NDLI: Cost-effective multilayer network optimization:A top down decomposition solution

Content Provider	IEEE Xplore Digital Library
Author	Hongfang Yu Xiaoning Zhang Wang Li Anand, V.
Copyright Year	2011
Description	Author affiliation: School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu, China (Hongfang Yu; Xiaoning Zhang; Wang Li) \|\| Department of Computer Science, The College at Brockport, State University of New York, USA (Anand, V.)
Abstract	Nowadays MPLS is widely adopted as a highly scalable, protocol agnostic, data-carrying mechanism from both mobile backhauls and the optical core network. The joint optimization of IP/MPLS layer and optical layer can reduce network operating expenditures. However, the computational overhead involved in such a joint optimization is not always feasible. In this paper, we study the multilayer network optimization problem of minimizing the cost, and propose an efficient decomposition method based on Lagrange relaxation. Our work differs from previous works in that our proposed approach uses a decomposition method that decomposes the original two-layer mathematical optimization problem into an IP/MPLS-layer and an optical-layer optimization problem by relaxing the constraints between the two layers. This decomposition method enables to control the trade-off between running time and quality of the feasible solution. Numerical results for a variety of networks indicate that our proposed decomposition method can find efficient and quick solutions close to the near optimal solutions.
Starting Page	1008
Ending Page	1012
File Size	609122
Page Count	5
File Format	PDF
ISBN	9781457701009
e-ISBN	9781457701016
DOI	10.1109/ChinaCom.2011.6158304
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiprotocol label switching Mesh networks Lagrange relaxation multilayer optimization Optical fiber networks decomposition Topology Complexity theory IP networks Optimization
Content Type	Text
Resource Type	Article

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