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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kungmeng Lo Habibi, D. Quoc Viet Phung Hoang Nghia Nguyen Byungkyu Kang |
| Copyright Year | 2005 |
| Description | Author affiliation: Sch. of Eng. & Math., Edith Cowan Univ., Perth, WA, Australia (Kungmeng Lo; Habibi, D.; Quoc Viet Phung; Hoang Nghia Nguyen; Byungkyu Kang) |
| Abstract | P-cycles have been recognized as a useful protection scheme in WDM mesh networks. This is a type of shared link protection that not only retains the mesh-like capacity efficiency, but also achieves the ring-like protection switching speed. However, finding the optimal set of p-cycles for protecting traffic demands is not a simple task and is an NP-hard problem. A general approach is to determine a set of candidate p-cycles and then determine optimal or near-optimal solutions by using integer linear programming (ILP) models or heuristics. In a dense mesh network, however, the number of candidate cycles is huge, and increases exponentially if the node number is increased. Thus, searching for a suitable set of efficient candidate cycles is crucial and imperative to balancing the computational time and the optimality of solutions. In this paper, we propose a dynamic P-cycles selection (DPS) algorithm that improves the efficiency of enumerating candidate p-cycles. The dynamic approach for cycle selection is based on the network state. In the DPS algorithm, all cycles are found and stored, then an efficient and sufficient set of p-cycles is extracted to achieve 100% working protection, minimize the spare capacity, and reduce time complexity. |
| File Size | 1843138 |
| File Format | |
| ISBN | 1424400007 |
| ISSN | 15312216 |
| DOI | 10.1109/ICON.2005.1635625 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-11-16 |
| Publisher Place | Malaysia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Intelligent networks Optical fiber networks Wavelength division multiplexing WDM networks Mesh networks Telecommunication traffic Protection switching Signal restoration Mathematics Traffic control |
| Content Type | Text |
| Resource Type | Article |
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