7 citations · 7 across the 13 of their papers we have counts for
16 papers
Carbon-Aware Joint Resource and Energy Scheduling for Cellular Base Stations
Jaebum Park, Yutao Xie, Amitava Ghosh +2
Decarbonizing cellular networks requires coordinating communication-resource and battery operation with time-varying electricity prices and carbon intensity. We jointly optimize ba…
Energy Efficiency Optimization for 5G NR PDSCH: A Cross-Layer Link Abstraction Framework
Jaebum Park, Chan-Byoung Chae, Robert W. Heath
Energy efficiency (EE) optimization for cellular links often assumes Shannon-capacity transmission. The 3GPP New Radio (NR) physical downlink shared channel (PDSCH), however, deliv…
Finite-SNR Closed Form for the Square Marčenko-Pastur MIMO Capacity
Mohamed Akrout, Robert W. Heath
For the canonical independent and identically distributed (IID) single-user multiple-input multiple-output (MIMO) channel with full channel state information at the transmitter (CS…
Geometry-Aware DRL for Multi-Subband Scheduling in Satellite-Assisted UAM Networks
Hyung-Joo Moon, Sangha Park, Chan-Byoung Chae +1
In this paper, we investigate downlink scheduling for urban air mobility (UAM) in a cooperative space-air-ground integrated network. Multiple ground stations (GSs) employ narrow th…
Channel2World: A Wireless Foundation Model for RF Environment Representation
Hyung-Joo Moon, Joonkyu Jang, Kwang Soon Kim +3
Wireless channels are commonly treated as link-specific observations, although their multipath structure is governed by the surrounding radio-frequency (RF) environment. In this pa…
Physically Consistent Channel Modeling and Signal Processing for Reconfigurable Wireless Systems
Ahmad Dkhan, Simon Tarboush, Hadi Sarieddeen +3
Reconfigurable antennas are increasingly integrated into multi-antenna communication systems to exploit large apertures while reducing the hardware complexity, energy consumption,…
Energy Efficiency Optimization in Distributed MIMO vRAN via Cross-Layer Link Abstraction
Jaebum Park, Chan-Byoung Chae, Robert W. Heath
Virtualized radio access networks (vRAN) run the compute-intensive multiple-input multiple-output (MIMO) baseband as software on shared servers, which makes energy efficiency (EE)…
Signal Processing Foundations of Reconfigurable Antennas in the Tri-Hybrid MIMO Architecture
Nitish Vikas Deshpande, Joseph Carlson, Siyun Yang +6
To enable larger apertures in multipleinput multipleoutput MIMO systems the trihybrid MIMO architecture offers a promising lowcost and lowpower solution by introducing reconfigurab…
Symbol Distributions in Semantic Communications: A Source-Channel Equilibrium Perspective
Hanju Yoo, Dongha Choi, Songkuk Kim +2
Semantic communication systems often use end-to-end neural networks to map input data into continuous symbols. These symbols, which are essentially neural network features, have fi…
Accelerating vRAN and O-RAN with SIMD: Architectural Perspectives and Performance Evaluation
Jaebum Park, Chan-Byoung Chae, Robert W. Heath
The evolution of radio access networks (RANs) toward virtualization and openness creates new opportunities for flexible, cost-effective, and high-performance deployments. Achieving…
AI-Enhanced Wide-Area Data Imaging via Massive Non-Orthogonal Direct Device-to-HAPS Transmission
Hyung-Joo Moon, Chan-Byoung Chae, Kai-Kit Wong +1
Massive Aerial Processing for X MAP-X is an innovative framework for reconstructing spatially correlated ground data, such as environmental or industrial measurements distributed a…
The Tri-Hybrid MIMO Architecture
Robert W. Heath, Joseph Carlson, Nitish Vikas Deshpande +3
We present an evolution of multiple-input multiple-output (MIMO) wireless communications known as the tri-hybrid MIMO architecture. In this framework, the traditional operations of…
Beamforming with hybrid reconfigurable parasitic antenna arrays
Nitish Vikas Deshpande, Miguel Rodrigo Castellanos, Saeed R. Khosravirad +3
A parasitic reconfigurable antenna array is a low-power approach for beamforming using passive tunable elements. Prior work on reconfigurable antennas in communication theory is ba…
Embracing Reconfigurable Antennas in the Tri-hybrid MIMO Architecture for 6G and Beyond
Miguel Rodrigo Castellanos, Siyun Yang, Chan-Byoung Chae +1
Multiple-input multiple-output (MIMO) communication has led to immense enhancements in data rates and efficient spectrum management. The evolution of MIMO, though, has been accompa…
Bridging Neural Networks and Wireless Systems with MIMO-OFDM Semantic Communications
Hanju Yoo, Dongha Choi, Yonghwi Kim +4
Semantic communications aim to enhance transmission efficiency by jointly optimizing source coding, channel coding, and modulation. While prior research has demonstrated promising…
Next-slot OFDM-CSI Prediction: Multi-head Self-attention or State Space Model?
Mohamed Akrout, Faouzi Bellili, Amine Mezghani +1
The ongoing fifth-generation (5G) standardization is exploring the use of deep learning (DL) methods to enhance the new radio (NR) interface. Both in academia and industry, researc…