A Traffic-Grooming Algorithm for Wavelength-Routed Optical Networks
A Traffic-Grooming Algorithm for Wavelength-Routed Optical Networks
复制标题
波长路由光网络的流量疏导算法
DOI:
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发表时间:
2007
影响因子:
2.1
通讯作者:
C. Sriskandarajah
中科院分区:
文献类型:
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作者:
Milind Dawande;Rakesh Gupta;Sanjeewa Naranpanawe;C. Sriskandarajah
We consider the problem of grooming in all-optical networks to maximize traffic. We present an integer-programming formulation while constraining the number of optical transceivers at each node, the link load, and the capacity of each lightpath. Based on the structural properties of the problem, we develop a heuristic based on a column-generation technique. The algorithm is easy to implement, requires a modest amount of CPU time, and provides high-quality solutions. To ascertain the quality of solutions obtained by our algorithm, we present an alternative formulation that allows us to develop an upper bound using a Lagrangian-relaxation technique. An extensive computational study is presented.