a wavelength-routed network,  ...  The integrated RWA with dynamic traffic grooming brings forth the advantage of having a unified control plane paradigm handling resources both at the IP and the WDM optical layer.  ... 
doi:10.1109/jcn.2007.6182871 fatcat:cbvsohy2xrbzdbtzxjyz4y66mi

Survivable elastic optical networks: survey and perspective (invited)

Gangxiang Shen, Hong Guo, Sanjay K. Bose
2015 Photonic network communications  
Elastic optical networks (EONs) have been receiving extensive attention because of their inherent flexibility and the efficiency with which they allocate fiberbandwidth.  ...  elastic optical transponder configuration, (c) impact of physical layer impairments and limitations, (d) protection-path-based spectrum defragmentation, and (e) network availability.  ...  Because the former normally takes longer times, it is more suitable for a network with lower dynamic traffic load.  ... 
doi:10.1007/s11107-015-0532-0 fatcat:wqrgwjdi7vdqhdhtunlgwzb6bm

Evolution toward the next-generation core optical network

Saleh, Simmons
2006 Journal of Lightwave Technology  
Advanced network protection is discussed as well, at a high level. A central theme is how to harness the trend of optics scaling better than electronics.  ...  To investigate the limitations of extending today's solutions to meet these goals, a North American backbone network with a ten-fold growth in traffic is modeled.  ...  For example, optical aggregation of subrate traffic at the edge of the network may prove to be a more scalable means of packing wavelengths as compared to conventional electronic multiplexing or grooming  ... 
doi:10.1109/jlt.2006.880608 fatcat:7be6hqufvbd7flvtmrkrngflha

Waveband Switching for Dynamic Traffic Demands in Multigranular Optical Networks

Xiaojun Cao, Vishal Anand, Chunming Qiao
2007 IEEE/ACM Transactions on Networking  
In this paper, we study the performance of different MG-OXC architectures under dynamic traffic.  ...  In the case with online incremental traffic, we compare two MG-OXC architectures in terms of the blocking probability of new lightpath requests and study the impact of port counts and traffic loads.  ...  The MG-OXC is a key element for routing high speed WDM data traffic in a multigranular optical network.  ... 
doi:10.1109/tnet.2007.896234 fatcat:qfio3bc5wnggrdwsjed7tjza5q

Energy-Aware Design of Multilayer Core Networks [Invited]

Arsalan Ahmad, Andrea Bianco, Edoardo Bonetto, Luca Chiaraviglio, Filip Idzikowski
2013 Journal of Optical Communications and Networking  
We consider the power-efficient design of an Internet protocol (IP)-over-wavelength division multiplexing (WDM) network, tackling the problem of installing optical and IP layer equipment to satisfy traffic  ...  Finally, we show that a two-step design procedure, in which power is separately minimized in each layer (i.e., IP and WDM layers), can find results with a total power consumption comparable to the one  ...  ACKNOWLEDGMENTS The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 257740 (Network of Excellence "TREND  ... 
doi:10.1364/jocn.5.00a127 fatcat:3c5ka6qegbafzgzb7h3thevy6a

An energy-aware dynamic RWA framework for next-generation wavelength-routed networks

Sergio Ricciardi, Francesco Palmieri, Ugo Fiore, Davide Careglio, Germán Santos-Boada, Josep Solé-Pareta
2012 Computer Networks  
This approach results in direct power, cost and CO 2 emissions savings in the short term, as demonstrated by our extensive simulation studies. with honors).  ...  Power demand in networking equipment is expected to become a main limiting factor and hence a fundamental challenge to ensure bandwidth scaling in the next generation Internet.  ...  , and provides a fully dynamic path selection scheme in which the grooming policy is not predetermined but may vary, along with the evolution of the network traffic.  ... 
doi:10.1016/j.comnet.2012.03.016 fatcat:ndj7xv2xaregrp623expa67jcy

Framework for waveband switching in multigranular optical networks: part II--wavelength/waveband conversion and survivability [Invited]

Xiaojun Cao, Vishal Anand, Chunming Qiao
2007 Journal of Optical Networking  
We study the effect of wavelength and waveband conversion on the performance ofWBS networks with reconfigurable multigranular optical cross connects.  ...  In this paper (Part II of our study on WBS), we examine new techniques and the use of wavelength and waveband conversion in WBS networks.  ...  Introduction Optical networks using WDM technology llJ, which divides the enormous fiber bandwidth into a large number of wavelengths, are a key solution for keeping up with the tremendous growth in data  ... 
doi:10.1364/jon.6.000048 fatcat:q7ai4zziw5e7zo5j4yzoe2vbse

Towards an energy-aware Internet: modeling a cross-layer optimization approach

Sergio Ricciardi, Davide Careglio, Germán Santos-Boada, Josep Solé-Pareta, Ugo Fiore, Francesco Palmieri
2011 Telecommunications Systems  
We also combine all the above elements into a comprehensive energy-oriented network model within the context of a general constrained routing and wavelength assignment problem framework, and analyze and  ...  The containment of power consumption and the use of alternative green sources of energy are the new main goals of telecommunication operators, to cope with the rising energy costs, the increasingly rigid  ...  Towards an energy-aware Internet: modeling a cross-layer optimization approach  ... 
doi:10.1007/s11235-011-9645-7 fatcat:ehwztdambbbvxo3spxhfxytdn4

Access and Metro Network Convergence for Flexible End-to-End Network Design [Invited]

M. Ruffini, M. Achouche, A. Arbelaez, R. Bonk, A. Di Giglio, N. J. Doran, M. Furdek, R. Jensen, J. Montalvo, N. Parsons, T. Pfeiffer, L. Quesada (+9 others)
2017 Journal of Optical Communications and Networking  
This paper reports on the architectural, protocol, physical layer and integrated testbed demonstrations carried out by the DISCUS FP7 consortium in the area of accessmetro network convergence.  ...  Index Terms-access metro, network convergence, fixed mobile convergence, long-reach PON, flat optical core, optical island, 5G architecture, next generation multi wavelength PON.  ...  The case study considered in Fig. 10 was for a UK network containing 73 MC-nodes, where we considered an initial two-level hierarchical core with inner core network of 5 nodes (hence the label twolevel  ... 
doi:10.1364/jocn.9.000524 fatcat:zjdvormtcnettpy3oxown6xoqq

Optical switching: switch fabrics, techniques, and architectures

G.I. Papadimitriou, C. Papazoglou, A.S. Pomportsis
2003 Journal of Lightwave Technology  
OXCs are the basic elements for routing optical signals in an optical network or system [4] ; OXCs groom and optimize transmission data paths [5] .  ...  The authors of [27] consider a WDM packet switch without optical buffers. The network considered operates in a synchronous manner, and the traffic is assumed to be random with a load of 0.8.  ...  Currently, he is a Professor at the Department of Informatics, Aristotle University, Thessaloniki, Greece.  ... 
doi:10.1109/jlt.2003.808766 fatcat:fij5bcufbzfhbhbitgqbuoeggu

Survey and Evaluation of Space Division Multiplexing: From Technologies to Optical Networks

George M. Saridis, Dimitris Alexandropoulos, Georgios Zervas, Dimitra Simeonidou
2015 IEEE Communications Surveys and Tutorials  
alien-waves and black links small footprint static traffic with normal complexity static or semi-dynamic traffic with normal or higher complexity high complexity: orchestrate network with compute, storage  ...  Like in traditional optical networks, where wavelength, time-slot (for groomed traffic) and waveband continuity is critical in the routing and provisioning stage, SDM networks have to additionally consider  ...  He is currently studying towards his PhD degree and is a member of the High Performance Networks group at University of Bristol, U.K.  ... 
doi:10.1109/comst.2015.2466458 fatcat:7ax7wppxp5gevglmtz2ix77lwi

Multicast Flow Aggregation in IP over Optical Networks

Yi Zhu, Yaohui Jin, Weiqiang Sun, Wei Guo, Weisheng Hu, Wen-de Zhong, Min-you Wu
2007 IEEE Journal on Selected Areas in Communications  
In this paper, we study the problem of multicast flow aggregation (MFA) in the IP over optical two-layered networks under the overlay model, which can be defined as follows: given a set of head ends (i.e  ...  Finally, we compare the performance of MFA for different combination of α and β via experiments and show our heuristic algorithm is effective for large-scale network in numerical results.  ...  To support grooming of multicast traffic in an optical network, the switch architecture must be enhanced with a grooming fabric [6] .  ... 
doi:10.1109/jsac.2007.070613 fatcat:6d4ldmallrfufcanxleaxhgpcu
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