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Dominating set algorithms for sparse placement of full and limited wavelength converters in WDM optical networks

Mounire El Houmaidi, Mostafa Bassiouni, Guifang Li
2003 Journal of Optical Networking  
We present a new algorithm for the sparse placement of full wavelength converters based on the concept of a k-minimum dominating set (k-MDS) of graphs.  ...  To allow placement of full wavelength conversion at any arbitrary number of nodes, we introduce a HYBRID algorithm and compare its performance with the simulation-based k-BLK approach.  ...  The authors are grateful to the two reviewers for their constructive comments and useful suggestions that helped improve the quality of this paper.  ... 
doi:10.1364/jon.2.000162 fatcat:fa2bjhntsbesnc2hhl3s72v7bu

Wavelength conversion in WDM networking

B. Ramamurthy, B. Mukherjee
1998 IEEE Journal on Selected Areas in Communications  
A review/survey of the enabling technologies, design methods, and analytical models used in wavelengthconvertible networks is provided.  ...  Wavelength conversion has been proposed for use in wavelength-division multiplexed networks to improve efficiency.  ...  A heuristic technique for the placement of these sparse converters in an all-optical network is presented in [25] . 2) Sharing of converters: Even among the switches capable of wavelength conversion,  ... 
doi:10.1109/49.725178 fatcat:5gttrdqcv5dqjdqau7jnbqsidi

Performance of WDM transport networks

E. Karasan, E. Ayanoglu
1998 IEEE Journal on Selected Areas in Communications  
With the expectation that the next step is end-to-end networking of wavelengths (in the optical domain without conversion to electronics), there is a need for new design techniques, a new understanding  ...  of the performance issues, and a new performance evaluation methodology in such networks.  ...  Due to the independence assumptions the model is valid for only densely connected networks, and it significantly overestimates the blocking probability, especially for rings and sparsely connected meshes  ... 
doi:10.1109/49.725180 fatcat:ppuqa6asbvbwjpzevvyyn4bb2a

Performance of WDM Rings with Partial and Sparse Wavelength Conversion under General Dynamic Traffic

Guido Maier, Mauro Scappini, Mario Martinelli, Achille Pattavina
2000 Transactions on Emerging Telecommunications Technologies  
We show how the partial use of wavelength converters having a limited conversion capability affects the blocking performance of connections and, more importantly in terms of network fairness, its dependence  ...  Dynamic wavelength assignment in a WDM all-optical network with partial and sparse wavelength conversion is discussed in this paper.  ...  BLOCKING PROBABILITY UNDER POIS-SON TRAFFIC In this section we propose an analytical model for the blocking probability calculation.  ... 
doi:10.1002/ett.4460110112 fatcat:jqkub4zgp5brfbb6lzrkm5ndqm

Computing blocking probabilities in multiclass wavelength routing networks

Sridhar Ramesh, George N. Rouskas, Harry G. Perros
2000 ACM Transactions on Modeling and Computer Simulation  
We present an approximate analytical method to evaluate efficiently and accurately the call blocking probabilities in wavelength routing networks with multiple classes of calls.  ...  The model is fairly general and allows each source-destination pair to service calls of different classes, with each call occupying one wavelength per link.  ...  placement of converters is known, nor can it be used to compare various converter placement strategies.  ... 
doi:10.1145/364996.365001 fatcat:tpnvnj2anfcbbhlrhk2dg4rooa

Computing Blocking Probabilities in Multi-class Wavelength Routing Networks [chapter]

Sridhar Ramesh, George N. Rouskas, Harry G. Perros
2000 Lecture Notes in Computer Science  
We present an approximate analytical method to evaluate efficiently and accurately the call blocking probabilities in wavelength routing networks with multiple classes of calls.  ...  The model is fairly general and allows each source-destination pair to service calls of different classes, with each call occupying one wavelength per link.  ...  placement of converters is known, nor can it be used to compare various converter placement strategies.  ... 
doi:10.1007/3-540-45551-5_16 fatcat:vzoatbya2vev3jrti456hrdqie

A survey on physical layer impairments aware routing and wavelength assignment algorithms in optical networks

Siamak Azodolmolky, Mirosław Klinkowski, Eva Marin, Davide Careglio, Josep Solé Pareta, Ioannis Tomkos
2009 Computer Networks  
The incorporation of the physical impairments in the routing and wavelength assignment (RWA) problem in transparent optical networks has recently received some attention from the research communities.  ...  In translucent architectures a small amount of regeneration (e.g. optical-electronic-optical conversion) is available in the network.  ...  Acknowledgements The work described in this paper 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:10.1016/j.comnet.2008.11.014 fatcat:jlkqgqupzjetjbr7ssl7y4jyyy

On optimal converter placement in wavelength-routed networks

S. Subramaniam, M. Azizoglu, A.K. Somani
1999 IEEE/ACM Transactions on Networking  
His research interests are the performance analysis of and algorithm design for communication networks.  ...  ACKNOWLEDGMENT The authors would like to thank the reviewers and the editor for their valuable comments that helped improve the presentation of this paper.  ...  EFFECT OF TRAFFIC MODEL ON CONVERTER PLACEMENT In this section, we discuss the effects of the traffic model used in obtaining the blocking probabilities for random and optimal placements.  ... 
doi:10.1109/90.803388 fatcat:3xjhbk3dsjeqhfmgdy4k3qnyuq

Comprehensive performance modeling and analysis of multicasting in optical networks

S. Sankaranarayanan, S. Subramaniam
2003 IEEE Journal on Selected Areas in Communications  
To this end, we develop accurate analytical models with moderate complexity for computing the blocking probability of multicast requests realized using lighttrees, lightpaths, and combinations of lighttrees  ...  The objective of this paper is to evaluate the tradeoff between capacity and wavelength continuity in the context of optical multicasting.  ...  ACKNOWLEDGMENT The authors would like to thank the anonymous reviewers for their comments that helped improve the paper.  ... 
doi:10.1109/jsac.2003.818229 fatcat:abzn5stjgrcxnlww45fxilau4m

A path decomposition approach for computing blocking probabilities in wavelength-routing networks

Yuhong Zhu, G.N. Rouskas, H.G. Perros
2000 IEEE/ACM Transactions on Networking  
We also demonstrate how our analytical techniques can be applied to gain insight into the problem of converter placement in wavelength-routing networks.  ...  Our algorithm represents a simple and computationally efficient solution to the difficult problem of computing call-blocking probabilities in wavelength-routing networks.  ...  ACKNOWLEDGMENT The authors would like to thank the reviewers for their constructive comments.  ... 
doi:10.1109/90.893871 fatcat:d6iwjvlmd5hpjix54unsdi6hbe

Impairment-Aware Design of Translucent DWDM Networks Based on the k-Path Connectivity Graph

Giuseppe Rizzelli, Massimo Tornatore, Guido Maier, Achille Pattavina
2012 Journal of Optical Communications and Networking  
In this paper we propose a design procedure based on comprehensive integer linear programing (ILP) for translucent optical transport networks (OTNs), exploiting an extended version of the so-called "connectivity  ...  We show that the k-p connectivity graph represents a cost-effective tool for network design, as it allows one to greatly reduce the number of resources needed in both the protected and the unprotected  ...  ACKNOWLEDGMENTS The research leading to these results has received funding from the European Community's Seventh Framework Programme FP7/2007-2013 under grant agreement 247674 (STRONGEST project).  ... 
doi:10.1364/jocn.4.000356 fatcat:h6gq2ns4ana5fnurylc4zvs3di

The Gain of Performance of Optical WDM Networks

Miroslav Bahleda, Karol Blunar
2008 Journal of Computer Systems, Networks, and Communications  
We extend the well-known analytical blocking probability model by Barry and Humblet to the general model, which is proposed for both single-fiber and multifiber network paths with any kind of wavelength  ...  We study the blocking probability and performance of single-fiber and multifiber optical networks with wavelength division multiplexing (WDM).  ...  APVT-20-022404, Technologies for all-optical processing for next generation digital optical networks, and by the Project OV 41/2003-S00095, The convergence of ICT networks and services in Slovak communication  ... 
doi:10.1155/2008/289690 fatcat:oapm3pdbtngsxelphgd7vhwqbe

On multicasting in wavelength-routing mesh networks

Ashraf Hamad, Tao Wu, Ahmed E. Kamal, Arun K. Somani
2006 Computer Networks  
In particular, the following must be determined: • The link capacity, in terms of the number of fibers per link, 1 For the case of networks provisioned for multicasting.  ...  The paper discusses the challenges of multicast support in optical wavelength routing networks, and reports on the advances made so far in this venue.  ...  The suitability of connection acceptance metric is application dependent. On the other hand, the implementation of dynamic multicasting can be quite challenging in the all-optical environment.  ... 
doi:10.1016/j.comnet.2005.12.012 fatcat:avkuytxxv5b67ae4v3ypzxmhke

Traffic grooming, routing, and wavelength assignment in WDM transport networks with sparse grooming resources

Osama Awwad, Ala I. Al-Fuqaha, Ammar Rayes
2007 Computer Communications  
In this work, we consider the RWA problem with traffic grooming (GRWA) for mesh networks under static and dynamic lightpath connection requests.  ...  Our simulation results demonstrate that deploying traffic grooming resources on the edge of optical networks is more cost effective and results in a similar blocking performance to that obtained when distributing  ...  , mutation and selection process used in our model 50 6. 2 2 Analytical Results for Static Traffic Grooming With the static traffic model, the generated lightpath requests are known ahead of time and  ... 
doi:10.1016/j.comcom.2007.08.030 fatcat:ox7zrza2wbch3ir3ywhsrgv764

Efficient and Accurate Analytical Performance Models for Translucent Optical Networks

Juzi Zhao, Suresh Subramaniam, Maite Brandt-Pearce
2014 Journal of Optical Communications and Networking  
This paper presents new analytical models for computing the blocking performance of translucent optical networks with sparsely located optical-electrical-optical regeneration nodes.  ...  The analytical models strike a balance between computational complexity and prediction accuracy.  ...  ACKNOWLEDGMENT This work was supported in part by NSF grants CNS-0915795 and CNS-0916890.  ... 
doi:10.1364/jocn.6.001128 fatcat:lux47qmnhve6xd5dkej63s3ooi
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