The restructuring of telecommunication in Central and Eastern Europe occurs at a time when the classical structures of telecommunication are falling apart worldwide. Coming from the socialist system in which telecommunication did not exist as an independent economic activity, the Eastern European countries have created specific “post-socialist“ modes of reform, often outdoing Western countries ...

Telecommunication companies generate a tremendous amount of data. These data include call detail data, which describes the calls that traverse the telecommunication networks, network data, which describes the state of the hardware and software components in the network, and customer data, which describes the telecommunication customers. This chapter describes how data mining can be used to unco...

Fixed–mobile convergence (FMC) is a radical innovation for telecommunication companies because it requires them to move into unknown territories that are beyond traditional business lines and underlying technologies. In the meantime, understanding what types of telecommunication companies are better at doing business through the early adoption of FMC has become increasingly important in the con...

One of the difficulties with PWM switching converters is high switching loss and electromagnetic interference due to switching at non-zero voltage and current, which limits the operating frequency. In order to reduce the converter volume and weight (by increasing the frequency) and reducing switching losses, zero voltage and current switching methods are recommended. In this paper, four main ze...

One of the difficulties with PWM switching converters is high switching loss and electromagnetic interference due to switching at non-zero voltage and current, which limits the operating frequency. In order to reduce the converter volume and weight (by increasing the frequency) and reducing switching losses, zero voltage and current switching methods are recommended. In this paper, four main ze...

We present an overview of our approach to managing security as a dimension of Quality of Service. Relative to traditional QoS attributes (e.g., jitter, deadline, latency) security has been handled rather statically and indirectly. We have developed a theory of Quality of Security Service and a related security-costing framework that supports extension of QoSS functionality to embrace existing a...

The canonical IT security properties are geared towards infrastructure security. The task of an infrastructure security service is completed once data has been delivered to the application. When false data is submitted to the infrastructure, false data will be delivered securely. To secure an application, one thus may have to go beyond securing the infrastructure and in addition provide mechani...

The issue of trust and risk in outsourced relationships was extended beyond traditional outsourcing models with the introduction of Application Service Providers (ASPs). As ASPs evolve, Managed Security Service Providers (MSSPs) have emerged as external providers of security for firms facing increasing information assurance threats. This research-in-progress paper develops a conceptual model of...

All over the world we have been assisting to a significant increase of the telecommunication systems usage. People are faced day after day with strong marketing campaigns seeking their attention to new telecommunication products and services. Telecommunication companies struggle in a high competitive business arena. It seems that their efforts were well done, because customers are strongly adop...

The recent development of the telecommunication industries that form the " info structure " environment has enhanced economic activity through improved information technology (IT). IT could enlarge the volume of information flow, which accelerates productivity, but its impact on international trade has not been tested. The main objective of this thesis is to estimate the relationship between te...