There have been dramatic changes taking place in IT over the past decade. One of the greatest changes has been in the increased outsourcing of technology functions to onshore and offshore vendors. These relationships have moved beyond call center and help desk management contracts to more elaborate tasks such as application development and network design. As a result, IT workers are being impac...

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Network design problems consist of identifying an optimal subgraph of a graph, subject to side constraints. In generalized network design problems, the vertex set is partitioned into clusters and the feasibility conditions are expressed in terms of the clusters. Several applications of generalized network design problems arise in the fields of telecommunications, transportation and biology. The...

In this paper, we present a computer-tool to simulate traffic over a mobile communications network based on TETRA (Trans European Trunked RAdio) technology. This tool is specifically oriented to estimate network performances, previous to the network development, in order to make an optimum network design.

Understanding and preventing overrtting is a very important issue in artiicial neural network design, implementation, and application. Weigend (1994) reports that the presence and absence of overrtting in neural networks depends on how the testing error is measured, and that there is no overrtting in terms of the classiication error (symbolic-level errors). In this paper, we show that, in terms...

Introduction At a time when radio spectrum is a highly valued commodity and where environmental issues are high on the agenda of local planning authorities, it has become vital for network planners to determine the optimum network design to satisfy these demands. Accurately predicting propagation in highly cluttered environments, where local effects are dominant, is not a simple task. Using a m...

This paper presents two automatic cellular network design algorithms which determine the favourable positions of transmitters with respect to co-channel interference (CCI). The proposed methods are capable of maximizing the average CCI ratio in the planning region while optimizing the covered teletraac demand. Additionally, we investigate how the proposed algorithms can be extended for locating...