Journal ArticleDOI
Real-time traffic transmission over the Internet
Marco Furini,Don Towsley +1 more
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TLDR
A new BAM is proposed that uses less bandwidth than the peak rate BAM, while providing the same service and several frame dropping mechanisms are introduced that further reduce bandwidth consumption subject to a QoS constraint when coupled with the above BAM.Abstract:
Multimedia applications require the transmission of real-time streams over a network. These streams often exhibit variable bandwidth requirements, and require high bandwidths and guarantees from the network. This creates problems when such streams are delivered over the Internet. To solve these problems, recently, a small set of differentiated services has been introduced. Among these, Premium Service is suitable for transmitting real-time stored stream (full knowledge of the stream characteristics). It uses a bandwidth allocation mechanism (BAM) based on the stream peak rate. Due to the variable bandwidth requirement, the peak rate BAM can waste large amount of bandwidth. In this paper we propose a new BAM that uses less bandwidth than the peak rate BAM, while providing the same service. Our BAM does not affect the real-time stream quality of service (QoS) and does not require any modification to the Premium Service Architecture. We also introduce several frame dropping mechanisms that further reduce bandwidth consumption subject to a QoS constraint when coupled with the above BAM. The proposed BAM and the dropping mechanisms are evaluated using Motion JPEG and MPEG videos and are shown to be effective in reducing bandwidth requirements. Further, since VCR operations are very useful in video streaming, we propose a mechanism that introduces these operations in our BAM. Through simulations we show the effectiveness of this mechanism.read more
Citations
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Patent
Media transrating over a bandwidth-limited network
Gurpratap Virdi,Jeffrey A. Davis +1 more
TL;DR: In this article, a transrate manager on a host computer determines if there is a limitation in network bandwidth and controls the bit-rate of streaming media content accordingly, by excluding types of video frames from the video content and then reinserting excluded video frames back into the streaming video content once the network has recovered.
Patent
Flow control for media streaming
TL;DR: In this paper, a client device receives streaming content from a host device (102) and the streaming content is placed in one or more buffers (128) prior to processing, and monitoring as to the capacity and fullness of the buffers is performed at the client device and information is sent to the host device.
Journal ArticleDOI
Contention Reduction in Core Optical Packet Switches Through Electronic Traffic Smoothing and Scheduling at the Network Edge
TL;DR: A contention-aware packet-scheduling scheme for slotted optical packet switching (OPS) networks is proposed, which employs edge-traffic shaping to reduce contention, coupled with a modified type of renegotiated service incorporating rate prediction.
Proceedings ArticleDOI
End-to-end QoE Optimization Through Overlay Network Deployment
TL;DR: A detailed overview of the end-to-end architecture together with representative experimental results which comprehensively demonstrate the overlay network's ability to optimize the QoE are given.
Journal ArticleDOI
An Energy-Efficient Coarse-Grained Reconfigurable Processing Unit for Multiple-Standard Video Decoding
TL;DR: A coarse-grained reconfigurable processing unit (RPU) consisting of 16 ×16 multi-functional processing elements (PEs) interconnected by an area-efficient line-switched mesh connect (LSMC) routing is proposed to reduce the implementation overhead and the energy dissipation spent on fast reconfiguration.
References
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Yao Wang,Qin-Fan Zhu +1 more
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Proceedings ArticleDOI
Analysis, modeling and generation of self-similar VBR video traffic
Mark W. Garrett,Walter Willinger +1 more
TL;DR: The main findings are that the tail behavior of the marginal bandwidth distribution can be accurately described using “heavy-tailed” distributions and the autocorrelation of the VBR video sequence decays hyperbolically and can be modeled using self-similar processes.
Journal ArticleDOI
Supporting stored video: reducing rate variability and end-to-end resource requirements through optimal smoothing
TL;DR: This paper explores how the client buffer space can be used most effectively toward reducing the variability of the transmitted bit rate, and shows how to achieve the greatest possible reduction in rate variability when sending stored video to a client with given buffer size.
Journal ArticleDOI
Supporting stored video: reducing rate variability and end-to-end resource requirements through optimal smoothing
TL;DR: This paper presents an optimal smoothing algorithm for achieving the greatest possible reduction in rate variability when transmitting stored video to a client with given buffer size, and provides a formal proof of optimality.