38 citations · 59 across the 14 of their papers we have counts for
10 papers · 1 filter
Ultra-Reliable and Low-Latency Short-Packet Communications for Multihop MIMO Relaying
Ngo Hoang Tu, Kyungchun Lee
This work considers the multihop multiple-input multiple-output relay network under short-packet communications to facilitate not only ultra-reliability but also low-latency commun…
Application of Deep Learning to Sphere Decoding for Large MIMO Systems
Nhan Thanh Nguyen, Kyungchun Lee, Huaiyu Dai
Although the sphere decoder (SD) is a powerful detector for multiple-input multiple-output (MIMO) systems, it has become computationally prohibitive in massive MIMO systems, where…
Hybrid Beamforming and Adaptive RF Chain Activation for Uplink Cell-Free Millimeter-Wave Massive MIMO Systems
Nhan Thanh Nguyen, Kyungchun Lee, Huaiyu Dai
In this work, we investigate hybrid analog-digital beamforming (HBF) architectures for uplink cell-free (CF) millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO)…
Hybrid Combining Based on Constant Phase Shifters and Active/Inactive Switches
Eduard E. Bahingayi, Kyungchun Lee
In this paper, we propose a new hybrid analog and digital combining architecture for millimeter wave (mmWave) multi-user multiple-input multiple-output (MU-MIMO) systems. The propo…
Learning-Aided Deep Path Prediction for Sphere Decoding in Large MIMO Systems
Doyeon Weon, Kyungchun Lee
In this paper, we propose a novel learning-aided sphere decoding (SD) scheme for large multiple-input--multiple-output systems, namely, deep path prediction-based sphere decoding (…
Groupwise Neighbor Examination for Tabu Search Detection in Large MIMO systems
Nhan Thanh Nguyen, Kyungchun Lee
In the conventional tabu search (TS) detection algorithm for multiple-input multiple-output (MIMO) systems, the metrics of all neighboring vectors are computed to determine the bes…
Deep Learning-Aided Tabu Search Detection for Large MIMO Systems
NhanThanh Nguyen, Kyungchun Lee
In this study, we consider the application of deep learning (DL) to tabu search (TS) detection in large multiple-input multiple-output (MIMO) systems. First, we propose a deep neur…
Unequally Sub-connected Architecture for Hybrid Beamforming in Massive MIMO Systems
Nhan Thanh Nguyen, Kyungchun Lee
A variety of hybrid analog-digital beamforming architectures have recently been proposed for massive multiple-input multiple-output (MIMO) systems to reduce energy consumption and…
Cell Coverage Extension with Orthogonal Random Precoding for Massive MIMO Systems
Nhan Thanh Nguyen, Kyungchun Lee
In this paper, we investigate a coverage extension scheme based on orthogonal random precoding (ORP) for the downlink of massive multiple-input multiple-output (MIMO) systems. In t…
Interference Alignment for Multicell Multiuser MIMO Uplink Channels
Khanh Pham, Kyungchun Lee
This paper proposes a linear interference alignment (IA) scheme which can be used for uplink channels in a general multicell multiuser MIMO cellular network. The proposed scheme ai…