Open Access
A Review of Traffic Grooming in WDM Optical Networks: Architectures and Challenges
Keyao Zhu,Biswanath Mukherjee +1 more
Reads0
Chats0
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
More filters
Proceedings ArticleDOI
An ILP-based Approach for Dual-Layer Optimization in Large-Scale Optical Networks
TL;DR: An efficient decomposition framework is developed to solve a dual-layer network design problem in the optical network with optical-electrical-optical (OEO) converters with customized designs of preprocessing and cutting plane techniques and can achieve near-optimal solutions for large-scale networks.
Patent
A scheduling equipment and a scheduling method in optical communication network
Zhiyong Huang,Buyun Wang +1 more
TL;DR: In this article, a grooming apparatus for an optical communication network is presented, which consists of a photoelectric integration unit and an electrical-layer grooming unit, which is configured to groom the single-wavelength electrical signals.
Book ChapterDOI
A Parallel Two-Level Multiobjective Artificial Bee Colony Approach for Traffic Grooming
TL;DR: A multiobjective evolutionary algorithm based on swarm intelligence, the Multiobjective Artificial Bee Colony (MO-ABC) algorithm, which is able to obtain around 80% of average efficiency with 32 cores in a machine with four 8-core nodes.
References
More filters
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.