Smoothing variable-bit-rate video in an Internetwork
IEEE/ACM Transactions on Networking (TON)
Quality adaptation for congestion controlled video playback over the Internet
Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
Optimal smoothing for guaranteed service
IEEE/ACM Transactions on Networking (TON)
RITA: receiver initiated just-in-time tree adaptation for rich media distribution
NOSSDAV '03 Proceedings of the 13th international workshop on Network and operating systems support for digital audio and video
Application-specific path switching: a case study for streaming video
Proceedings of the 12th annual ACM international conference on Multimedia
Joint Adoption of QoS Schemes for MPEG Streams
Multimedia Tools and Applications
Video quality assurance in multi-source streaming techniques
Proceedings of the 4th international IFIP/ACM Latin American conference on Networking
ARMOR - A system for adjusting repair and media scaling for video streaming
Journal of Visual Communication and Image Representation
Energy Analysis of Multimedia Video Streaming on Mobile Devices
ISA '09 Proceedings of the 3rd International Conference and Workshops on Advances in Information Security and Assurance
Energy analysis of multimedia video decoding on mobile handheld devices
Computer Standards & Interfaces
Journal of Visual Communication and Image Representation
Statistical characterization for per-hop QoS
IWQoS'03 Proceedings of the 11th international conference on Quality of service
User-perceived quality assessment of streaming media using reduced feature sets
ACM Transactions on Internet Technology (TOIT)
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Over the past few years, there have been a number of proposals aimed at introducing different levels of service in the Internet. One of the more recent proposals is the Differentiated Services (Diff-Serv) architecture, and in this paper we explore how the policing actions and associated rate guarantees provided by the Expedited Forwarding (EF) translate into perceived benefits for applications that are the presumed users of such enhancements. Specifically, we focus on video streaming applications that arguably have relatively strong service quality requirements, and which should, therefore, stand to benefit from the availability of some form of enhanced service. Our goal is to gain a better understanding of the relation that exists between application level quality measures and the selection of the network level parameters that govern the delivery of the guarantees that an EF based service would provide. Our investigation, which is experimental in nature, relies on a number of standard streaming video servers and clients that have been modified and instrumented to allow quantification of the perceived quality of the received video stream. Quality assessments are performed using a Video Quality Measurement tool based on the ANSI objective quality standard. Measurements were made over both a local Diff-Serv testbed and across the QBone, a QoS enabled segment of the Internet2 infrastructure. The paper reports and analyzes the results of those measurements.