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Title |
On the Enhancement of Unequal Error Protection Performances in Images Transmission over Time-Varying Channels |
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Author |
Pasteur Poda, Ahmed Tamtaoui |
| Citation |
Vol. 6 No. 9 pp. 168-174 |
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Abstract |
In this paper, we dealt with an unequal error protection (UEP) solution for visual-based quantized JPEG images coded and transmitted over time-varying channels by focusing our purpose on the question of how to improve the total rate-distortion performances of a given UEP scheme. In consequence, over an UEP scheme, a packet transmission solution is proposed with a retransmission protocol using rate-compatible punctured convolutional codes (RCPC codes). The simulated time-varying channel is a Rayleigh fading type where the transmitted packets do not always experience the channel distortion with the same intensity. Attractive results are issued from our simulations. |
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Keywords |
ARQ/FEC, JPEG images, RCPC codes, time-varying channels, UEP. |
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