We present a quantum teleportation experiment in the quantum relay configuration using the installed telecommunication network of Swisscom. In this experiment, the Bell-state measurement occurs well after the entanglement has been distributed, at a point where the photon upon which data are teleported is already far away, and the entangled qubits are photons created from a different crystal and...

This document describes ongoingwork to be performed on a research project during the period 16 September 2002 through 15 September 2003. In subsequent sections we provide background information for the project taken from the research proposal and present some ideas that were sent recently in a progress report to the providers of the research funds. The goals of this research project are: (1) to...

Teletraffic phenomenon in classical and new telecommunication networks can be more systematically described and different system-type problems can be effectively solved using fundamental concepts of systems and GSPS (General Systems Problem Solver) methodology. Basic presupposition is that general systems methodology is usable as a logicomathematical methodology in formulation, derivation and e...

Network redimensioning (medium term planning) means to determine volume of telecommunication resources, necessary to serve given traffic offered taking into account the prescribe Quality of services (QoS). Two different network redimensioning methods are considered in this paper. The aim of the research is comparison between network redimensioning method, using ITU E.600 traffic offered definit...

Introduction Voice over IP (VoIP) has been characterised as the largest change to the telecommunication industry since the introduction of the Global System for Mobile Communication (GSM) 10 years ago. This statement is partly wrong. VoIP could be deployed as an alternative way to provide telephony with very little impact on the user experience. However, VoIP is an element of the transition fro...

Telecommunication networks have evolved over time as a result of technological advances, and network topologies and equipment have become increasingly complex. Expert systems are being successfully applied to the management of telecommunication networks. However, applying expert systems to network design is another especially beneficial yet still not very common approach. In this paper we propo...

The MPLS Transport Profile (MPLS-TP) is based on a profile of the MPLS and Pseudowire (PW) procedures as specified in the MPLS Traffic Engineering (MPLS-TE), PW, and Multi-Segment Pseudowire (MS-PW) architectures developed by the Internet Engineering Task Force (IETF). The International Telecommunication Union Telecommunication Standardization Sector (ITU-T) has specified a Transport Network ar...