Performance evaluation study for QoS-aware triple play services over entry-level xDSL connections
Journal of Network and Computer Applications
QoS-enabled multicast for delivering live events in a Digital Cinema scenario
Journal of Network and Computer Applications
Objectives for new error criteria for mobile broadcasting of streaming audiovisual services
EURASIP Journal on Advances in Signal Processing
Computer Networks: The International Journal of Computer and Telecommunications Networking
xStreamer: modular multimedia streaming
MM '09 Proceedings of the 17th ACM international conference on Multimedia
ICCSA'05 Proceedings of the 2005 international conference on Computational Science and Its Applications - Volume Part II
Image quality assessment: from error visibility to structural similarity
IEEE Transactions on Image Processing
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The Digital Video Broadcast-Handheld (DVB-H) is an international standard which offers broadcast data services to mobile handheld devices. Its main enhancements to conventional Digital Video Broadcast-Terrestrial (DVB-T) systems include the addition of time-slicing and an extra stage of error correction, referred to as Multi-Protocol Encapsulation-Forward Error Correction (MPE-FEC) at the link layer. The essential components required to deploy an IP-based mobile TV service on top of DVB-H are described by the DVB standard for IP DataCast specifications (DVB-IPDC). Since mobile TV services mostly consist of real-time video data, very stringent demands in terms of quality of service (QoS) are imposed to the broadcast operator's primary distribution network. In this article, the impact of packet loss, introduced in a IP-based distribution network, on the quality of experience (QoE), the video quality as perceived by the end user, is characterised. In recent work, a first analysis of the impact of random packet loss was reported upon. This paper describes a more profound analysis of both random and burst packet loss by taking into account several objective video quality metrics. It is shown that, although MPE-FEC is introduced for better reception between antenna and receiver, its use has a major impact on the effects of packet loss in the distribution network. The use of error-correction techniques in the distribution network only has a beneficial impact on the QoE when lower MPE-FEC code rates are used. Moreover, the impact of action scenes or scene switches on the perceived video quality is also characterised in detail. Based on the experimental results, an analytical model is presented which allows to predict the QoE detoriation as a function of the burst loss probability in the distribution network.