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Rate-Adaptive Generative Semantic Communication Using Conditional Diffusion Models
In this letter, we propose a novel generative DJSCC approach using conditional diffusion models to enhance the perceptual quality of transmitted images.
Digital Wireless Image Transmission via Distribution Matching
Firstly, we introduce a uniform modulation scheme, where the distance between two constellations is adjustable to match the non-uniform nature of the distribution.
From Analog to Digital: Multi-Order Digital Joint Coding-Modulation for Semantic Communication
Herein, we treat modulation/demodulation as a constrained quantization process and introduce scaling operations alongside manually crafted noise to approximate this process.
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