The only integrative approach to chaos and random fractal theory Chaos and random fractal
theory are two of the most important theories developed for data analysis. Until now, there …

This paper examines the channel holding time probability distribution in different public
telephony systems. The systems analyzed are public access mobile radio under its two …

The static frequency allocation in wireless communication became a major concern for
efficient spectrum utilization. Also due to spatio-temporal variation, some of the frequency …

In this paper, we derive the distribution of the channel-holding time when both cell-residence
and call-holding times are phase-type distributed. Furthermore, the distribution of the …

In cognitive radio networks (CRNs), spectrum handoff probability and expected number of
spectrum handoffs are important parameters in the evaluation of network performance and …

In this paper, we introduce a unified approach for the adaptive control of 3G mobile networks
in order to improve both quality of service (QoS) for mobile subscribers and to increase …

This paper is focused on the statistical analysis of the call arrival process in channels of
mobile telephony access networks. The approach is fully empirical, and is based on actual …

This paper provides recent empirical traffic data and observations of telephony traffic
patterns in mobile and IP telephony. These are compared with old telephony patterns from …

In this paper, we introduce a framework for the adaptive control of universal mobile
telecommunications system (UMTS) networks in order to improve bandwidth utilization of the …

Mobile data services are widely available to GSM subscribers already for some years. From
these, the WAP service was designed to access hypertext content from handheld terminals …