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 9 of 9 for “"Variable bit rate (VBR)"”.
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Forensic Reconstruction of Fragmented Variable Bitrate MP3 files
… by file carving. In this research we focus on Variable Bit Rate (VBR) MP3 files. MP3 is one of the most widely used file formats for storing audio data. We develop a technique which uses the MP3 file structure information to improve the performance of file carvers in reconstructing fragmented …
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Optimal Link Utilization and Enhanced Quality of Service Using Dynamic Bandwidth Reservation for Pre-recorded Video
… the broadband Internet. The bursty nature of Variable-Bit-Rate (VBR) compressed video (such as MPEG) poses some important issues for video delivery over high-speed networks due to its significant bit rate variation over multiple time scales. However, sufficient quality of service (QoS) …
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Using fuzzy logic for congestion control at the user-network interface of asynchronous transfer mode networks
… are designed to police the sustainable cell rate of Variable Bit Rate (VBR) traffic sources, and take the Sustainable Cell Rate and Peak Cell Rate as input Parameters. The first two controllers require an additional parameter called the Burst Threshold, while the third controller takes the …
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Studies of Dynamic Bandwidth Allocation for Real-Time VBR Video Applications
Variable bit rate (VBR) compressed video traffic, such as live video news, is expected to account for a large portion of traffic in future integrated networks. This real-time video traffic has strict delay and loss requirements, and exhibits burstiness over multiple time scales, thus imposing a …
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VBR MPEG traffic: characterisation, modelling and support over ATM networks
Variable Bit Rate (VBR) MPEG traffic is expected to be one of the widely used traffic sources for high speed networks, along with voice and data traffic. Encoded video traffic is a correlated and a bursty traffic with high value of peak to mean ratio (burstiness). For efficient traffic management …
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Renegotiation based dynamic bandwidth allocation for selfsimilar VBR traffic
… based dynamic resource allocation method for variable bit rate (VBR) traffic is presented. First, pros and cons of available off-line methods that are used to estimate selfsimilarity level (represented by Hurst parameter) of a VBR traffic trace are empirically investigated, and criteria to …
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QoS provisioning in multimedia streaming
… addition, compressed video streams typically exhibit highly variable bit rates as well as long range dependence properties, thus exacerbating the challenge in meeting the stringent QoS requirements of multimedia streaming with high network utilization. Dynamic bandwidth allocation in which video …
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Novel techniques in large scaleable ATM switches
… discussion of an abstract ATM switch which illustrates the components of an ATM switch that automatically scale with increasing switch size (the Input Modules and Output Modules) and those that do not (the Connection Admission Control and Switch Management systems as well as the Cell Switch …
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multimedia transmission over wireless networks: performance analysis and optimal resource allocation
… and identify efficient resource allocation strategies.</p> <p>Motivated by these considerations, in the first part of the thesis, performance of hierarchical modulation-based multimedia transmissions is analyzed. Unequal error protection (UEP) of data transmission using hierarchical quadrature …