TY - JOUR
T1 - Sliding-Window raptor codes for efficient scalable wireless video broadcasting with unequal loss protection
AU - Cataldi, Pasquale
AU - Grangetto, Marco
AU - Tillo, Tammam
AU - Magli, Enrico
AU - Olmo, Gabriella
N1 - Funding Information:
Manuscript received August 08, 2008; revised January 10, 2010. First published March 08, 2010; current version published May 14, 2010. This work was supported in part by the National Natural Science Foundation of China under Grants 60972085 and 60903066. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Lina J. Karam.
PY - 2010/6
Y1 - 2010/6
N2 - Digital fountain codes have emerged as a low-complexity alternative to ReedSolomon codes for erasure correction. The applications of these codes are relevant especially in the field of wireless video, where low encoding and decoding complexity is crucial. In this paper, we introduce a new class of digital fountain codes based on a sliding-window approach applied to Raptor codes. These codes have several properties useful for video applications, and provide better performance than classical digital fountains. Then, we propose an application of sliding-window Raptor codes to wireless video broadcasting using scalable video coding. The rates of the base and enhancement layers, as well as the number of coded packets generated for each layer, are optimized so as to yield the best possible expected quality at the receiver side, and providing unequal loss protection to the different layers according to their importance. The proposed system has been validated in a UMTS broadcast scenario, showing that it improves the end-to-end quality, and is robust towards fluctuations in the packet loss rate.
AB - Digital fountain codes have emerged as a low-complexity alternative to ReedSolomon codes for erasure correction. The applications of these codes are relevant especially in the field of wireless video, where low encoding and decoding complexity is crucial. In this paper, we introduce a new class of digital fountain codes based on a sliding-window approach applied to Raptor codes. These codes have several properties useful for video applications, and provide better performance than classical digital fountains. Then, we propose an application of sliding-window Raptor codes to wireless video broadcasting using scalable video coding. The rates of the base and enhancement layers, as well as the number of coded packets generated for each layer, are optimized so as to yield the best possible expected quality at the receiver side, and providing unequal loss protection to the different layers according to their importance. The proposed system has been validated in a UMTS broadcast scenario, showing that it improves the end-to-end quality, and is robust towards fluctuations in the packet loss rate.
KW - Application layer forward error correction (FEC) codes
KW - Digital fountain codes
KW - H.264/SVC
KW - Multimedia broadcast multicast services (MBMS) video broadcasting
KW - Scalable video coding
UR - http://www.scopus.com/inward/record.url?scp=77952592913&partnerID=8YFLogxK
U2 - 10.1109/TIP.2010.2042985
DO - 10.1109/TIP.2010.2042985
M3 - Article
C2 - 20215084
AN - SCOPUS:77952592913
SN - 1057-7149
VL - 19
SP - 1491
EP - 1503
JO - IEEE Transactions on Image Processing
JF - IEEE Transactions on Image Processing
IS - 6
M1 - 5427013
ER -