Real Time Systems Quality Of Service PDF Download
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Author | : Roman Gumzej |
Publisher | : Springer Science & Business Media |
Total Pages | : 145 |
Release | : 2010-01-10 |
Genre | : Technology & Engineering |
ISBN | : 1848828489 |
Download Real-time Systems' Quality of Service Book 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.
Author | : Giorgio C Buttazzo |
Publisher | : Springer Science & Business Media |
Total Pages | : 281 |
Release | : 2006-07-02 |
Genre | : Computers |
ISBN | : 0387281479 |
Download Soft Real-Time Systems: Predictability vs. Efficiency Book 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.
Author | : Krause, Christian |
Publisher | : Universitätsverlag Potsdam |
Total Pages | : 54 |
Release | : 2012 |
Genre | : Computers |
ISBN | : 3869561718 |
Download Quantitative Modeling and Analysis of Service-oriented Real-time Systems Using Interval Probabilistic Timed Automata Book 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.
Author | : Novella Bartolini |
Publisher | : Springer Science & Business Media |
Total Pages | : 809 |
Release | : 2009-11-09 |
Genre | : Computers |
ISBN | : 3642106242 |
Download Quality of Service in Heterogeneous Networks Book 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.
Author | : Behnaz Ranjbar |
Publisher | : Springer Nature |
Total Pages | : 205 |
Release | : 2023-10-28 |
Genre | : Technology & Engineering |
ISBN | : 3031389603 |
Download Quality-of-Service Aware Design and Management of Embedded Mixed-Criticality Systems Book in PDF, ePub and Kindle
This book addresses the challenges associated with efficient Mixed-Criticality (MC) system design. We focus on application analysis through execution time analysis and task scheduling analysis in order to execute more low-criticality tasks in the system, i.e., improving the Quality-of-Service (QoS), while guaranteeing the correct execution of high-criticality tasks. Further, this book addresses the challenge of enhancing QoS using parallelism in multi-processor hardware platforms.
Author | : Seyed Morteza Babamir |
Publisher | : IntechOpen |
Total Pages | : 350 |
Release | : 2012-04-11 |
Genre | : Computers |
ISBN | : 9789535105107 |
Download Real-Time Systems, Architecture, Scheduling, and Application Book in PDF, ePub and Kindle
This book is a rich text for introducing diverse aspects of real-time systems including architecture, specification and verification, scheduling and real world applications. It is useful for advanced graduate students and researchers in a wide range of disciplines impacted by embedded computing and software. Since the book covers the most recent advances in real-time systems and communications networks, it serves as a vehicle for technology transition within the real-time systems community of systems architects, designers, technologists, and system analysts. Real-time applications are used in daily operations, such as engine and break mechanisms in cars, traffic light and air-traffic control and heart beat and blood pressure monitoring. This book includes 15 chapters arranged in 4 sections, Architecture (chapters 1-4), Specification and Verification (chapters 5-6), Scheduling (chapters 7-9) and Real word applications (chapters 10-15).
Author | : Klara Nahrstedt |
Publisher | : Morgan & Claypool Publishers |
Total Pages | : 179 |
Release | : 2012 |
Genre | : Computers |
ISBN | : 1608457311 |
Download Quality of Service in Wireless Networks Over Unlicensed Spectrum Book in PDF, ePub and Kindle
This Synthesis Lecture presents a discussion of Quality of Service (QoS) in wireless networks over unlicensed spectrum. The topic is presented from the point of view of protocols for wireless networks (e.g., 802.11) rather than the physical layer point of view usually discussed for cellular networks in the licensed wireless spectrum. A large number of mobile multimedia wireless applications are being deployed over WiFi (IEEE 802.11) and Bluetooth wireless networks and the number will increase in the future as more phones, tablets, and laptops are equipped with these unlicensed spectrum wireless interfaces. Achieving QoS objectives in wireless networks is challenging due to limited wireless resources, wireless nodes interference, wireless shared media, node mobility, and diverse topologies. The author presents the QoS problem as (1) an optimization problem with different constraints coming from the interference, mobility, and wireless resource constraints and (2) an algorithmic problem with fundamental algorithmic functions within wireless resource management and protocols. Table of Contents: Preface / Basics of Quality of Service in Wireless Networks / QoS-Aware Resource Allocation / Bandwidth Management / Delay Management / Routing / Acknowledgment / References / Author Biography
Author | : Rajib Mall |
Publisher | : Pearson Education India |
Total Pages | : 248 |
Release | : 2009-05 |
Genre | : Computers |
ISBN | : 9788131700693 |
Download Real-Time Systems Book in PDF, ePub and Kindle
The presence and use of real-time systems is becoming increasingly common. Examples of such systems range from nuclear reactors, to automotive controllers, and also entertainment software such as games and graphics animation. The growing importance of rea.
Author | : Lars Wolf |
Publisher | : Springer Science & Business Media |
Total Pages | : 423 |
Release | : 2001-05-30 |
Genre | : Business & Economics |
ISBN | : 354042217X |
Download Quality of Service - IWQoS 2001 Book in PDF, ePub and Kindle
This book constitutes the refereed proceedings of the 9th International Workshop on Quality of Service, IWQoS 2001, held in Karlsruhe, Germany, in June 2001. The 24 revised full papers presented together with six short papers and two abstracts of invited contributions were carefully reviewed and selected from a total of close to 150 submissions. The papers are organized in topical sections on provisioning and pricing, systems QoS, routing, TCP related issues, wireless and mobile networking, aggregation and active networks based QoS, scheduling and dropping, and scheduling and admission control.
Author | : Bruce Powel Douglass |
Publisher | : Elsevier |
Total Pages | : 433 |
Release | : 2011-04-01 |
Genre | : Business & Economics |
ISBN | : 0080492231 |
Download Real Time UML Workshop for Embedded Systems Book in PDF, ePub and Kindle
This practical new book provides much-needed, practical, hands-on experience capturing analysis and design in UML. It holds the hands of engineers making the difficult leap from developing in C to the higher-level and more robust Unified Modeling Language, thereby supporting professional development for engineers looking to broaden their skill-sets in order to become more saleable in the job market. It provides a laboratory environment through a series of progressively more complex exercises that act as building blocks, illustrating the various aspects of UML and its application to real-time and embedded systems. With its focus on gaining proficiency, it goes a significant step beyond basic UML overviews, providing both comprehensive methodology and the best level of supporting exercises available on the market. Each exercise has a matching solution which is thoroughly explained step-by-step in the back of the book. The techniques used to solve these problems come from the author’s decades of experience designing and constructing real-time systems. After the exercises have been successfully completed, the book will act as a desk reference for engineers, reminding them of how many of the problems they face in their designs can be solved. Tutorial style text with keen focus on in-depth presentation and solution of real-world example problems Highly popular, respected and experienced author