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Providing Quality of Service (QoS) in the Internet is currently the most ch- lenging topic for researchers, industry and network providers. Now, the only available service in the Internet is the best e?ort service, which assumes tra?c is processed as quickly as possible, but there is no guarantee as to timely or actual delivery. On the other hand, there is pressure to o?er new applications in the Internet (like VoIP, videoconferencing, on-line games, e-commerce, etc. ) but this requires some packet transfer guarantees from the network (e. g. , low packet transfer delay, low packet losses). To meet these requirements, new architectures for providing IP- based QoS in the Internet are proposed: Integrated Services (IntServ) and Di?erentiated Services (Di?Serv). However, these architectures need some enhancements to provide adequate solutions for resource mana- ment, signaling, tra?c engineering, tra?c handling mechanisms, etc. In the European research community, a number of projects inside the Fifth Framework Programme were addressed solving the above issues; among these AQUILA (Adaptive Resource Control for QoS Using an IP-Based Layered - chitecture), CADENUS (Creation and Deployment of End-User Services in P- mium IP Networks), and TEQUILA (Tra?c Engineering for Quality of Service in the Internet at Large Scale) are excellent examples. The main achievements from these projects are the prototypes for ?xed QoS IP networks. The extension of these proposed solutions into the wireless environment is the next step.
This book constitutes the refereed proceedings of the Third International Workshop on Quality of Service in Multiservice IP Networks, QoS-IP 2005, held in Catania, Italy in February 2005. The 50 revised full papers presented were carefully reviewed and selected from around 100 submissions. The papers are organized in topical sections on analytical models, traffic characterization, MPLS failure and restoration, network planning and dimensioning, DiffServ and InfServ, routing, software routers, network architectures for QoS provisioning, multiservice in wireless networks, TCP in special environments, and scheduling.
From the basics to the most advanced quality of service (QoS) concepts, this all encompassing, first-of-its-kind book offers an in-depth understanding of the latest technical issues raised by the emergence of new types, classes and qualities of Internet services. The book provides end-to-end QoS guidance for real time multimedia communications over the Internet. It offers you a multiplicity of hands-on examples and simulation script support, and shows you where and when it is preferable to use these techniques for QoS support in networks and Internet traffic with widely varying characteristics and demand profiles.This practical resource discusses key standards and protocols, including real-time transport, resource reservation, and integrated and differentiated service models, policy based management, and mobile/wireless QoS. The book features numerous examples, simulation results and graphs that illustrate important concepts, and pseudo codes are used to explain algorithms. Case studies, basedon freely available Linux/FreeBSD systems, are presented to show you how to build networks supporting Quality of Service. Online support material including presentation foils, lab exercises and additional exercises are available to text adoptors.
The new technology and system communication advances are being employed in any system, being more complex. The system dependability considers the technical complexity, size, and interdependency of the system. The stochastic characteristic together with the complexity of the systems as dependability requires to be under control the Reliability, Availability, Maintainability, and Safety (RAMS). The dependability contemplates, therefore, the faults/failures, downtimes, stoppages, worker errors, etc. Dependability also refers to emergent properties, i.e., properties generated indirectly from other systems by the system analyzed. Dependability, understood as general description of system performance, requires advanced analytics that are considered in this book. Dependability management and engineering are covered with case studies and best practices. The diversity of the issues will be covered from algorithms, mathematical models, and software engineering, by design methodologies and technical or practical solutions. This book intends to provide the reader with a comprehensive overview of the current state of the art, case studies, hardware and software solutions, analytics, and data science in dependability engineering.
This book constitutes the refereed proceedings of the Second International Workshop on Quality of Service in Multiservice IP Networks, QoS-IP 2003, held in Milano, Italy in February 2003. The 53 revised full papers presented together with an invited paper were carefully reviewed and selected from 97 submissions. The papers are organized in topical sections on analytical models, QoS routing, measurements and experimental results, QoS below IP, end-to-end QoS in IP networks, QoS multicast, optical networks, reconfigurable protocols and networks, provision of multimedia services, QoS in multidomain networks, congestion and admission control, and architectures and protocols for QoS provision.
"This book highlights and discusses the underlying QoS issues that arise in the delivery of real-time multimedia services over wireless networks"--Provided by publisher.
This volume of the Lecture Notes in Computer Science series contains the set of papers accepted for publication at the colocated QofIS/ICQT 2002 workshops, i.e. the 3rd COST Action 263 International Workshop on Quality of future Internet Services (QofIS) and the 2nd International Workshop on Internet Charging and QoS Technology (ICQT), both of which took place at the ETH Zric h, Switzerland, hosted by the Computer Engineering and Networking Laboratory, TIK. QofIS 2002 was the third in a series of highly successful technical workshops and meetings on Internet services within the framework of the COST Action 263 Q uality of future Internet Services , following previous events in Berlin, Germany in 2000 and in Coimbra, Portugal in 2001. ICQT 2002 was the follow-up to a vivid and extremely well-attended workshop on Internet economics and charging technology that took place within the framework of the Annual Meeting of the German Society for Computer Science (GI) and the Austrian Computer Society in 2001 in Vienna, Austria.
& • Presents a simple yet practical approach to achieve realistic multimedia networking simulations by simulating applications. & & • In-depth coverage of recent research results in the area of multimedia transmission over QoS-enabled networks. & & • Straight from the source, Authors from the federally funded IMSC research program at USC.
This book constitutes the thoroughly refereed post-proceedings of the International Conference on Information Networking, ICOIN 2003, held at Cheju Island, Korea in February 2003. The 100 revised full papers presented were carefully selected during two rounds of reviewing and revision. The papers are organized in topical sections on high-speed network technologies, enhanced Internet protocols, QoS in the Internet, mobile Internet, network security, network management, and network performance.