A framework combining VQ-VAE, task-relevance scoring, DRL subset selection, and a learned semantic-aware constellation claims near-100% semantic protection probability and proves standard Gray-coded constellations are suboptimal under non-uniform importance.
To- ward robust semantic communications: Proactive importance-ordered restructuring for enhanced unequal error protection,
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Not All Symbols Are Equal: Importance-Aware Constellation Design for Semantic Communication
A framework combining VQ-VAE, task-relevance scoring, DRL subset selection, and a learned semantic-aware constellation claims near-100% semantic protection probability and proves standard Gray-coded constellations are suboptimal under non-uniform importance.