Optimization for Optical Network Designs Based on Existing Power Grids

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概要

• 論文の詳細を見る

• 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.

• （社）電子情報通信学会の論文
• 2008-03-01

著者

• Saengudomlert Poompat

  Asian Inst. Of Technol. Tha

• SRIPETCH Areeyata

  Asian Institute of Technology

関連論文

• Joint Transmitter and Receiver Power Allocation under Minimax MSE Criterion with Perfect and Imperfect CSI for MC-CDMA Transmissions
• Multicast Routing and Wavelength Assignment with Shared Protection in Multi-Fiber WDM Mesh Networks : Optimal and Heuristic Solutions
• Optimization for Optical Network Designs Based on Existing Power Grids

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