Matches in UGent Biblio for { <https://biblio.ugent.be/publication/1965525#aggregation> ?p ?o. }
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- aggregation classification "A1".
- aggregation creator B218415.
- aggregation creator B218416.
- aggregation creator person.
- aggregation creator person.
- aggregation date "2011".
- aggregation format "application/pdf".
- aggregation hasFormat 1965525.bibtex.
- aggregation hasFormat 1965525.csv.
- aggregation hasFormat 1965525.dc.
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- aggregation hasFormat 1965525.doc.
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- aggregation hasFormat 1965525.yaml.
- aggregation isPartOf urn:issn:1943-0620.
- aggregation language "eng".
- aggregation subject "Technology and Engineering".
- aggregation title "Anycast routing for survivable optical grids: scalable solution methods and the impact of relocation".
- aggregation abstract "In this paper, we address the issue of resiliency against single link network failures in optical grids and show how the anycast routing principle, which is typical of grids, can be exploited in providing efficient shared path protection. We investigate two different integer linear program models for the full anycast routing problem, deciding on the primary and backup server locations as well as on the lightpaths toward them. The first model is a classical integer linear programming (ILP) model, which lacks scalability. The second model is a large-scale optimization model which can be efficiently solved using column generation techniques. We also design two new heuristics: the first one is an improvement of a previously proposed one which, although providing near optimal solutions, lacks scalability, while the second one is highly scalable, at the expense of reduced accuracy. Numerical results are presented for three mesh networks with varying node degrees. They allow an illustration of the scalability of the newly proposed approaches. Apart from highlighting the difference in performance (i.e., scalability and optimality) among the algorithms, our case studies demonstrate the bandwidth savings that can be achieved by exploiting relocation rather than using a backup path to the original (failure-free) destination site. Numerical results for varying network topologies, as well as different numbers of server sites show that relocation allows bandwidth savings in the range of 7-21%.".
- aggregation authorList BK481961.
- aggregation endPage "779".
- aggregation issue "9".
- aggregation startPage "767".
- aggregation volume "3".
- aggregation aggregates 2952336.
- aggregation aggregates 2952337.
- aggregation isDescribedBy 1965525.
- aggregation similarTo JOCN.3.000767.
- aggregation similarTo LU-1965525.