Amplifier Placement Methods for Metropolitan WDM Ring Networks

Tran, An Vu; Tucker, R.S.; Boland, Natashia

doi:10.1109/jlt.2004.836744

Cited by 18 publications

(9 citation statements)

References 24 publications

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“…The OAP is a network provisioning problem that aims to place the minimum number of OAs in the network while satisfying the connectivity requirements of all the sessions. It was addressed at different network topologies, including the point-to-point [4] and ring networks [5]. However, it is more involved in wavelength-routing mesh networks as it includes three integrated subproblems, i.e., Routing (R), Wavelength Assignment (WA) and Power Assignment (PA) subproblems.…”

Section: Introductionmentioning

confidence: 99%

Efficient Power-Aware Network Provisioning for All-Optical Multicasting in WDM Mesh Networks

Hamad

Kamal

2008

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference

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Abstract-Optimal network provisioning is the process of equipping the network with the devices and resources needed to support all traffic demands while minimizing the network cost. Optical Amplifiers (OAs) are one of those devices that contribute significantly to the network cost, especially in wide area networks. We propose a heuristic approach for placing the minimum number of OAs in the network. The solution is designed for All-Optical Multicasting and is based on dividing the problem into smaller subproblems. While solving them separately, the heuristic takes the interdependency between these subproblems into consideration. Therefore, efficient and accurate solutions can be obtained which is shown by the numerical results.

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Section: Introductionmentioning

confidence: 99%

Efficient Power-Aware Network Provisioning for All-Optical Multicasting in WDM Mesh Networks

Hamad

Kamal

2008

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference

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“…Although novel amplifier placement methods for metropolitan WDM networks have been studied in [110,111]; in this work, it is assumed that a single optical amplifier is usually sufficient to compensate for the losses. The exception occurs when the network topology, either for DL or UL requires more than one fiber to support all the optical channels.…”

Section: Optical Link Designmentioning

confidence: 99%

Knowledge-based framework for the design of millimeter-wave (60 GHz) radio over fiber land networks

et al. 2015

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This paper presents the research work involved in the development of a knowledge-based framework for the design of millimeter-wave 60 GHz radio over fiber (RoF) land networks. It combines object-oriented, rule-based, technical information, and procedural functions to support engineers in the conceptual and preliminary design of a network. The overall framework is organized in two main modules: the first module is a tutorial of the terminology and basic principles in the design of RoF networks. The second module is a design assistant system that requests input data from the user about the functional network requirements and its prioritized figures of merit. The proposed design assistant is capable of providing support on the major activities of the 60 GHz RoF land network design such as downlink and uplink channel assignment and network clustering, wavelength allocation, optical link design, and network integration. The assistant is user interactive through the implementation of a graphical user interface. To illustrate the validation of such framework, we present a case of study of a network design with specific requirements.

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“…There are several studies on amplifier placement solutions [17]- [19]. The authors in [17] propose two methods to minimize the number of amplifiers that do not require an amplifier in every node. One method describes the amplifier placement problem exactly and uses a nonlinear programming solver to obtain a solution.…”

Section: Related Workmentioning

confidence: 99%

Optimization for Optical Network Designs Based on Existing Power Grids

Sripetch

Saengudomlert

2008

IEICE Transactions on Communications

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In a power grid used to distribute electricity, optical fibers can be inserted inside overhead ground wires to form an optical network infrastructure for data communications. Dense wavelength division multiplexing (DWDM)-based optical networks present a promising approach to achieve a scalable backbone network for power grids. This paper proposes a complete optimization procedure for optical network designs based on an existing power grid. We design a network as a subgraph of the power grid and divide the network topology into two layers: backbone and access networks. The design procedure includes physical topology design, routing and wavelength assignment (RWA) and optical amplifier placement. We formulate the problem of topology design into two steps: selecting the concentrator nodes and their node members, and finding the connections among concentrators subject to the two-connectivity constraint on the backbone topology. Selection and connection of concentrators are done using integer linear programming (ILP). For RWA and optical amplifier placement problem, we solve these two problems together since they are closely related. Since the ILP for solving these two problems becomes intractable with increasing network size, we propose a simulated annealing approach. We choose a neighborhood structure based on path-switching operations using k shortest paths for each source and destination pair. The optimal number of optical amplifiers is solved based on local search among these neighbors. We solve and present some numerical results for several randomly generated power grid topologies.

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Amplifier Placement Methods for Metropolitan WDM Ring Networks

Cited by 18 publications

References 24 publications

Efficient Power-Aware Network Provisioning for All-Optical Multicasting in WDM Mesh Networks

Efficient Power-Aware Network Provisioning for All-Optical Multicasting in WDM Mesh Networks

Knowledge-based framework for the design of millimeter-wave (60 GHz) radio over fiber land networks

Optimization for Optical Network Designs Based on Existing Power Grids

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