We consider a generalized version of the rooted connected facility location problem which occurs in planning of telecommunication networks with both survivability and hop-length constraints. Given a set of client nodes, a set of potential facility nodes including one predetermined root facility, a set of optional Steiner nodes, and the set of the potential connections among these nodes, that ta...

Capacitated fixed-charge network flows are used to model a variety of problems in telecommunication, facility location, production planning and supply chain management. In this paper, we investigate capacitated path substructures and derive strong and easy-to-compute path cover and path pack inequalities. These inequalities are based on an explicit characterization of the submodular inequalitie...

The paper describes development of intelligent system, based on integration of simulation, expert, situational and multi-agent simulation, as well as object oriented approach. The developed decision support system was applied for multi-service telecommunication networks design and telecommunication services area business processes dynamic simulation. Paper starts with prerequisites for developm...

This paper presents the concept of green telecommunication networks and provides information about the power consumption within fixed line and wireless communication networks. It outlines the significance of energy efficiency in modern and future telecommunication networks and suggests directions for optimizing network performance in terms of energy demands. Numerous examples and reviews are al...

A business model framework is presented which is derived from the literature to aid the development of viable business models expected from the amalgamation of mobile telecommunication and space infrastructure. With examples for the global mobile telecommunication industry, this theoretical paper will illustrate the importance of technological and organizational co-operation between the various...

A computer network management system presents one manager and several agents. The management of large networks demands much computer resources and management system capacity, impossible to achieve with just one manager. The TMN standard, that intends to standardize management systems for telecommunication networks offering those resources, already foresees the use of several managers organized ...

This article discusses the architecture, control protocols, and coordination mechanisms used in today’s multimedia Ž . Ž . conferencing standards for ISDN Integrated Services Data Network and IP Internet Protocol networks. Specifically, the Ž . ITU-T’s International Telecommunication Union – Telecommunication Standardization Sector H.320 and H.323 multimedia conferencing standards are discussed...

The recent emergence of multimedia applications has led to the deployment of various telecommunication technologies (e.g. IP, wireless) in addition to traditional PSTN (Public Switched Telephone Network) circuit switched networks. In this heterogeneous telecommunication world, users make calls without regard to the fact that the originating network may differ from the terminating network, and t...

The framework for MPLS in transport networks (RFC 5921) provides reference models for the MPLS Transport Profile (MPLS-TP) Transport Service Interfaces, which are a User-to-Network Interface (UNI), and a Network-to-Network Interface (NNI). This document updates those reference models to show detailed reference points for these interfaces, along with further clarification of the functional archi...