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Transmitter Diversity Gain Technique Aided Irregular Channel Coding for Mobile Video Transmission
Nasru Minallah1, Khadem Ullah1, Jaroslav Frnda2
1Department of Computer Systems Engineering, University of Engineering and Technology Peshawar, Peshawar 25000, Pakistan.
Entropy (Basel, Switzerland)
|March 6, 2021
Summary
The Irregular Error Protection scheme-2 (IREP-2) improves multimedia transmission reliability for H.264/Advanced Video Coding (AVC) streams. This scheme offers significant coding gains over regular and other irregular protection methods, enhancing Quality of Experience (QoE).
Area of Science:
- Information Theory
- Digital Communications
- Video Coding
Background:
- Reliable multimedia transmission of compressed video is challenging.
- Highly efficient video compression (H.264/AVC) requires robust error protection.
- Irregular Convolutional Codes (IRCCs) offer flexible error correction capabilities.
Purpose of the Study:
- To evaluate the iterative convergence and Quality of Experience (QoE) of IrRegular Convolutional Codes (IRCCs) combined with Sphere Packing (SP) modulation and Differential Space Time Spreading Codes (DSTS).
- To compare three error protection schemes: Regular Error Protection (REP), Irregular Error Protection scheme-1 (IREP-1), and Irregular Error Protection scheme-2 (IREP-2) for H.264/AVC video streams.
- To analyze the performance using EXtrinsic Information Transfer (EXIT) charts, Bit Error Rate (BER), and Peak Signal to Noise Ratio (PSNR).
Main Methods:
- Implementation of three error protection schemes: REP, IREP-1, and IREP-2, with varying prioritization of H.264/AVC video partitions.
- Utilizing a combined IRCC-SP-DSTS scheme for error protection.
- Performance analysis through EXtrinsic Information Transfer (EXIT) charts for iterative convergence.
- Objective quality evaluation using Bit Error Rate (BER) and Peak Signal to Noise Ratio (PSNR) metrics.
Main Results:
- The IREP-2 scheme, prioritizing H.264/AVC partitions as B, A, and C, demonstrated superior performance.
- IREP-2 achieved a 1 dB Eb/N0 gain over IREP-1 and a 0.6 dB Eb/N0 gain over the REP scheme.
- These gains were observed with a minimal Peak Signal to Noise Ratio (PSNR) degradation of 1 dB.
Conclusions:
- The proposed Irregular Error Protection scheme-2 (IREP-2) effectively enhances the reliability of H.264/AVC video transmission.
- Prioritizing video partitions based on their importance (B, A, C) leads to significant coding gains.
- The IRCC-SP-DSTS framework provides a robust solution for multimedia transmission over challenging channels.
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