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eess.SP2026
Extended Universal Joint Source-Channel Coding for Digital Semantic Communications: Improving Channel-Adaptability
Eunsoo Kim, Yoon Huh, Wan Choi
Deep learning (DL)-based joint source--channel coding (JSCC), particularly vector quantization (VQ)-based JSCC, enables efficient semantic communication by mapping high-dimensional…
eess.SP2025
DFT-based Near-field Beam Alignment: Model-based and Data-Driven Hybrid Approach
Hongjun Heo, Wan Choi
Accurate beam alignment is a critical challenge in XL-MIMO systems, especially in the near-field regime, where conventional far-field assumptions no longer hold. Although 2D grid-b…
eess.SP2025
Weighted-Sum Energy Efficiency Maximization in User-Centric Uplink Cell-Free Massive MIMO
Donghwi Kim, Liesbet Van der Perre, Wan Choi
This paper introduces the weighted-sum energy efficiency (WSEE) as an advanced performance metric designed to represent the uplink energy efficiency (EE) of individual user equipme…