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In the last few years we have seen a significant growth in synchronous optical network (SONET) deployments in telecommunication service providers. With growth of data traffic, network operators seek network-engineering tools to extract the maximum benefits out of the existing infrastructure. This has suggested a number of new optimization problems, most of them in the field of combinatorial optimization...
The location management problem corresponds to the management of the network configuration with the objective of minimizing the costs involved. It can be defines using several different schemes that principally consider the location update and the paging costs. The location area and reporting cells are two common strategies used to solve the location management problem. In this paper we present a...
Frequency assignment is a very important real-world problem, specially in GSM networks. These networks are very used in the telecommunication area (by mid 2006 GSM services were used by more than 1.8 billion subscribers across 210 countries, representing approximately 77% of the world's cellular market). In this paper we solve a real-world instance of this problem, using a differential evolution (DE)...
The mobile networks are every day more commonand useful, but the costs involved in its management are high. The location area partitioning is a strategy of location management that tries to minimize the involved costs. In this paper we present a new approach based on differential evolution algorithm applied to the location area partitioning, as a cost optimization problem. We use realistic dat for...
The Radio Network Design (RND) problem for wide area networks consists of determining the optimal locations for base station transmitters in order to get a maximum coverage area with a minimum number of transmitters. Because of the grand amount of possible solutions, this problem is most suitable to be tackled with bio-inspired techniques instead of classical approaches. Our recent research work exploited...
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