Tamás Jursonovics

Telekom Deutschland GmbH

Content delivery networks (CDNs) are the backbone of the Internet and are key in delivering high quality video on demand (VoD), web content and file services to billions of users. CDNs usually consist of hierarchically organized content servers positioned as close to the customers as possible. CDN operators face a significant challenge when analyzi...

Content delivery networks (CDNs) are key components of high throughput, low latency services on the internet. CDN cache servers have limited storage and bandwidth and implement state-of-the-art cache admission and eviction algorithms to select the most popular and relevant content for the customers served. The aim of this study was to utilize state...

Content delivery networks (CDNs) are the backbone of the Internet and are key in delivering high quality video on demand (VoD), web content and file services to billions of users. CDNs usually consist of hierarchically organized content servers positioned as close to the customers as possible. CDN operators face a significant challenge when analyzi...

Content delivery networks (CDNs) are key components of high throughput, low latency services on the internet. CDN cache servers have limited storage and bandwidth and implement state-of-the-art cache admission and eviction algorithms to select the most popular and relevant content for the customers served. The aim of this study was to utilize state...

The evolution of mobile telecommunication networks and access bandwidth enabled operators to deliver IPTV services for mobile customers, however the existing mobile charging solutions are not effectively addressing the billing requirements of multimedia streams. This paper develops a quality based charging solution for 3GPP wireless networks, with...

The rapid development of the wireless access technologies challenged the IPTV platform operators to exploit this new medium, although the IPTV systems were designed for fixed transport, and they cannot easily accommodate to the mobile environment. Two aspect of this challenge are analyzed in this dissertation: the bandwidth allocation and packet re...

The optimal allocation of the retransmission bandwidth is essential for IPTV service providers to ensure maximal service quality. This paper highlights the relevance of the wireless transport in today’s IPTV solution and discusses how this new media affects the existing broadcast technologies. A new Markovian channel model is developed to address t...

Several methods have been developed for packet loss characterization in IP networks, typically introducing Markov models. On the one hand these techniques are performing well in the description of real time communication but on the other hand they are not able to perfectly describe the content delivery of an IPTV Solution extended with application...

A projektvezetHo sikere szempontjából egy fontos tényezHo a kommunikáció, aminek elemi és lényeges formáj a a testbeszéd, azonban ennek megértése alulértékelt a gyakorlatban. A cikkben rámutatok a testbeszéd szerepére, kiemelten a nemzetközi projektek esetében, illetve bemutatok egy gyakorlati megoldást, aminek segítségével a megértése nagymértékbe...

In this paper, we present a new streaming proxy based charging architecture for QoS differentiated charging in 3G. We give a short overview of charging concepts in next generation mobile networks and we describe the most important network attributes on which the quality depends. Our goal is to point out the importance of bursty packet loss which de...

In this paper, we present a new streaming proxy based charging architecture for QoS-differentiated charging in 3G. We describe the most important network attributes which the quality depend on. Our goal is to point out the importance of bursty packet loss which determines the quality of the multimedia streaming in contrast with the average loss rat...

In this paper we present the main differences in charging terminology between the Internet and mobile telecommunications world, than we discuss the principle requirements about accounting in mobile networks. After presenting some business charging models, we discuss our real-time charging model and give some future plans about testing and its imple...