Abstract
As the demand for IPTV services increases, one of the main challenges for offering these services is fair bandwidth allocation among users requesting different IPTV video services. Most existing approaches treat all video streams equally, without taking into consideration that some video channels require higher bit rates than the others to reach the same quality. In this paper we present several algorithms for rate allocation that optimize a weighted sum of perceptual quality of all video streams subject to bandwidth constraints both at the access link between an access node and each home, and at the backbone link connecting the video server and multiple access nodes. The proposed algorithms consider the impact of spatial, temporal and amplitude resolution (STAR) of a coded video on both the bit rate and quality, and determine the optimal rate and corresponding STAR for each video subject to the bandwidth constraint. We explicitly consider the fact that achievable rates with possible STARs are discrete and perform optimization in the discrete search space. Results show that our algorithms provide significant improvement over benchmark algorithms that assign the same rate to all videos in terms of bandwidth utilization and overall subjective quality.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of the 12th International Conference on Telecommunications, ConTEL 2013 |
| Pages | 103-108 |
| Number of pages | 6 |
| State | Published - 2013 |
| Event | 12th International Conference on Telecommunications, ConTEL 2013 - Zagreb, Croatia Duration: Jun 26 2013 → Jun 28 2013 |
Other
| Other | 12th International Conference on Telecommunications, ConTEL 2013 |
|---|---|
| Country | Croatia |
| City | Zagreb |
| Period | 6/26/13 → 6/28/13 |
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Keywords
- IPTV
- Rate allocation
- Video Quality
ASJC Scopus subject areas
- Computer Networks and Communications
Cite this
Rate allocation among multiple video streams in IPTV network to optimize perceptual quality. / Maraj, Arianit; Seng, Yilin; Wang, Yao.
Proceedings of the 12th International Conference on Telecommunications, ConTEL 2013. 2013. p. 103-108 6578277.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Rate allocation among multiple video streams in IPTV network to optimize perceptual quality
AU - Maraj, Arianit
AU - Seng, Yilin
AU - Wang, Yao
PY - 2013
Y1 - 2013
N2 - As the demand for IPTV services increases, one of the main challenges for offering these services is fair bandwidth allocation among users requesting different IPTV video services. Most existing approaches treat all video streams equally, without taking into consideration that some video channels require higher bit rates than the others to reach the same quality. In this paper we present several algorithms for rate allocation that optimize a weighted sum of perceptual quality of all video streams subject to bandwidth constraints both at the access link between an access node and each home, and at the backbone link connecting the video server and multiple access nodes. The proposed algorithms consider the impact of spatial, temporal and amplitude resolution (STAR) of a coded video on both the bit rate and quality, and determine the optimal rate and corresponding STAR for each video subject to the bandwidth constraint. We explicitly consider the fact that achievable rates with possible STARs are discrete and perform optimization in the discrete search space. Results show that our algorithms provide significant improvement over benchmark algorithms that assign the same rate to all videos in terms of bandwidth utilization and overall subjective quality.
AB - As the demand for IPTV services increases, one of the main challenges for offering these services is fair bandwidth allocation among users requesting different IPTV video services. Most existing approaches treat all video streams equally, without taking into consideration that some video channels require higher bit rates than the others to reach the same quality. In this paper we present several algorithms for rate allocation that optimize a weighted sum of perceptual quality of all video streams subject to bandwidth constraints both at the access link between an access node and each home, and at the backbone link connecting the video server and multiple access nodes. The proposed algorithms consider the impact of spatial, temporal and amplitude resolution (STAR) of a coded video on both the bit rate and quality, and determine the optimal rate and corresponding STAR for each video subject to the bandwidth constraint. We explicitly consider the fact that achievable rates with possible STARs are discrete and perform optimization in the discrete search space. Results show that our algorithms provide significant improvement over benchmark algorithms that assign the same rate to all videos in terms of bandwidth utilization and overall subjective quality.
KW - IPTV
KW - Rate allocation
KW - Video Quality
UR - http://www.scopus.com/inward/record.url?scp=84883738762&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84883738762&partnerID=8YFLogxK
M3 - Conference contribution
SN - 9789531841757
SP - 103
EP - 108
BT - Proceedings of the 12th International Conference on Telecommunications, ConTEL 2013
ER -