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| Content Provider | IET Digital Library |
|---|---|
| Author | Huo, Yongkai Wang, Tao Maunder, Robert G. Hanzo, Lajos |
| Abstract | Since joint source-channel decoding is capable of exploiting the residual redundancy in the source signals for improving the attainable error resilience, it has attracted substantial attention. In this treatise, the authors study iterative source-channel decoding (ISCD) aided video communications, where the video signal redundancy is modelled by a first-order Markov process. Firstly, the authors derive reduced-complexity formulas for the first-order Markov modelling (FOMM) aided source decoding. Then they propose a bit-based iterative horizontal–vertical scanline model (IHVSM) aided source decoding algorithm, where a horizontal and a vertical source decoder are employed for exchanging their extrinsic information using the iterative decoding philosophy. The iterative IHVSM aided decoder is then employed in a forward error correction (FEC) encoded uncompressed video transmission scenario, where the IHVSM and the FEC decoder exchange softbit-information for performing turbo-like ISCD for the sake of improving the reconstructed video quality. Finally, the authors benchmark the attainable system performance against a near-lossless H.264/AVC video communication system and the existing FOMM-based softbit source decoding scheme. The authors simulation results show that Eb /N 0 improvements in excess of 2.8 dB are attainable by the proposed technique in uncompressed video applications. |
| Starting Page | 1465 |
| Ending Page | 1475 |
| Page Count | 11 |
| ISSN | 17518628 |
| Volume Number | 7 |
| e-ISSN | 17518636 |
| Issue Number | Issue 14, Sep (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/7/14 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2013.0053 |
| Journal | IET Communications |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | 1D Markov Model Aided Decoder Attainable Error Resilience Improvement Bit-based Iterative Horizontal-vertical Scanline Model Aided Source Decoding Algorithm Combined Source-channel Coding Correlation Modelling Data Compression FEC Decoder First-order Markov Modelling Aided Source Decoding Algorithm First-order Markov Process FOMM FOMM-based Softbit Source Decoding Scheme Forward Error Correction Forward Error Correction Encoded Uncompressed Video Transmission Scenario Gain 2.8 DB Horizontal Source Decoder IHVSM Image And Video Coding ISCD Iterative Decoding Iterative Source-channel Decoding Aided Video Communication Joint Source-channel Decoding Markov Processes Near-lossless H.264-AVC Video Communication System Radio Link And Equipment Radio Receiver Reconstructed Video Quality Improvement Reduced-complexity Formulas Residual Redundancy Source Redundancy Source Signal Uncompressed Video Application Vertical Source Decoder Video Coding Video Communication Video Signal Processing Wireless Video Transmission |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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