Paper Info
Title
Unequal Error Protection For H.264 Video Using Rcpc Codes And Hierarchical Qam
Abstract
Compressed video data is very sensitive to channel-induced errors and network losses. Most conventional unequal error protection techniques involve forward error correction codes of different rates or asymmetric signal constellations for data of different priorities. It is yet unknown if combining the above two techniques can further improve performance. In this paper, we investigate rate-compatible punctured convolutional (RCPC) codes concatenated with hierarchical QAM for H.264 encoded video sequences. We investigate system constraints and propose an optimization formulation to compute the optimal parameters of the proposed system under the given source significance information. An upper bound to the bit error rate of the proposed system is derived as a function of system parameters, including the code rate and geometry of the constellation. The example shown demonstrates system design for H.264 video, where PSNR improvement is observed.
Year
DOI
Venue
2010
10.1109/ICC.2010.5502199
2010 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS - ICC 2010
Keywords
Field
DocType
Unequal Error Protection, Rate-Compatible Punctured Convolutional Code (RCPC), Hierarchical Modulation, H.264/AVC, Video
Forward error correction,Quadrature amplitude modulation,Convolutional code,Code rate,Computer science,QAM,Algorithm,Real-time computing,Theoretical computer science,Decoding methods,Data compression,Bit error rate
Conference
ISSN
Citations 
PageRank 
1550-3607
7
0.55
References 
Authors
9
5
Name
Order
Citations
PageRank
Wei-Ho Chung151768.70
Seethal Paluri2402.76
Sunil Kumar38610.07
Santosh Nagaraj46911.57
John D. Matyjas555443.69