Real-time Systems' Quality of Service - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Real-time Systems' Quality of Service write by Roman Gumzej. This book was released on 2010-01-10. Real-time Systems' Quality of Service available in PDF, EPUB and Kindle. "Real-time Systems’ Quality of Service" examines the attainability of efficiency, economy, and ease of use, which make up the quality of service of technologically advanced products. "Real-time Systems’ Quality of Service" reviews the state of the art in quality of service evaluation for real-time systems. It gives a classification of the relevant parameters for quality of service evaluation and also determines the critical points in the design and development process of real-time systems – where performance criteria should be applied or checked. Then, software development and certification standards are assessed, and finally the authors elaborate on how the suggested criteria should be applied to the design, development, and certification process of real-time systems. "Real-time Systems’ Quality of Service" will guide researchers and postgraduates in embedded and real-time systems through the process of introducing quality of service parameters into real-time systems.
Quality of Service in IP Networks
Quality of Service in IP Networks - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Quality of Service in IP Networks write by Grenville Armitage. This book was released on 2000. Quality of Service in IP Networks available in PDF, EPUB and Kindle. Quality of Service (QoS) is a standards effort to provide consistent levels of service despite delivery problems. Providing students with an understanding of the technologies and techniques that will enable Internet QoS, this book is for courses in network management.
Soft Real-Time Systems: Predictability vs. Efficiency
Soft Real-Time Systems: Predictability vs. Efficiency - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Soft Real-Time Systems: Predictability vs. Efficiency write by Giorgio C Buttazzo. This book was released on 2006-07-02. Soft Real-Time Systems: Predictability vs. Efficiency available in PDF, EPUB and Kindle. Hard real-time systems are very predictable, but not sufficiently flexible to adapt to dynamic situations. They are built under pessimistic assumptions to cope with worst-case scenarios, so they often waste resources. Soft real-time systems are built to reduce resource consumption, tolerate overloads and adapt to system changes. They are also more suited to novel applications of real-time technology, such as multimedia systems, monitoring apparatuses, telecommunication networks, mobile robotics, virtual reality, and interactive computer games. This unique monograph provides concrete methods for building flexible, predictable soft real-time systems, in order to optimize resources and reduce costs. It is an invaluable reference for developers, as well as researchers and students in Computer Science.
Quantitative Modeling and Analysis of Service-oriented Real-time Systems Using Interval Probabilistic Timed Automata
Quantitative Modeling and Analysis of Service-oriented Real-time Systems Using Interval Probabilistic Timed Automata - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Quantitative Modeling and Analysis of Service-oriented Real-time Systems Using Interval Probabilistic Timed Automata write by Krause, Christian. This book was released on 2012. Quantitative Modeling and Analysis of Service-oriented Real-time Systems Using Interval Probabilistic Timed Automata available in PDF, EPUB and Kindle. One of the key challenges in service-oriented systems engineering is the prediction and assurance of non-functional properties, such as the reliability and the availability of composite interorganizational services. Such systems are often characterized by a variety of inherent uncertainties, which must be addressed in the modeling and the analysis approach. The different relevant types of uncertainties can be categorized into (1) epistemic uncertainties due to incomplete knowledge and (2) randomization as explicitly used in protocols or as a result of physical processes. In this report, we study a probabilistic timed model which allows us to quantitatively reason about nonfunctional properties for a restricted class of service-oriented real-time systems using formal methods. To properly motivate the choice for the used approach, we devise a requirements catalogue for the modeling and the analysis of probabilistic real-time systems with uncertainties and provide evidence that the uncertainties of type (1) and (2) in the targeted systems have a major impact on the used models and require distinguished analysis approaches. The formal model we use in this report are Interval Probabilistic Timed Automata (IPTA). Based on the outlined requirements, we give evidence that this model provides both enough expressiveness for a realistic and modular specifiation of the targeted class of systems, and suitable formal methods for analyzing properties, such as safety and reliability properties in a quantitative manner. As technical means for the quantitative analysis, we build on probabilistic model checking, specifically on probabilistic time-bounded reachability analysis and computation of expected reachability rewards and costs. To carry out the quantitative analysis using probabilistic model checking, we developed an extension of the Prism tool for modeling and analyzing IPTA. Our extension of Prism introduces a means for modeling probabilistic uncertainty in the form of probability intervals, as required for IPTA. For analyzing IPTA, our Prism extension moreover adds support for probabilistic reachability checking and computation of expected rewards and costs. We discuss the performance of our extended version of Prism and compare the interval-based IPTA approach to models with fixed probabilities.
Quality of Service in Heterogeneous Networks
Quality of Service in Heterogeneous Networks - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Quality of Service in Heterogeneous Networks write by Novella Bartolini. This book was released on 2009-11-09. Quality of Service in Heterogeneous Networks available in PDF, EPUB and Kindle. This volume presents the proceedings of the 6th International ICST Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness and of the Third International ICST Workshop on Advanced Architectures and Algorithms for Internet DElivery and Applications. Both events were held in Las Palmas de Gran Canaria in November 2009. To each of these events is devoted a specific part of the volume. The first part is dedicated to the proceedings of ICST QShine 2009. The first four chapters deal with new issues concerning the quality of service in IP-based telephony and multimedia. A second set of four chapters addresses some important research problems in mul- hop wireless networks, with a special emphasis on the problems of routing. The following three papers deal with recent advances in the field of data mana- ment and area coverage in sensor networks, while a fourth set of chapters deals with mobility and context-aware services. The fifth set of chapters contains new works in the area of Internet delivery and switching systems. The following chapters of the QShine part of the volume are devoted to papers in the areas of resource management in wireless networks, overlay, P2P and SOA arc- tectures. Some works also deal with the optimization of quality of service and energy consumption in WLAN and sensor networks and on the design of a mobility support in mesh networks.
