62 citations · 119 across the 26 of their papers we have counts for
27 papers
Load Balancing in Multi-Shell LEO Satellite Networks with Successive Interference Cancellation
Seyong Kim, Jeonghun Park, Jeffrey G. Andrews
Multi-shell low Earth orbit (LEO) networks can increase service opportunities, but altitude-dependent propagation can concentrate traffic on lower shells and create strong inter-sh…
Coverage Analysis of Dynamic Coordinated Beamforming for LEO Satellite Downlink Networks
Daeun Kim, Jeonghun Park, Namyoon Lee
In this paper, we investigate the coverage performance of downlink satellite networks employing dynamic coordinated beamforming. Our approach involves modeling the spatial arrangem…
On the Learning of Digital Self-Interference Cancellation in Full-Duplex Radios
Jungyeon Kim, Hyowon Lee, Heedong Do +5
Full-duplex communication systems have the potential to achieve significantly higher data rates and lower latency compared to their half-duplex counterparts. This advantage stems f…
Spherical Point Process with Random Heights: New Approach for Modeling and Analysis of Downlink Satellite Networks
Seyong Kim, Jinseok Choi, Namyoon Lee +2
The Low Earth Orbit (LEO) satellite industry is undergoing rapid expansion, with operators competitively launching satellites due to the first-come, first-served principle governin…
Rate-Splitting Multiple Access for 6G Networks: Ten Promising Scenarios and Applications
Jeonghun Park, Byungju Lee, Jinseok Choi +10
In the upcoming 6G era, multiple access (MA) will play an essential role in achieving high throughput performances required in a wide range of wireless applications. Since MA and i…
FDD Massive MIMO Without CSI Feedback
Deokhwan Han, Jeonghun Park, Namyoon Lee
Transmitter channel state information (CSIT) is indispensable for the spectral efficiency gains offered by massive multiple-input multiple-output (MIMO) systems. In a frequency-div…
Split-KalmanNet: A Robust Model-Based Deep Learning Approach for SLAM
Geon Choi, Jeonghun Park, Nir Shlezinger +2
Simultaneous localization and mapping (SLAM) is a method that constructs a map of an unknown environment and localizes the position of a moving agent on the map simultaneously. Ext…
Block Orthogonal Sparse Superposition Codes for Ultra-Reliable Low-Latency Communications
Donghwa Han, Jeonghun Park, Youngjoo Lee +2
Low-rate and short-packet transmissions are important for ultra-reliable low-latency communications (URLLC). In this paper, we put forth a new family of sparse superposition codes…
Joint Optimization for Secure and Reliable Communications in Finite Blocklength Regime
Mintaek Oh, Jeonghun Park, Jinseok Choi
To realize ultra-reliable low latency communications with high spectral efficiency and security, we investigate a joint optimization problem for downlink communications with multip…
Rate-Splitting Multiple Access for Quantized Multiuser MIMO Communications
Seokjun Park, Jinseok Choi, Jeonghun Park +2
This paper investigates the sum spectral efficiency maximization problem in downlink multiuser multiple-input multiple-output (MIMO) systems with low-resolution quantizers at an ac…
Joint Precoding and Artificial Noise Design for MU-MIMO Wiretap Channels
Eunsung Choi, Mintaek Oh, Jinseok Choi +3
Secure precoding superimposed with artificial noise (AN) is a promising transmission technique to improve security by harnessing the superposition nature of the wireless medium. Ho…
A Tractable Approach to Coverage Analysis in Downlink Satellite Networks
Jeonghun Park, Jinseok Choi, Namyoon Lee
Satellite networks are promising to provide ubiquitous and high-capacity global wireless connectivity. Traditionally, satellite networks are modeled by placing satellites on a grid…
Secure Transmission for Hierarchical Information Accessibility in Downlink MU-MIMO
Kanguk Lee, Jinseok Choi, Dong Ku Kim +1
Physical layer security is a useful tool to prevent confidential information from wiretapping. In this paper, we consider a generalized model of conventional physical layer securit…
Energy Efficiency Maximization Precoding for Quantized Massive MIMO Systems
Jinseok Choi, Jeonghun Park, Namyoon Lee
The use of low-resolution digital-to-analog and analog-to-digital converters (DACs and ADCs) significantly benefits energy efficiency (EE) at the cost of high quantization noise in…
Rate-Splitting Multiple Access for Downlink MIMO: A Generalized Power Iteration Approach
Jeonghun Park, Jinseok Choi, Namyoon Lee +2
Rate-splitting multiple access (RSMA) is a general multiple access scheme for downlink multi-antenna systems embracing both classical spatial division multiple access and more rece…
Sparse Joint Transmission for Cloud Radio Access Networks with Limited Fronthaul Capacity
Deokhwan Han, Jeonghun Park, Seok-Hwan Park +1
A cloud radio access network (C-RAN) is a promising cellular network, wherein densely deployed multi-antenna remote-radio-heads (RRHs) jointly serve many users using the same time-…
Precoding Design for Multi-user MIMO Systems with Delay-Constrained and -Tolerant Users
Minsu Kim, Jeonghun Park, Jemin Lee
In both academia and industry, multi-user multiple-input multiple-output (MU-MIMO) techniques have shown enormous gains in spectral efficiency by exploiting spatial degrees of free…
Terahertz Line-Of-Sight MIMO Communication: Theory and Practical Challenges
Heedong Do, Sungmin Cho, Jeonghun Park +3
A relentless trend in wireless communications is the hunger for bandwidth, and fresh bandwidth is only to be found at ever-higher frequencies. While 5G systems are seizing the mmWa…
Sparse Joint Transmission for Cell-Free Massive MIMO: A Sparse PCA Approach
Deokhwan Han, Jeonghun Park, Namyoon Lee
Cell-free massive multiple-input multiple-output (MIMO) is a promising cellular network. In this network, a large number of distributed and multi-antenna access points (APs) jointl…
Rate Analysis of Ultra-Reliable Low-Latency Communications in Random Wireless Networks
Jeonghun Park
In this letter, we analyze the achievable rate of ultra-reliable low-latency communications (URLLC) in a randomly modeled wireless network. We use two mathematical tools to properl…
Inter-Operator Base Station Coordination in Spectrum-Shared Millimeter Wave Cellular Networks
Jeonghun Park, Jeffrey G. Andrews, Robert W. Heath
We characterize the rate coverage distribution for a spectrum-shared millimeter wave downlink cellular network. Each of multiple cellular operators owns separate mmWave bandwidth,…
Feedback Design for Multi-Antenna K-tier Heterogeneous Downlink Cellular Networks
Jeonghun Park, Namyoon Lee, Robert W. Heath
We characterize the ergodic spectral efficiency of a non-cooperative and a cooperative type of K-tier heterogeneous networks with limited feedback. In the non-cooperative case, a m…
Spectral Efficiency Bounds for Interference-Limited SVD-MIMO Cellular Communication Systems
Jinseok Choi, Jeonghun Park, Brian L. Evans
The ergodic spectral efficiency (SE) in interference-limited multiple-input multiple-output (MIMO) downlink cellular systems is characterized based on stochastic geometry. A single…
Optimal User Loading in Massive MIMO Systems with Regularized Zero Forcing Precoding
Sungwoo Park, Jeonghun Park, Ali Yazdan Panah +1
We consider a downlink multiuser multiple-input multiple output (MIMO) system employing regularized zero-forcing (RZF) precoding. We derive the asymptotic signal-to-leakage-plus-no…