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Location-Based Services
Location-based Services (LBSs) are mobile services for providing information that has been created, compiled, selected or filtered under consideration of the users’ current locations or those of other persons or mobile devices. Typical examples are restaurant finders, buddy trackers, navigation services or applications in the areas of mobile marketing and mobile gaming. The attractiveness of LBSs is due to the fact that users are not required to enter location information manually but are automatically pinpointed and tracked. This book explains the fundamentals and operation of LBSs and gives a thorough introduction to the key technologies and organizational procedures, offering comprehens...
Personal Wireless Communications
This book constitutes the refereed proceedings of the IFIP-TC6 Eighth - ternational Conference on Personal Wireless Communications, PWC 2003. PWC 2003 is the ?agship conference of the IFIP Working Group 6.8, Mobile and Wireless Communications, and is the premier international forum for discussions between researchers, practitioners, and students interested in the symbiosis of mobile computing and wireless networks. It is a great pleasure to present the PWC 2003 technical program. This year the conference received 115 submissions from 27 countries indicating that PWC is a reference conference for worldwide researchers from the wireless and mobile community. With so many papers to choose from,...
Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks
This book shows how networking research and quality engineering can be combined to successfully manage the transmission quality when speech and video telephony is delivered in heterogeneous wireless networks. Nomadic use of services requires intelligent management of ongoing transmission, and to make the best of available resources many fundamental trade-offs must be considered. Network coverage versus throughput and reliability of a connection is one key aspect, efficiency versus robustness of signal compression is another. However, to successfully manage services, user-perceived Quality of Experience (QoE) in heterogeneous networks must be known, and the perception of quality changes must be understood. These issues are addressed in this book, in particular focusing on the perception of quality changes due to switching between diverse networks, speech and video codecs, and encoding bit rates during active calls.
Location- and Context-Awareness
This book constitutes the refereed proceedings of the Second International Workshop on Location- and Context-Awareness, LoCA 2006, held in Dublin, Ireland, in May 2006. The 18 revised full papers presented were carefully selected during two rounds of reviewing and improvement from 74 submissions. The papers are organized in topical sections on location sensing, mapping, privacy and access, context sensing, social context, representation and programming.
Talker Quality in Human and Machine Interaction
The book discusses subjective ratings of quality and preference of unknown voices and dialog partners – their likability, for example. Human natural and artificial voices are studied in passive listening and interactive scenarios. In this book, the background, state of research, and contributions to the assessment and prediction of talker quality that is constituted in voice perception and in dialog are presented. Starting from theories and empirical findings from human interaction, major results and approaches are transferred to the domain of human-computer interaction (HCI). The main objective of this book is to contribute to the evaluation of spoken interaction in humans and between humans and computers, and in particular to the quality subsequently attributed to the speaking system or person based on the listening and interactive experience. Provides a comprehensive overview of research in evaluation of speakers and dialog partners; Presents recent results on the relevance of a first passive and interactive impression; Includes human and HCI evaluation results from a communicative perspective.
Mobile Wireless Middleware, Operating Systems, and Applications
This book constitutes the thoroughly refereed proceedings of the 5th International Conference on Mobile Wireless Middleware, Operating Systems, and Applications, Mobilware 2012, held in Berlin, Germany, in November 2012. The 18 revised full papers presented were carefully reviewed and selected from numerous contributions. The papers are organized in topical sections on Internet of things and mobile sensing, mobile middleware platforms, mobile networks, systems support for mobile applications, and context awareness.
Pervasive Computing
This book constitutes the refereed proceedings of the 5th International Conference on Pervasive Computing, PERVASIVE 2007, held in Toronto, Canada in May 2007. The 21 revised full papers are organized in topical sections on reaching out, context and its application, security and privacy, understanding use, sensing, as well as finding and positioning.
Dimension-Based Quality Analysis and Prediction for Videotelephony
This book provides an in-depth investigation of the quality relevant perceptual video space in the domain of videotelephony. The author presents an extensive investigation and quality modeling of the underlying video quality dimensions and the overall quality. The author examines the underlying quality dimensions and describes a method for subjective evaluation as well as the instrumental estimation of video quality in videotelephony. The book presents a new subjective test method in the field of video quality assessment. Further, it explains the experimental examination of the underlying video quality dimensions and the subjective-based, as well as instrumental-based quality estimation. Provides an investigation of the underlying quality dimensions of video in videotelephony; Presents insights into a new subjective test method, standardized as ITU-T Rec. P.918; Includes insights into the subjective and instrumental video quality estimation.
Smart Networks
Smart Networks comprises the proceedings of Smartnet'2002, the seventh conference on Intelligence in Networks, which was sponsored by the International Federation for Information Processing (IFIP) and organized by Working Group 6.7. It was held in Saariselkä, Finland, in April 2002. The conference series closely reflects the developments in networking.
