On-Line Maximum Matching in Complete Multipartite Graphs with Implications to the Minimum ADM Problem on a Star Topology

On-Line Maximum Matching in Complete Multipartite Graphs with Implications to the Minimum ADM Problem on a Star Topology
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完整多部分图中的在线最大匹配及其对星形拓扑上最小 ADM 问题的影响

DOI:
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发表时间:
2009
期刊:
Colloquium on Structural Information & Communication Complexity
影响因子:
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通讯作者:
S. Zaks
S. Zaks
中科院分区:
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文献类型:
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作者:
Mordechai Shalom;Prudence W. H. Wong;S. Zaks

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光网络中的基本问题之一是将波长分配给给定的一组光路(即,着色),以最小化ADM开关的数量。在本文中,我们提出了完整多部分图中的最大匹配与星形网络中的 ADM 最小化之间的联系。寻找最大匹配的严格 2/3 竞争比意味着寻找最小化 ADM 数量的着色的严格 10/9 竞争比。
One of the basic problems in optical networks is assigning wavelengths to (namely, coloring of) a given set of lightpaths so as to minimize the number of ADM switches. In this paper we present a connection between maximum matching in complete multipartite graphs and ADM minimization in star networks. A tight 2/3 competitive ratio for finding a maximum matching implies a tight 10/9 competitive ratio for finding a coloring that minimizes the number of ADMs.