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Linear Progressive Coding for Semantic Communication using Deep Neural Networks
Preprint   Open access

Linear Progressive Coding for Semantic Communication using Deep Neural Networks

Eva Riherd, Raghu Mudumbai and Weiyu Xu
ArXiv.org
Cornell University
09/27/2023
DOI: 10.48550/arxiv.2309.15959
url
https://doi.org/10.48550/arxiv.2309.15959View
Preprint (Author's original)This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

We propose a general method for semantic representation of images and other data using progressive coding. Semantic coding allows for specific pieces of information to be selectively encoded into a set of measurements that can be highly compressed compared to the size of the original raw data. We consider a hierarchical method of coding where a partial amount of semantic information is first encoded a into a coarse representation of the data, which is then refined by additional encodings that add additional semantic information. Such hierarchical coding is especially well-suited for semantic communication i.e. transferring semantic information over noisy channels. Our proposed method can be considered as a generalization of both progressive image compression and source coding for semantic communication. We present results from experiments on the MNIST and CIFAR-10 datasets that show that progressive semantic coding can provide timely previews of semantic information with a small number of initial measurements while achieving overall accuracy and efficiency comparable to non-progressive methods.

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