Open Access
A Review of Traffic Grooming in WDM Optical Networks: Architectures and Challenges
Keyao Zhu,Biswanath Mukherjee +1 more
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TLDR
Various network and node architectures for different traffic -grooming scenarios are compared and discussed and it is expected that there will be much more interest on the mesh topology suitable for long-haul, widearea networks.Abstract:
The transmission capacity of a link in today’s optical networks has increased significantly due to wavelength-division multiplexing (WDM) technology. The network performance is now mainly limited by the processing capability of the network elements, which are mainly electronic. By efficiently grooming low-speed traffic streams onto high-capacity optical channels, it is possible to minimize this electronic processing and eventually increase the network performance. Traffic grooming is an emerging topic that has been gaining more research and commercial attention. Most previous research on traffic grooming is mainly based on the ring network topology. It is expected that there will be much more interest on the mesh topology suitable for long-haul, widearea networks. This paper reviews most of the recent research work on traffic grooming in WDM ring and mesh networks. Various network and node architectures for different traffic -grooming scenarios are compared and discussed. * This work has been supported by the National Science Foundation (NSF) under Grant Nos. NCR-9508239 andANI-9805286, and by Sprint Advanced Technology Laboratories (ATL).read more
Citations
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Proceedings ArticleDOI
An Intelligent Static Traffic Grooming Scheme in IP over DWDM Internet
TL;DR: An intelligent static traffic grooming scheme in IP over DWDM optical Internet tries to maximize the comprehensive user traffic request delay satisfaction degree and minimize the network cost simultaneously with both the user trafficrequest delay and bandwidth constraints met.
Proceedings ArticleDOI
Traffic Grooming Algorithm for Multicast Sessions in WDM Optical Networks
TL;DR: Simulation results show that EMGA has lower network blocking probability under the situation of limited wavelengths and transceivers in the network.
Book ChapterDOI
Learning model for reducing the delay in traffic grooming optimization
TL;DR: The practicability of the proposed learning model and the clustering strategies is discussed, which is a learning model in which arriving service patterns are clustered into groups corresponding to separate optimal grooming solutions.
Proceedings Article
Path level traffic grooming strategies for multi-objective design in WDM networks
TL;DR: The simulation results show that traffic grooming with multiple sources/destinations are the most flexible and efficient grooming techniques that give wide-spread solutions on the objective space, than those solutions obtained from the P2P grooming technique in both objective values.
Proceedings ArticleDOI
Existing-lightpath-aware zone-based approach for efficient and scalable dynamic traffic grooming in large optical WDM mesh networks
TL;DR: An efficient and scalable dynamic traffic grooming algorithm suitable for large WDM mesh networks by limiting the zone where lightpaths for new connection requests are searched and developing a mathematical model to estimate the possibility that a node connects the source and destination when included to enlarge the searching zone.
References
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Book
Optical Networks: A Practical Perspective
TL;DR: The second edition of Optical Networks: A Practical Perspective succeeds the first as the authoritative source for information on optical networking technologies and techniques as discussed by the authors, covering componentry and transmission in detail but also emphasizing the practical networking issues that affect organizations as they evaluate, deploy, or develop optical solutions.
Book
Optical Communication Networks
TL;DR: A comprehensive explanation of the newest developments in optical networks in the MCGRAW-HILL COMPUTER COMMUNICATIONS series.
Journal ArticleDOI
Traffic grooming in an optical WDM mesh network
Keyao Zhu,Biswanath Mukherjee +1 more
TL;DR: The node architecture for a WDM mesh network with traffic-grooming capability, using wavelength-division multiplexer (OADM) to perform the optical bypass at intermediate nodes to improve the network throughput is studied.
Journal ArticleDOI
Light trees: optical multicasting for improved performance in wavelength routed networks
TL;DR: It is demonstrated that an optimum light-tree-based virtual topology has clear advantages over an optimumLightpath-basedvirtual topology with respect to the above two objectives.
Journal ArticleDOI
Traffic grooming in WDM networks
TL;DR: An overview of the traffic grooming problem is given and some representative work in this area is surveyed, showing that grooming traffic in general mesh networks is an important emerging problem.