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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Book ChapterDOI
Algorithms for designing WDM networks and grooming the traffic
TL;DR: This paper proposes heuristic algorithms and a tabu search metaheuristic algorithm to find good solutions for real-size instances rapidly in wavelength division multiplexing networks including the traffic grooming.
Patent
An optical transport node construction device and service dispatch method
TL;DR: In this paper, the authors proposed a uniform bus construction method for the voice service and the large particle data service, which can be configured to different combinations to adapt different client requests respectively, and interfuses the (SDH/SONET) system and the (WDM) system together to realize uniform management.
Journal ArticleDOI
Multiobjective swarm intelligence for the traffic grooming problem
TL;DR: This work suggests the use of multiobjective evolutionary computation and swarm intelligence jointly for solving the Traffic Grooming problem, and proposes the following swarm algorithms: Artificial Bee Colony, Gravitational Search Algorithm, and Firefly Algorithm; but adapted to multi objective field: MO-ABC, MO-GSA, and MO-FA respectively.
Journal ArticleDOI
A Parallel Multiobjective Approach based on Honey Bees for Traffic Grooming in Optical Networks
Book ChapterDOI
Fast Service Restoration Under Shared Protection at Lightpath Level in Survivable WDM Mesh Grooming Networks
Jacek Rak,Wojciech Molisz +1 more
TL;DR: To the best of the knowledge, this is the first optimization technique, dedicated to WDM grooming networks, such that does not increase the length of backup paths and thus provides fast service restoration.
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.
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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.