Any performance evaluation of broadband networks requires statistical analysis and modeling of the actual network traffic. Since multimedia services and especially MPEG coded video streams are expected to be a major traffic component over these networks, modeling of such services and accurate estimation of the network resources are crucial for the reliable operation of the future telecommunicat...

From real measurements in high-speed communications networks, it was recently shown that network traffic may demonstrate properties of long-range dependency peculiar to the self-similar stochastic process. It was also shown by measurements that with increasing buffer capacity, the resulting cell loss is not reduced exponentially fast, as it is predicted by queueing theory applied to traditional...

This paper investigates the role of pitch accent information in spoken-word recognition in listeners in Fukushima, Japan, whose dialect is accentless. Previous research revealed that accentless listeners were less sensitive to pitch accent than Tokyo Japanese listeners. The present study asked whether middle-aged listeners’ use of accent information would differ from that of young listeners. 40...

The successful functioning of telecommunication networks largely depends on the effectiveness algorithms for detection and protection against overloads. article describes main differences that arise when forecasting, monitoring managing congestion at node level channel level. An algorithm detecting by estimating entropy time distributions traffic parameters is proposed. measures data sets vario...

In this article, Fifth generation mobile technology is termed 5G. It basically a standard notation, used for major phase of telecommunication other than 4G standards. After the overall success fourth (4G) communications which was based on platform named “Long Term Evolution (LTE)-Advanced standard” developed by Third Generation Partnership Project (3GPP), industry along with research department...

Introduction Encryption has been used as a method of protecting computer privacy since 1977. Secret communication plays an increasing role in organizations especially banking, industry, commerce, telecommunication etc. The basic idea of encryption is to modify the network traffic in such a way that its content can be reconstructed only by a legal recipient. This has been central to the setting ...

The Routing and Wavelength Assignment Problem deals with the routing of telecommunication traffic in all-optical networks. Extending existing algorithms, we present a memetic algorithm (MA) for the static RWA by introducing a recombination operator and a scheme for distributing the computation. Compared to previously achieved results for this problem, our MA significantly improves the solution ...

Both industry and the academic world are becoming more and more interested in techniques to model, analyse, and control complex systems that contain both analog and logical components. Such systems are called hybrid systems. Examples of hybrid systems are telecommunication networks, flexible production systems, parallel processing systems, traffic networks, and so on. In this paper we present a...

The bottleneck in many telecommunication systems has often been modeled by an M/G/1 queueing system with priorities. While the probability generating function for the occupancy distribution of each traffic classes can be readily obtained, the occupancy distributions have been obtainable only rarely. However, the occupancy distribution is of great importance, particularly in those cases where th...