In this paper, we present a mathematical formulation for saving energy in fixed broadband wireless networks by selectively turning off idle communication devices in low-demand scenarios. This problem relies on a fixed-charge capacitated network design (FCCND), which is very hard to optimize. We then propose heuristic algorithms to produce feasible solutions in a short time.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix CHAPTER 1. GENERAL INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Thesis Structure and Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 CHAPTER 2. OPTIMAL PRICING AN...

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii CHAPTER 1. GENERAL INTRODUCTION . . . . . . . . . . 1 1.

We present algorithms for the drawing of survivable telecommunication networks. The visualization of telecommunication networks is a very important problem. For some specific rings in a network, we may have a high traffic. The network designers may decide to add more equipment to the nodes (sites) of these rings in order to increase the performance of the network. Therefore, one of the most imp...

Building new UMTS (Universal Mobile Telecommunication Systems) based networks seems to be on time. Nowadays the UMTS network design related problems are moving to the interconnection of Radio Network Controllers (RNC), placement of Media Gateways (MGw) and planning of the core network topology. This new area of UMTS network design is studied in the paper. A new algorithm is proposed for the abo...

Perturbation system is often used in the factor sensitivity analysis with neural network design. The two major and key problems: the sensitivity definition and the input perturbation ratio are investigated in this study. Besides, four models of sensitivity analysis are considered in the investigation. Through comparison and analysis, results show that the definition of sensitivity derived from ...

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Nowadays, young athletes have injuries that leave them out the competitions, this injuries may occur due to the lack of the basic principles of weight training, muscle imbalance, fatigue, overhead, among others. The proposed weightlifting monitoring system is intended to coaches in order to provide them better control of the athletes during the training session, through continuous monitoring of...

The interaction between a complex socio-economic environment and the extremely fast pace of development of new telecommunication technologies and services justifies the interest in using multicriteria evaluation in decision making processes associated with several phases of network planning and design. Based on an overview of current and foreseen evolutions in telecommunication network technolo...

The study is a review of literature related to the current international debate about the principles of road and transport network design in urban areas (Nielsen 2006). This includes a discussion of urbanists’ critique of the conventional approach in the tradition of the famous Buchanan report (Traffic in Towns 1963) and of the influential Scandinavian traffic safety principles of SCAFT (1967) ...