Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"Multimedia communication"”.
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Scalable Predictive Coding Using Coset Codes
… a tremendous amount of research in the fields of multimedia signal processing and multimedia communication over the last decade. This dissertation addresses the problem of compression and communication of multimedia content over unreliable channels. We propose an alternative to the conventional …
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Energy-efficient wireless transmitter architecture for mobile multimedia
… Nevertheless, the average efficiency with mobile multimedia communication is decreasing due to escalating design requirements on linearity and bandwidth. Therefore there is an increasing gap between the peak and average efficiency. Furthermore, the nature of user mobility mandates reliability over …
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VLSI implementation of a massively parallel wavelet based zerotree coder for the intelligent pixel array
In the span of a few years, mobile multimedia communication has rapidly become a significant area of research and development constantly challenging boundaries on a variety of technologic fronts. Mobile video communications in particular encompasses a number of technical hurdles that generally …
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Design of the Network Multimedia File System protocol: a protocol for remote access of networked multimedia files
With multimedia communication growing in popularity, it has become important to develop techniques that will allow a multimedia application to access multimedia files from local as well as remote sites. This thesis describes the methodology used in the design of the Network Multimedia File System …
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An adaptive and reliable forward error correction mechanism for real-time video delivery from UAVs
… transmission in Unmanned Aerial Vehicles (UAVs) communications. Addressing the challenge of unreliable wireless channels, AR-FEC leverages edge computing principles at the application layer to incorporate adaptive FEC, dynamic video quality, and Unequal Error Protection (UEP). By dynamically …
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Quality of service management for multimedia communications : investigations on usability of interfaces for desktop and portable systems
Multimedia communication is now possible via the use of high bandwidth channels, and communication protocols that support Quality of Service (QoS) requests. However, these technologies often fall short of user expectations by not providing effective user interfaces that can facilitate negotiations …
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Advancing Video Communication: From WebRTC Quality Prediction to Green Applications
… and measuring user experience in real-time video communication applications. Therefore, this dissertation presents novel approaches for Quality of Experience (QoE) prediction in Web Real-Time Communication (WebRTC)-based applications through multimodal analysis of naturally available user feedback …
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Signal Processing for Joint Source -Channel Coding of Digital Images
… the problems of signal processing for image communication and restoration. Significant attention is devoted to developing novel stochastic models for images, investigating the information theoretic performance bounds for them, and designing efficient learning and inference methods for the …
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The integration of multimodality in English teaching in Indonesian junior high schools
… to adjust to literacy practices in the digital-multimedia communication environment (Ditjendikdasmen, 2018). Hence, the focus of the study is to investigate the extent to which the integration of multimodality is enacted in classroom-level practices of the English teaching and learning process, …
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An architecture for flexible multimedia group management services
Multimedia systems applications have become major research interests in both computing and telecommunications industries. In some literature, multimedia is defined as "mant media" where media is derived from medium, and a medium is a means of transporting information. It is generally accepted that …
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On the Capacity Modelling in 3G Mobile Wireless Communications Systems
… behind the introduction of the present 3G mobile communication systems such as the wideband CDMA (WCDMA). However, the rapid increase in the number of connections and demand for high-speed multimedia communication services supported is contradicting with the limited resources allocated by these …
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Design and evaluation of real-time Voice-Over-IP (VOIP) systems with high perceptual conversational quality
This research addresses real-time multimedia communication systems that can achieve high perceptual quality for their users. It focuses on the fundamental understanding of multiple quality aspects perceived and their trade-offs in the design of run-time control schemes that adapt to changing …
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Multi-user detection for multi-rate DS/CDMA systems
Wireless cellular communication is witnessing a rapid growth in market, technology and range of services. Current and future demands for wireless communication services motivate the need for handling multi-media traffic types. In a multimedia communication system, users with different and even …
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Mobility Enhancement for Digital Video Broadcast Network Via Satellite
Satellite communication systems have proven to be at the centre of delivering the much-desired high capacity, high-speed and reliable broadband and multimedia communication applications and services. With the emergence of the fifth generation (5G) system and the demand of seamless connectivity, …
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Low-bit-rate joint source-channel decoding aided wireless video communications
… unified treatment of the topic of near capacity multimedia communication systems using iterative detection aided joint source-channel decoding employing sophisticated transmission techniques. Therefore in this thesis we focus our attention not only on the source and channel coding but also on …
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Implementation of arithmetic primitives using truly deep submicron technology (TDST)
… and static (standby) power dissipation. Mobile multimedia communication and optical based technologies have rapidly become a significant area of research and development challenging a variety of technological fronts. The future emergence or 4G (4th Generation) wireless communications networks is …
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Service oriented networking for multimedia applications in broadband wireless networks
… network connectivity will let them run various multimedia applications on their wireless devices. In order to successfully deploy and operate broadband wireless networks, it is crucial to design efficient methods for supporting various services and applications in broadband wireless networks. …
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Delay-Aware Multi-Path Routing in a Multi-Hop Network: Algorithms and Applications
… real-world routing applications including multimedia communication and freight delivery. Provisioning delay-minimal (or at least delay-bounded) routing services for all traffic of an application is highly important. As a basic paradigm of networking, multi-path routing has been proven to be …