Sliding-window forward error correction using Reed-Solomon code and unequal error protection for real-time streaming video

2017 ◽  
Vol 31 (1) ◽  
pp. e3405 ◽  
Author(s):  
Yung-Tsung Weng ◽  
Chi-Huang Shih ◽  
Yeh-Kai Chou
Keyword(s):  
Error Correction ◽  
Real Time ◽  
Forward Error Correction ◽  
Sliding Window ◽  
Unequal Error Protection ◽  
Streaming Video ◽  
Error Protection ◽  
Solomon Code ◽  
Reed Solomon Code ◽  
Forward Error

scholarly journals LDPC FEC Code Extension for Unequal Error Protection in DVB-T2 System: Design and Evaluation

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Lukasz Kondrad ◽  
Imed Bouazizi ◽  
Moncef Gabbouj
Keyword(s):  
Forward Error Correction ◽  
First Generation ◽  
Design Procedure ◽  
Physical Layer ◽  
Unequal Error Protection ◽  
Error Protection ◽  
Transmission Scheme ◽  
Video Broadcasting ◽  
Code Extension ◽  
Forward Error

The Digital Video Broadcasting organisation has recently introduced the second generation of terrestrial broadcast transmission standards, DVB-T2. The newly introduced tools ensure significant gain in performance of DVB-T2 compared to the first generation variant of the standard. One of these tools is the new physical layer concatenated forward error correction code. The inner among the concatenated codes is the Low-Density Parity Check code. The paper proposes a method to extend this code so varying coding strength inside one physical layer pipe of DVB-T2 is enabled in a backward compatible way. As consequence, unequal error protection transmission scheme at a physical layer of DVB-T2 can be efficiently deployed. The paper provides a step-by-step description of the design procedure of the extension. Moreover, the modification to the processing chain and the framing structure of DVB-T2, that ensures backward compatibility to the legacy system, is provided. The proposed method is evaluated under AWGN channel and TU6 channel. Experiments performed on four different video sequences show significant improvements in quality of experience when the proposed extension is used to achieve UEP transmission.

scholarly journals Application Layer Systematic Network Coding for Sliced H.264/AVC Video Streaming

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Sajid Nazir ◽  
Vladimir Stanković ◽  
Ivan Andonović ◽  
Dejan Vukobratović
Keyword(s):  
Forward Error Correction ◽  
Linear Codes ◽  
Unequal Error Protection ◽  
Video Data ◽  
Application Layer ◽  
Error Protection ◽  
Coding Scheme ◽  
Partitioned Data ◽  
Advanced Video Coding ◽  
Forward Error

Application Layer Forward Error Correction (AL-FEC) with rateless codes can be applied to protect the video data over lossy channels. Expanding Window Random Linear Codes (EW RLCs) are a flexible unequal error protection fountain coding scheme which can provide prioritized data transmission. In this paper, we propose a system that exploits systematic EW RLC for H.264/Advanced Video Coding (AVC) slice-partitioned data. The system prioritizes slices based on their PSNR contribution to reconstruction as well as temporal significance. Simulation results demonstrate usefulness of using relative slice priority with systematic codes for multimedia broadcast applications.

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