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Iterative Joint Source-Channel Decoding Aided Transmission of Losslessly Compressed Video

Zhu, Chuan, Huo, Yongkai, Maunder, Robert G., Kawade, Santosh and Hanzo, Lajos (2013) Iterative Joint Source-Channel Decoding Aided Transmission of Losslessly Compressed Video At 2013 IEEE WCNC, China. 07 - 10 Apr 2013. , pp. 4582-4587. (doi:10.1109/WCNC.2013.6555317).

Record type: Conference or Workshop Item (Paper)


Iterative source-channel decoding (ISCD) exploits the residual redundancy of the source by iteratively exchanging extrinsic information with the channel codecs to achieve robust transmission. In this treatise we propose a video codec suitable for lossless video compression and IS CD. At the encoder the spatio-temporal redundancy is partially removed at a low complexity by simply evaluating the frame difference (FD), which is then variable-length encoded (VLC). At the receiver we invoke a three-stage concatenated IS CD scheme for exploiting the residual redundancy of the FD. A Markov Random Field (MRF) model based soft-in-soft-out (SISO) module is proposed for exploiting the spatial correlations amongst the adjacent video pixels, using intra-frame coding. More explicitly, the VLC SISO decoder operates by exchanging soft information with both the MRF module and the soft channel decoder. The convergence of the three-stage iterative decoding process is examined using 3D extrinsic information transfer (EXIT) charts. Finally, we show that our system exhibits a substantial Eb/NO improvement of about 5.2 dB compared to the corresponding benchmarker schemes.

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Published date: 7 April 2013
Venue - Dates: 2013 IEEE WCNC, China, 2013-04-07 - 2013-04-10
Organisations: Southampton Wireless Group


Local EPrints ID: 354646
PURE UUID: ecdadf4a-d667-4ae9-9670-c8e580902fd9
ORCID for Robert G. Maunder: ORCID iD

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Date deposited: 16 Jul 2013 11:53
Last modified: 18 Jul 2017 03:54

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Author: Chuan Zhu
Author: Yongkai Huo
Author: Robert G. Maunder ORCID iD
Author: Santosh Kawade
Author: Lajos Hanzo

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