Load Modelling and Generation in IP-based Networks


Book Description

Andrey Kolesnikov proposes an interesting unified approach and corresponding tools for modelling and effective generation of realistic workloads and traffic in networks. As a result of the general applicability in IP-based networks, the outcome of his research can be used for different service interfaces in combination with various workload models and modelling techniques. His work is both broad and deep in focus in order to demonstrate the application of the proposed approach in different realistic scenarios.




Measurement, Modelling, and Evaluation of Computing Systems and Dependability in Fault Tolerance


Book Description

This book constitutes the refereed proceedings of the 15th International GI/ITG Conference on "Measurement, Modelling and Evaluation of Computing Systems" and "Dependability and Fault Tolerance", held in Essen, Germany, in March 2010. The 19 revised full papers presented together with 5 tool papers and 2 invited lectures were carefully reviewed and selected from 42 initial submissions. The papers cover all aspects of performance and dependability evaluation of systems including networks, computer architectures, distributed systems, software, fault-tolerant and secure systems.




Mobile Networks


Book Description

The growth in the use of mobile networks has come mainly with the third generation systems and voice traffic. With the current third generation and the arrival of the 4G, the number of mobile users in the world will exceed the number of landlines users. Audio and video streaming have had a significant increase, parallel to the requirements of bandwidth and quality of service demanded by those applications. Mobile networks require that the applications and protocols that have worked successfully in fixed networks can be used with the same level of quality in mobile scenarios. Until the third generation of mobile networks, the need to ensure reliable handovers was still an important issue. On the eve of a new generation of access networks (4G) and increased connectivity between networks of different characteristics commonly called hybrid (satellite, ad-hoc, sensors, wired, WIMAX, LAN, etc.), it is necessary to transfer mechanisms of mobility to future generations of networks. In order to achieve this, it is essential to carry out a comprehensive evaluation of the performance of current protocols and the diverse topologies to suit the new mobility conditions.




The GSM Evolution


Book Description

Der Autor erklärt Ihnen die Entwicklung von GSM/GPRS-Netzen zu GSM/EDGE Radio Access Networks (GERAN) und erläutert den GERAN-Standard. - GSM (Global System for Mobile Communications) ist das verbreitetste digitale zellulare Netzwerk weltweit; GSM-Netzwerke bieten einen Datenübertragungsdienst mit begrenzter Datenrate (9,6 kbit/s) - GPRS (General Packet Radio Service) ermöglicht effiziente Internet-Dienste mit einer Übertragungsrate von bis zu 115 kbit/s, wobei mehrere Funkkanäle einem oder mehreren Benutzern zugewiesen werden können - GERAN (GSM EDGE Radio Access Network), eine weiterentwickelte Version von EDGE (Enhanced Data Rates for Global Evolution), bietet Datenraten bis zu 473 kbit/s - das Buch bespricht die Grundlagen von GPRS und EGPRS (Funkschnittstelle sowie System- und Protokollarchitektur) - beschreibt ausführlich GPRS-, EDGE-, und GERAN-Netzwerke (einschließlich Modulations- und Codierungstechniken) - diskutiert die Leistungsfähigkeit von GSM/GPRS und GERAN




Interactive Multimedia on Next Generation Networks


Book Description

This book constitutes the refereed proceedings of the First International Workshop on Multimedia Interactive Protocols and Systems, MIPS 2003, held in Napoli, Italy in November 2003. MIPS continues the form IDMS/PROMS Workshop series. The 34 revised full papers presented were carefully reviewed and selected from more than 130 submissions. The papers are organized in topical sections on wireless multimedia systems, communication protocols for multimedia, scheduling, caching, quality of service architectures, novel communication services, middleware, infrastructure, IP telephony, multimedia applications, and encoding.




Resource Allocation in Next Generation Wireless Networks


Book Description

Next generation wireless and mobile communication systems are rapidly evolving to satisfy the demands of various network users. Due to the great success and enormous impact of IP networks, high-speed transmission is now possible for both indoor and outdoor wireless systems, internet access and web browsing have become the ruling paradigm for next generation system. It is envisioned that new generation wireless networks and hand-held terminals will support a wide variety of multimedia services such as multimedia web browsing, video and news on demand, mobile office system, stock market information, and so on, to mobile users anywhere, anytime in an uninterrupted and seamless way with low-powered handsets. The characteristics of wireless links, as well as the desire to maintain connectivity while on the move, offer significant challenges to provisioning quality of service and the related performance is of central interest. Since the resources (such as time, frequency and code) in the wireless segments of such networks are very limited, over-dimensioning the network resource is equivalent to poor capital investment, while congestion at busy hours could mean lost calls and lost revenues. It is therefore critical for wireless network designers to utilise these resources efficiently and effectively. In response to the above demand for next generation wireless and mobile communication systems, this book aims at providing a timely and concise reference of the current activities and findings in the relevant technical fields. The primary goal is to address the key technical issues pertaining to the integrated new systems and present novel technical contributions. The book contains 14 invited chapters from prominent researchers working in this area around the world.




Fourth-Generation Wireless Networks: Applications and Innovations


Book Description

Fourth-Generation Wireless Networks: Applications and Innovations presents a comprehensive collection of recent findings in access technologies useful in the architecture of wireless networks.




Photonische Netze


Book Description







High-Performance Backbone Network Technology


Book Description

Compiling the most influential papers from the IEICE Transactions in Communications, High-Performance Backbone Network Technology examines critical breakthroughs in the design and provision of effective public service networks in areas including traffic control, telephone service, real-time video transfer, voice and image transmission for a content delivery network (CDN), and Internet access. The contributors explore system structures, experimental prototypes, and field trials that herald the development of new IP networks that offer quality-of-service (QoS), as well as enhanced security, reliability, and function. Offers many hints and guidelines for future research in IP and photonic backbone network technologies