This paper presents a case study for an approach to managing Quality of Service (QoS) for real-time multimedia services by means of session reconfiguration. The key components of the proposed approach are: (1) mobilit...
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ISBN:
(纸本)9789077559000
This paper presents a case study for an approach to managing Quality of Service (QoS) for real-time multimedia services by means of session reconfiguration. The key components of the proposed approach are: (1) mobility events that stem from session mobility and terminal mobility, and affect established QoS, and (2) basic operations that are called reconfiguration primitives. Mobility events drive the session reconfiguration, which then applies reconfiguration primitives to maintain or adapt QoS. A set of the required QoS functional aspects serves as the basis for modelling generic functional network architecture, which is closely outlined. The case study which involves applying the approach in a Future Internet architecture is described in more detail. It builds on a real-network prototype that facilitates session control and the QoS management by using the Session Initiation Protocol (SIP) signalling. Demonstrated use case illustrates that QoS is maintained when a user switches from one terminal device to another.
Mobile multimedia contents have been introduced in the market and their demand is growing every day due to the increasing number of mobile devices and the possibility to watch them at any moment in any place. These mu...
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Nowadays Social networking phenomenon is gaining a significant momentum. Social Network's users are disclosing a lot of information about their relationships, profiles, preferences and interests but also an increa...
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ISBN:
(纸本)9789898425485
Nowadays Social networking phenomenon is gaining a significant momentum. Social Network's users are disclosing a lot of information about their relationships, profiles, preferences and interests but also an increasing amount of multimedia contents. The Web is being populated by Social networking Web sites which are introducing fragmentation and mining future evolutions. In this position paper we propose a concrete alternative to the current state of the art, to overcome vertical silos' aggregation and enable open, distributed and Context Aware Social networking focusing on users' privacy and data ownership.
Affective or Emotion oriented computing constitutes an emerging research field that is still in its early stages. The lack of empirical results together with the complexity that attributes emotions, subjects research ...
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The 15 papers in this special issue are extended versions of papers presented at the 2010 IEEE International conference on multimedia and Expo (ICME), held in Singapore on July 19-23, 2010. These papers cover a wide r...
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The 15 papers in this special issue are extended versions of papers presented at the 2010 IEEE International conference on multimedia and Expo (ICME), held in Singapore on July 19-23, 2010. These papers cover a wide range of topics in multimedia including user interface, content understanding, mobility, 3-D processing, storage, and forensics.
Wyner-Ziv (WZ) video coding is a particular case of distributed video coding (DVC). Although some works, with improved performance, have been made in recent years, the coding efficiency of state-of-the-art WZ codec is...
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ISBN:
(纸本)9780769543529
Wyner-Ziv (WZ) video coding is a particular case of distributed video coding (DVC). Although some works, with improved performance, have been made in recent years, the coding efficiency of state-of-the-art WZ codec is still far from that of the state-of-the-art prediction-based codec, especially for high and complex motion contents. Moreover, most reported WZ codecs have a high time delay in decoder, which hinders its practical application in real-time systems. The performance of the SI creation process based on adjacent previously decoded frames is limited by the quality of the past and the future reference frames as well as the distance and motion behavior between them. In this work, by combining coding tools developed in recent literatures on transform domain WZ coding with some newly developed modules on both encoding and decoding sides, an efficient and practical WZ video coding architecture, dubbed as Distributed video coding with Parallel zed design for Concurrent computing (DISPAC), is proposed to better the rate-distortion (RD) performance.
This book constitutes the refereed proceedings of the International conference on ICT in Teaching and Learning, ICT 2011, jointly held in Hong Kong, China, in July 2011 with the 15th Hong Kong Web Symposium. The 30 re...
ISBN:
(数字)9783642223839
ISBN:
(纸本)9783642223822
This book constitutes the refereed proceedings of the International conference on ICT in Teaching and Learning, ICT 2011, jointly held in Hong Kong, China, in July 2011 with the 15th Hong Kong Web Symposium. The 30 revised full papers presented were carefully reviewed and selected from numerous submissions. The papers present current research on innovative and effective usage of social networking, multimedia and mobile learning technologies. Topics addressed are such as: emerging pedagogies, mobile technologies, Web 2.0, social networking, bookmarking and repository communities, e-learning, mobile and distributed learning, social computing mobile learning system design and architecture semantic Web applications d-learning, e-learning, m-learning education environments privacy, risk, and security.
Power consumption is one of the most critical problems in data centers. One effective way to reduce power consumption is to consolidate the hosting workloads and shut down physical machines which become idle after con...
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This paper proposes a modified parallel turbo structure based on embedding the unequal error protection concepts in parallel concatenated convolutional codes. These concepts may be required for compressed data packets...
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