Al-Jobouri, Laith and Fleury, Martin and Ghanbari, Mohammed (2012) Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAX. Advances in Multimedia, 2012. pp. 1-11. DOI https://doi.org/10.1155/2012/129517
Al-Jobouri, Laith and Fleury, Martin and Ghanbari, Mohammed (2012) Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAX. Advances in Multimedia, 2012. pp. 1-11. DOI https://doi.org/10.1155/2012/129517
Al-Jobouri, Laith and Fleury, Martin and Ghanbari, Mohammed (2012) Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAX. Advances in Multimedia, 2012. pp. 1-11. DOI https://doi.org/10.1155/2012/129517
Abstract
Broadband wireless technology, though aimed at video services, also poses a potential threat to video services, as wireless channels are prone to error bursts. In this paper, an adaptive, application-layer Forward Error Correction (FEC) scheme protects H.264/AVC data-partitioned video. Data partitioning is the division of a compressed video stream into partitions of differing decoding importance. The paper determines whether equal error protection (EEP) through FEC of all partition types or unequal error protection (UEP) of the more important partition type is preferable. The paper finds that, though UEP offers a small reduction in bitrate, if EEP is employed, there are significant gains (several dBs) in video quality. Overhead from using EEP rather than UEP was found to be around 1% of the overall bitrate. Given that data partitioning already reduces errors through packet size reduction and differentiation of coding data, EEP with data partitioning is a practical means of protecting user-based video streaming. The gain from employing EEP is shown to be higher quality video to the user, which will result in a greater take-up of video services. The results have implications for other forms of prioritized video streaming.
Item Type: | Article |
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Divisions: | Faculty of Science and Health Faculty of Science and Health > Computer Science and Electronic Engineering, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 26 Apr 2021 13:04 |
Last Modified: | 06 Jan 2022 13:49 |
URI: | http://repository.essex.ac.uk/id/eprint/26432 |
Available files
Filename: 129517.pdf