An Unequal Error Protection Scheme for Progressive Image Transmission Over Half-Duplex Channels

DOI: https://doi.org/10.1109/SPCOM60851.2024.10631588

An Unequal Error Protection (UEP) method tailored for low-power, resource-constrained systems. By blending color theory with lossy compression strategies, CosinePrism smartly allocates error correction to preserve image quality where it matters most.

Designed for half-duplex links, it supports progressive delivery of both RGB and grayscale images, with an optional JPEG re-compression mode. CosinePrism matches JPEG in file-size while improving DSSIM by 55.5% over standard Equal Error Protection. Presented at SPCOMM 2024.

Comparison of image transmission quality through acoustic channel demodulation. From left to right: original images, results from baseline traditional demodulator, proposed Neural Network demodulator, and proposed Neural Network demodulator with fine-tuning. The fine-tuned model demonstrates superior Bit Error Rate and SSIM.

DSSIM-SNR comparision for JPEG (above) and CosinePrism (below). Lower is better.