Optimization of p-Cycle Placement for Differentiated Levels of Protection
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-08-27
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
This paper develops a new scalable and efficient model for the design of p-cycles with the differentiated levels of node protection.
The proposed model allows the indicated level of node survivability ranging from 0% to 100%, which could facilitate a carrier offer node-failure survivability (and hence availability) on a differentiated service basis.
To design p-cycles, an integer linear program (ILP) is usually formulated with the prerequisite of a prior enumeration of all possible p-cycle candidates.
A huge number of candidates may exist in a large-scale network.
Thus, the resulting ILP becomes intractable.
We propose a new design and solution method based on large-scale optimization techniques, known as column generation (CG).
With CG, our design method generates p-cycle candidates dynamically when needed.
Extensive experiments have been conducted for evaluation.
The numerical results show that, with the spare capacity used only for link protection, up to 50% node-failure survivability can be achieved for free.
Full node protection can be achieved at a marginal cost in comparison with those for link protection only.
American Psychological Association (APA)
Li, Hong Hui& Fu, Xue Liang. 2013. Optimization of p-Cycle Placement for Differentiated Levels of Protection. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-1011151
Modern Language Association (MLA)
Li, Hong Hui& Fu, Xue Liang. Optimization of p-Cycle Placement for Differentiated Levels of Protection. Mathematical Problems in Engineering No. 2013 (2013), pp.1-5.
https://search.emarefa.net/detail/BIM-1011151
American Medical Association (AMA)
Li, Hong Hui& Fu, Xue Liang. Optimization of p-Cycle Placement for Differentiated Levels of Protection. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-1011151
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1011151