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Optical networks with hybrid routing

Hong Huang, J.A. Copeland
2003 IEEE Journal on Selected Areas in Communications  
In this paper, we propose a hybrid wavelength and subwavelength routing scheme that can preserve the benefits of optical bypass for large traffic flows at the same time provide multiplexing gain for small  ...  But all-optical switching has the limitations of coarse granularity, lack of multiplexing gain, and scarcity of wavelength resources, which do not mesh well with Internet traffic that has many small and  ...  The first part of our work deals with traffic grooming in mesh optical networks under static traffic condition, but it is different from [13] in that we consider arbitrary bandwidth traffic flows rather  ... 
doi:10.1109/jsac.2003.815841 fatcat:rmggabebjncsvdlhlqnqi7hxdy

Dynamic traffic grooming: the changing role of traffic grooming

Shu Huang, Rudra Dutta
2007 IEEE Communications Surveys and Tutorials  
[32] Blocking probability in single-hop traffic grooming mesh networks. [33] Blocking probability in multi-hop traffic grooming mesh networks.  ...  Xin et al. study the blocking performance analysis problem on traffic grooming in single hop mesh networks using such an uncorrelated model [32] .  ... 
doi:10.1109/comst.2007.358970 fatcat:svejo53v5rfkvkvqjhiogporzy

Impact of node clustering on network cost and resource utilization

T. G. Orphanoudakis, A. Drakos, A. Stavdas
2012 2012 16th International Conference on Optical Network Design and Modelling (ONDM)  
In this work we benchmark through appropriate performance metrics the legacy Optical Circuit Switching (OCS) mode in an optical network of nodes following a mesh topology interconnection vs. a clustered  ...  are frequently observed in today's networks, while the hierarchical clustered architecture with dynamic reservations can exploit statistical multiplexing efficient grooming traffic at appropriate granularity  ...  ACKNOWLEDGMENT Work carried out with the support of STRONGEST, an Integrated Project funded by European Commission 7th ICT-Framework Program and specifically of our Telecom Italia colleagues, Marco Quagliotti  ... 
doi:10.1109/ondm.2012.6210202 dblp:conf/ondm/OrphanoudakisDS12 fatcat:6toresgklzbdrgk5ufc5huz4di

A Heuristic Approach for Multicast Traffic Grooming in Optical WDM Mesh Networks

Ashok Kumar Pradhan, Subhendu Barat, Tanmay De
2013 International Journal of Computer Network and Information Security  
In this work, multicast traffic grooming problem is addressed to maximize the bandwidth utilization for a set of sessions in an optical WDM mesh topology.  ...  Abstra -Traffic grooming is being considered as a key functionality of WDM networks, in which, multiple low speed traffic requests are groomed into a single high capacity wavelength channel.  ...  CONCLUSION In this work, we address the problem of grooming for multicast traffic in optical WDM mesh network.  ... 
doi:10.5815/ijcnis.2014.01.06 fatcat:whkcv4mzfvh6dcvfakyqoljxly

Grooming multicast traffic in unidirectional SONET/WDM rings

Anuj Rawat, Richard La, Steven Marcus, Mark Shayman
2007 IEEE Journal on Selected Areas in Communications  
In this paper we study the problem of efficient grooming of given non-uniform multicast traffic demands on a unidirectional SONET/WDM ring.  ...  The goal is to try to minimize the network cost as given by (i) the number of wavelengths required per fiber and (ii) the number of electronic Add-Drop Multiplexers (ADMs) required on the ring.  ...  Although multicast traffic grooming in mesh WDM networks is a general case of the same problem in WDM rings, the ideas that are applied for mesh networks in [13] [19] are not very attractive for unidirectional  ... 
doi:10.1109/jsac-ocn.2007.025806 fatcat:xs25kin46ncz7i6ognnzjepkii

G+: Enhanced Traffic Grooming in WDM Mesh Networks using Lighttours

Fernando Solano, Luis Caro, Jaudelice De Oliveira, Ramon Fabregat, Jose Marzo
2007 IEEE Journal on Selected Areas in Communications  
Index Terms-Wavelength division multiplexing (WDM), lighttours, traffic grooming, lightpath, mesh network, integer linear program (ILP), photonic switching systems, optical transport network (OTN), photonic  ...  The ability to groom more traffic in the middle of a lighttour is achieved with the support of a simple optical device named λ-monitor (previously introduced in the RingO project).  ...  Kurzweg, Drexel University, for his comments and insights related to physical optics.  ... 
doi:10.1109/jsac.2007.070615 fatcat:lp6rqzzq45hhhedvp2o5yo75va

Multicast traffic grooming in wavelength-routed WDM mesh networks using dynamically changing light-trees

Xiaodong Huang, F. Farahmand, J.P. Jue
2005 Journal of Lightwave Technology  
In this paper, we address the online multicast traffic grooming problem in wavelength-routed wavelength division multiplexing (WDM) mesh networks with sparse grooming capability.  ...  For the purpose of comparison, we also implement a lightpath-based grooming algorithm by putting a constraint on the optical-splitting capability of the nodes.  ...  Recently, there has been some work on unicast traffic grooming in WDM mesh networks.  ... 
doi:10.1109/jlt.2005.856244 fatcat:yhjxyue7xrfvfkion5entvyew4

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  
It includes optical ring metropolitan networks (MAN) and meshed wide-area network (WAN) connected by optical packet routers (OPR).  ...  In the paper "Performance Analyses of Optical Burst Switching Networks," Rosberg et al. provides a scalable framework for analysis and performance evaluation of OBS networks.  ...  He has been doing research in the areas of terabit switches/routers, quality-of-service (QoS) control, optical networking, and network security.  ... 
doi:10.1109/jsac.2003.815677 fatcat:7riqcjx5i5aihmqh6zxmpc3cny

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.  ...  Optical networks using wavelength-division multiplexing (WDM) are the foremost solution to the ever-increasing traffic in the Internet backbone.  ...  Cao is supported in part by NSF CNS-0546151, V. Anand is supported in part by the Scholarly Incentive Award at SUNY Brockport, and C. Qiao is supported in part by NSF 0312563.  ... 
doi:10.1364/jon.5.001043 fatcat:2y2ck7z2sffn5kwit26x66ly3e

Grooming of Multicast Sessions in Sparse Splitting WDM Mesh Networks using Virtual Source Based Trees

N. Sreenath, Balaji Palanisamy, S.R. Nadarajan
2006 2006 International Conference on Systems and Networks Communications (ICSNC'06)  
We, in this paper, address the problem of routing and wavelength assignment of multicast sessions with subwavelength traffic demands in sparse splitting WDM networks.  ...  Cost effective grooming of several sessions with fractional wavelength bandwidth onto a single wavelength has become prominent in WDM networks.  ...  VSGroom heuristic Since unicast traffic grooming for mesh networks in NP-complete [2] and as unicast is a special case of multicast with one node in the destination set, the traffic grooming problem  ... 
doi:10.1109/icsnc.2006.42 dblp:conf/icsnc/SreenathPN06 fatcat:o4beibit55eencwuvdlgiebtvm

Scalability and power consumption of static optical core networks

Slavisa Aleksic, Ward Van Heddeghem, Mario Pickavet
2012 2012 IEEE Global Communications Conference (GLOBECOM)  
The results show that the concept of a static optically transparent core network promises high energy efficiency, and scalability to several tens of nodes.  ...  A large amount of traffic in core networks is highly aggregated and core nodes are interconnected by high-capacity links.  ...  optical bypass together with efficient grooming strategies [5] .  ... 
doi:10.1109/glocom.2012.6503651 dblp:conf/globecom/AleksicHP12 fatcat:oouibu3x6vaojbo7c2j3nifowi

On-Line Routing in WDM–TDM Switched Optical Mesh Networks

Arun Vishwanath, Weifa Liang
2006 Photonic network communications  
This paper considers the on-line traffic grooming problem in WDM-TDM switched optical mesh networks without wavelength conversion capability.  ...  In this paper, we present an on-line traffic grooming algorithm for the concerned problem.  ...  The node architecture for subwavelength demand traffic grooming in such a WDM-TDM switched mesh network is shown in Fig. 2 .  ... 
doi:10.1007/s11107-005-7356-2 fatcat:vaikcixtp5az5nh6ydd6amsuym

Guest editorial WDM-based network architectures

Chunming Qiao, D. Datta, G. Ellinas, A. Gladisch, E. Modiano
2002 IEEE Journal on Selected Areas in Communications  
The second paper, by Zhu and Mukherjee, investigates traffic grooming and routing and wavelength assignment (RWA) in a WDM mesh network.  ...  Grooming the subwavelength traffic onto wavelengths is one of the areas of great importance for both the carriers that deploy intelligent network elements and the equipment vendors that develop such elements  ... 
doi:10.1109/jsac.2002.974657 fatcat:43whkjnfe5dkbngvdbopgej4km

On-Line Routing in WDM-TDM Switched Optical Mesh Networks

A. Vishwanath, Weifa Liang
2005 Sixth International Conference on Parallel and Distributed Computing Applications and Technologies (PDCAT'05)  
This paper considers the on-line traffic grooming problem in WDM-TDM switched optical mesh networks without wavelength conversion capability.  ...  In this paper, we present an on-line traffic grooming algorithm for the concerned problem.  ...  The node architecture for subwavelength demand traffic grooming in such a WDM-TDM switched mesh network is shown in Fig. 2 .  ... 
doi:10.1109/pdcat.2005.176 dblp:conf/pdcat/VishwanathL05 fatcat:h25jnryycbhxhjj62qng5ssque

Design and Provisioning of WDM Networks With Many-to-Many Traffic Grooming

Mohammad A. Saleh, Ahmed E. Kamal
2010 IEEE/ACM Transactions on Networking  
In this paper, we address the problem of designing and provisioning of WDM networks to support many-to-many traffic grooming.  ...  Based on different WDM node architectures, we propose four different WDM networks for many-to-many traffic grooming.  ...  groom each of the subwavelength many-to-many traffic demands on these optical channels, and 3) The route and the wavelength to assign to each of the optical channels on the WDM network.  ... 
doi:10.1109/tnet.2010.2051234 fatcat:fho7tvuh65gabel765pmecxoze
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