5 papers
Joint Channel Estimation, Detection, and Resource Allocation for OTFS-RSMA
Chaedam Son, Si-Hyeon Lee
Orthogonal time frequency space (OTFS) modulation is well suited for high-mobility communications, but channel estimation and efficient multi-user transmission remain challenging.…
Tracking-Assisted Robust Secure Transmission Against a Mobile Eavesdropper in Cell-Free ISAC Networks
Jong-Hyuk Hong, Chaedam Son, Si-Hyeon Lee
In this paper, we propose a tracking-assisted robust secure transmission framework for cell-free integrated sensing and communication (ISAC) networks that exploits distributed mult…
LENS: Low-Frequency Eigen Noise Shaping for Efficient Diffusion Sampling
Haewon Jeon, Si-Hyeon Lee
Distilled diffusion models accelerate image generation by reducing the number of denoising steps, but often suffer from degraded image quality. To mitigate this trade-off, test-tim…
Accelerating LMO-Based Optimization via Implicit Gradient Transport
Won-Jun Jang, Si-Hyeon Lee
Recent optimizers such as Lion and Muon have demonstrated strong empirical performance by normalizing gradient momentum via linear minimization oracles (LMOs). While variance reduc…
Provably Near-Optimal Federated Ensemble Distillation with Negligible Overhead
Won-Jun Jang, Hyeon-Seo Park, Si-Hyeon Lee
Federated ensemble distillation addresses client heterogeneity by generating pseudo-labels for an unlabeled server dataset based on client predictions and training the server model…