Описание: This book sets out to provide state-of-the art advice on Quality of Service (QoS) and Quality of Experience (QoE) in Universal Mobile Telecommunications (UMTS) networks. The approach is comprehensive, tackling mobile service planning, provisioning, performance monitoring and optimization issues in a single, accessible resource.
Автор: Barbara Paech; Colette Rolland Название: Requirements Engineering: Foundation for Software Quality ISBN: 3540690603 ISBN-13(EAN): 9783540690603 Издательство: Springer Рейтинг: Цена: 9083.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Constitutes the refereed proceedings of the 14th International Working Conference on Requirements Engineering: Foundation for Software Quality, REFSQ 2008, held in Montpellier, France, in June 2008. This book features 17 revised full papers which are organized in thematic sections on fitness of RE, requirements elicitation, and innovative systems.
Автор: Crawley Gerard M Название: Fossil Fuels: Current Status And Future Directions ISBN: 9814699977 ISBN-13(EAN): 9789814699976 Издательство: World Scientific Publishing Рейтинг: Цена: 19008.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Concerns over energy resources and the environmental impact of energy use will continue to be part of the polical agenda across the globe. World Scientific's unique series of books on Current Energy Issues is intended, in part, as an expansion and update of the material contained in the World Scientific Handbook of Energy but in part each volume will focus on related energy resources or issues that contain a broader range of topics plus more explanatory text than was possible in the Handbook. The authors will also take the opportunity to update the data presented in the Handbook since in many cases the field is rapidly changing.
The Fossil Fuels volume focuses on the main fossil resources, viz. coal, oil and natural gas. Coal is still an extremely important resource especially for electricity production around the world and the book discussed methods for making coal a cleaner resource, including carbon sequestration. There has been a rapid change in the mix of fossil fuels mainly because of hydraulic fracturing which enables oil and gas to be extracted from previously inaccessible formations. The book describes this changing situation including the precautions required to make the production of these fuels safe and environmentally benign. Alternative fossil fuels such as methane hydrates are also discussed.
Автор: Wang Название: QoE Management in Wireless Networks ISBN: 3319424521 ISBN-13(EAN): 9783319424521 Издательство: Springer Рейтинг: Цена: 7685.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
This SpringerBrief presents research results on QoE management schemes for mobile services, including user services, and resource allocation. Along with a review of the research literature, it offers a data-driven architecture for personalized QoE management in wireless networks. The primary focus is on introducing efficient personalized character extraction mechanisms, e.g., context-aware Bayesian graph model, and cooperative QoE management mechanisms. Moreover, in order to demonstrate in the effectiveness of the QoE model, a QoE measurement platform is described and its collected data examined. The brief concludes with a discussion of future research directions.
The example mechanisms and the data-driven architecture provide useful insights into the designs of QoE management, and motivate a new line of thinking for users' satisfaction in future wireless networks.
Автор: Muhammad Sajid Mushtaq Название: Quality of Experience Paradigm in Multimedia Services ISBN: 1785481096 ISBN-13(EAN): 9781785481093 Издательство: Elsevier Science Рейтинг: Цена: 19875.00 р. Наличие на складе: Поставка под заказ.
Описание:
The analysis of QoE is not an easy task, especially for multimedia services, because all the factors (technical and non-technical) that directly or indirectly influence the user-perceived quality have to be considered.
This book describes different methods to investigate users' QoE from the viewpoint of technical and non-technical parameters using multimedia services. It discusses the subjective methods for both controlled and uncontrolled environments. Collected datasets are used to analyze users' profiles, which sheds light on key factors to help network service providers understand end-users' behavior and expectations. Important adaptive video streaming technologies are discussed that run on unmanaged networks to achieve certain QoS features.
The authors present a scheduling method to allocate resources to the end-user based on users' QoE and optimizes the power efficiency of users' device for LTE-A. Lastly, two key aspects of 5G networks are presented: QoE using multimedia services (VoIP and video), and power-saving model for mobile device and virtual base station.
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Features two proven methods to collect datasets for assessing the user's QoE
Investigates client-based HTTP rate adaptive video streaming algorithms over TCP protocol to regulate the user's QoE
Discusses VoIP service and focuses on a QoE driven downlink scheduling method for LTE-A technology
Introduces the concept of 'quality of experience' presenting all parameters which directly or indirectly influence the user's satisfaction within two well-used Internet services, multimedia OTT streaming and Voice over IP
Автор: Roel Wieringa; Anne Persson Название: Requirements Engineering: Foundation for Software Quality ISBN: 3642141919 ISBN-13(EAN): 9783642141911 Издательство: Springer Цена: 9781.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Автор: Gaisser Thomas K Et Al Название: Neutrino Astronomy: Current Status, Future Prospects ISBN: 9814759406 ISBN-13(EAN): 9789814759403 Издательство: World Scientific Publishing Рейтинг: Цена: 14256.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This review volume is motivated by the recent discovery of high-energy astrophysical neutrinos by IceCube.
Автор: Martin Glinz; Patrick Heymans Название: Requirements Engineering: Foundation for Software Quality ISBN: 3642020496 ISBN-13(EAN): 9783642020490 Издательство: Springer Рейтинг: Цена: 9781.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Constitutes the refereed proceedings of the 15th International Working Conference on Requirements Engineering: Foundation for Software Quality, REFSQ 2009, held in Amsterdam, The Netherlands, in June 2009.
Описание: Quality Function Deployment (QFD) is a method for satisfying customers by translating their demands into design targets and quality assurance points. For a thorough "how-to" on the implementation of QFD, we went directly to the source -- Yoji Akao, the creator of QFD and one of the foremost leaders of the Japanese Total Quality Control movement. In this unprecedented book he explains the concepts and methods of this remarkable systems engineering approach. Filled with case studies, detailed charts, and over 100 diagrams, this book is a complete reference tool for QFD implementation. It includes- * Use of the demanded quality deployment chart. * Using and promoting quality charts. * Using quality control process charts: QFD at the pre-production. * Quality deployment and reliability deployment. * Quality development in the construction industry. * QFD for the service industry. * QFD for software development.
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