Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAX
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 partitio...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Advances in Multimedia |
| Online Access: | http://dx.doi.org/10.1155/2012/129517 |
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| _version_ | 1832553501801054208 |
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| author | Laith Al-Jobouri Martin Fleury Mohammed Ghanbari |
| author_facet | Laith Al-Jobouri Martin Fleury Mohammed Ghanbari |
| author_sort | Laith Al-Jobouri |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-d31c97406bb045dfb9f965e0a2bba828 |
| institution | Kabale University |
| issn | 1687-5680 1687-5699 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Multimedia |
| spelling | doaj-art-d31c97406bb045dfb9f965e0a2bba8282025-02-03T05:53:50ZengWileyAdvances in Multimedia1687-56801687-56992012-01-01201210.1155/2012/129517129517Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAXLaith Al-Jobouri0Martin Fleury1Mohammed Ghanbari2School of Computer Science and Electronic Engineering, University of Essex, Colchester CO4 3SQ, UKSchool of Computer Science and Electronic Engineering, University of Essex, Colchester CO4 3SQ, UKSchool of Computer Science and Electronic Engineering, University of Essex, Colchester CO4 3SQ, UKBroadband 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.http://dx.doi.org/10.1155/2012/129517 |
| spellingShingle | Laith Al-Jobouri Martin Fleury Mohammed Ghanbari Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAX Advances in Multimedia |
| title | Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAX |
| title_full | Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAX |
| title_fullStr | Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAX |
| title_full_unstemmed | Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAX |
| title_short | Protecting H.264/AVC Data-Partitioned Video Streams over Broadband WiMAX |
| title_sort | protecting h 264 avc data partitioned video streams over broadband wimax |
| url | http://dx.doi.org/10.1155/2012/129517 |
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