%A Baya, Gabriel
%A Mauttone, Antonio
%A Robledo, Franco
%D 2017
%T The Capacitated m Two Node Survivable Star Problem
%B 2017
%9
%! The Capacitated m Two Node Survivable Star Problem
%K
%X The problem addressed in this paper attempts to efﬁciently solve a network design with redundant connections, often used by telephone operators and internet services. This network connects customers with one master node and sets some rules that shape its construction, such as number of customers, number of components and types of links, in order to meet operational needs and technical constraints. We propose a combinatorial optimization problem called CmTNSSP (Ca- pacitated m Two-Node-Survivable Star Problem), a relaxation of CmRSP (Capacitated m Ring Star Problem). In this variant of CmRSP the rings are not constrained to be cycles; instead, they can be two node connected components. The contributions of this paper are (a) introduction and deﬁnition of a new problem (b) the speciﬁcation of a mathematical programming model of the problem to be treated, and (c) the approximate resolution thereof through a GRASP metaheuristic, which alter- nates local searches that obtain incrementally better solutions, and exact resolution local searches based on mathematical programming models, particularly Integer Linear Programming ones. Com- putational results obtained by developed algorithms show robustness and competitiveness when compared to results of the literature relative to benchmark instances. Likewise, the experiments show the relevance of considering the speciﬁc variant of the problem studied in this work. Keywords: Topological Network Design, Survivability, Greedy Randomized Adaptive Search Pro- cedure (GRASP), Variable Neighborhood Search (VNS), Metaheuristics.
%U http://yujor.fon.bg.ac.rs/index.php/yujor/article/view?path=
%J Yugoslav Journal of Operations Research
%0 Journal Article
%& 341
%P 26
%V 27
%N 3
%@ 2334-6043
%8 2017-09-21
%7 2017-09-21