In this paper, Pareto oplima1it.y is studied i n the context of multiclass telecon~.naui~ica~ions networks v i t h constraints on the maxin~.unt alloulahle user delays. The perforn~~a.i~~ce objective of each individual class is th.e naaxin~~izat ioi~~ of throughput under a delay constraiii.t. Users share the net.work on a processor sharing basis. Th.e i~?~altiohjective problem that arises is so...

Designing low-cost networks that survive certain failure situations is one of the prime tasks in the telecommunication industry. In this paper we survey the development of models for network survivability used in practice in the last ten years. We show how algorithms integrating polyhedral combinatorics, linear programming, and various heuristic ideas can help solve real-world network dimension...

The planning of investments when building and upgrading communication networks amounts to notoriously difficult combinatorial problems. Solving these issues can not be done in a straightforward way within a reasonable calculation time, despite the ever-growing computational power of computers and the flexible off-line character of network planning. In this paper, an overview is given of the mea...

As VoIP telecommunication networks are becoming popular, more and more VoIP calls are being madeto accomplish security critical activities, e.g., E911 services, phone banking. However, the security ram-ifications of using VoIP have not been fully recognized, and there exists a substantial gap in the under-standing of the potential impact of VoIP exploits on the VoIP users. In this c...

As the size of communication networks keeps on growing, faster connections, cooperating technologies and the divergence of equipment and data communications, the management of the resulting networks gets additional important and time-critical. More advanced tools are needed to support this activity. In this article we describe the design and implementation of a management platform using Artific...

Digital telecommunication networks represent a fusion of concepts, techniques, and technologies from the fields of both communication and computing. The evaluation of such systems can likewise draw on methodologies which have evolved in both disciplines, bringing them together in a fashion that is suited to the needs of integrated services digital networks. With this aim, we discuss how quality...

The constant evolution of technology is changing the way we live. With advent highly developed and robust telecommunication networks, can instantly communicate send high-definition images videos across globe. According to International Telecommunication Union (ITU), almost 85% world’s population covered by a 4G network,() phones have become considerably more affordable. These information commun...

The continuous growth of subscribers and the large variety of requested services in cellular communication networks are driving the telecommunication industry to provide ubiquitous information access and diversified services by requiring different bandwidth and Quality of Service (QoS). Proposals being pursued in several studies and field implementations address these needs using hierarchical a...

In telecommunication networks, full connectivity resilience to multiple link failures is too costly as it requires a network topology with many redundant links. Alternatively, the of telecommunications can be improved by resorting available third-party networks for temporary additional until failing links are restored. this approach, some nodes must selected in advance act gateway when failure ...

For this demonstration, we will present and describe VanetMobiSim, a generator of realistic vehicular movement traces for telecommunication networks simulators. VanetMobiSim mobility description has been validated by a comparison of its traces with TSIS-CORSIM, a benchmark traffic generator in the industry. VanetMobiSim is therefore one of the few vehicularoriented mobility simulator fully vali...