This paper presents the Cross Infrastructure Attack Attribution Toolkit (CAT), which is a utility to analyze the vulnerability of 3G networks using telecommunication specifications. CAT analyzes vulnerabilities by generating attack graphs, which show the global view of the network in the event of an attack. The uniqueness of CAT is as follows: (1) usage of telecommunication specification writte...

Fuzzy inference method based approach to the forming of modular intellectual system of assessment the quality of communication services is proposed. Developed under this approach the basic fuzzy estimation model takes into account the recommendations of the International Telecommunication Union in respect of the operation of packet switching networks based on IPprotocol. To implement the main f...

Optimisation of the network’s architecture is one of the principal ways for telecommunication operators to increase the effectiveness of their system. The strategic planning is based on an economical analysis of statistical data and aims to find an architecture that best meets the future service demand. The current planning methods require the complete knowledge of the network and the traffic t...

The introduction of SONET technology opens o p portunities for survivable network architectures, such as selfhealing rings, which can improve telecommunication reliability. This paper presents an algorithm for routing fiber around a ring in a network, when the network nodes, links, connectivity, and which offices are to be placed on that ring together are known. The algorithm aids automated sur...

Coverage and capacity are significant issues in the planning process for cellular mobile networks. In this paper we focus on calculations for capacity, coverage for a Code Division Multiple Access (CDMA) cell for Universal Mobile Telecommunication System (UMTS) networks in different propagation environments.

The data traffic in wireless networks for the third generation (3G) mobile telecommunication systems should take into account a variety of services (voice, data, video) and environments (e.g.: private, outdoors, indoors) as well as the user mobility behavior. A good evaluation of measures of performance can help a system designer to make its strategic decisions concerning cell size and the numb...

We investigate the minimum-weight connected subgraph problem. The importance of this problem stems from the fact that it constitutes the backbone of many network design problems having applications in several areas including telecommunication, energy, and distribution planning. We show that this problem is NP-hard, an we propose a new polynomial-size nonlinear mixed-integer programming model. W...

This paper deals with simulations of a radio interface of third generation (3G) mobile systems operating in the WCDMA FDD mode including propagation predictions in macro and microcells. In the radio network planning of 3G mobile systems, the quality of coverage and the system capacity present a common problem. Both macro and microcellular concepts are very important for implementing wireless co...

This paper presents a reliability analysis of Local Exchange Carrier telecommunication switches in the United States, based upon empirical data. Telecommunication switch outage statistics are analyzed for a multiyear period, allowing examination into switch failure frequency, causes, and trends. Failure categories are created by reported outage cause codes, including human error, design error, ...

Telemedicine is a rapidly evolving field in the present scenario. Teledentistry considered as subset of telemedicine that utilizes telecommunication network and for transfer relevant clinical data images dental diagnosis treatment planning. Tele-oral-radiology subspeciality Teleradiology still an emerging phase many nations including India. Adoption practices enable Teleradiologist to enjoy fre...