289 citations · 520 across the 41 of their papers we have counts for
33 papers · 1 filter
Low-Complexity Symbol-Level Precoding for MU-MISO Downlink Systems with QAM Signals
Sungyeal Park, Yunseong Cho, Songnam Hong
This study proposes the construction of a transmit signal for large-scale antenna systems with cost-effective 1-bit digital-to-analog converters in the downlink. Under quadrature-a…
Orthogonal Sparse Superposition Codes for Ultra-Reliable Low-Latency Communications
Yunseo Nam, Jeonghun Park, Songnam Hong +1
This paper presents a new class of sparse superposition codes for low-rates and short-packet communications over the additive white Gaussian noise channel. The new code is orthogon…
Construction of 1-Bit Transmit Signal Vectors for Downlink MU-MISO Systems: QAM constellations
Sungyeal Park, Yunseong Cho, Songnam Hong
In this paper, we investigate the construction of a transmit signal for a base station with a massive number of antenna arrays under the cost-effective 1-bit digital-to-analog conv…
Greedy Sparse Signal Recovery Algorithm Based on Bit-wise MAP detection
J. Chae, S. -N. Hong
We propose a novel greedy algorithm for the support recovery of a sparse signal from a small number of noisy measurements. In the proposed method, a new support index is identified…
Supervised-Learning for Multi-Hop MU-MIMO Communications with One-Bit Transceivers
Daeun Kim, Song-Nam Hong, Namyoon Lee
This paper considers a nonlinear multi-hop multi-user multiple-input multiple-output (MU-MIMO) relay channel, in which multiple users send information symbols to a multi-antenna ba…
Semi-Supervised Learning Detector for MU-MIMO Systems with One-bit ADCs
Seonho Kim, Song-Nam Hong
We study an uplink multiuser multiple-input multiple-output (MU-MIMO) system with one-bit analog-to-digital converters (ADCs). For such system, a supervised-learning (SL) detector…
Joint User Selection, Power Allocation, and Precoding Design with Imperfect CSIT for Multi-Cell MU-MIMO Downlink Systems
Jiwook Choi, Namyoon Lee, Song-Nam Hong +1
In this paper, a new optimization framework is presented for the joint design of user selection, power allocation, and precoding in multi-cell multi-user multiple-input multiple-ou…
Construction of One-Bit Transmit-Signal Vectors for Downlink MU-MISO Systems with PSK Signaling
Gyu-Jeong Park, Song-Nam Hong
We study a downlink multi-user multiple-input single-output (MU-MISO) system in which the base station (BS) has a large number of antennas with cost-effective one-bit digital-to-an…
A Supervised-Learning Detector for Multihop Distributed Reception Systems
Seonho Kim, Song-Nam Hong
We consider a multihop distributed uplink reception system in which users transmit independent messages to one data center of receive antennas, with the aid…
Soft-Output Detection Methods for Sparse Millimeter Wave MIMO Systems with Low-Precision ADCs
Yo-Seb Jeon, Heedong Do, Song-Nam Hong +1
The use of low-precision analog-to-digital converters (ADCs) is a low-cost and power-efficient solution for a millimeter wave (mmWave) multiple-input multiple-output (MIMO) system…
On the Analysis of Puncturing for Finite-Length Polar Codes: Boolean Function Approach
Song-Nam Hong, Dennis Hui
This paper investigates the impact of puncturing on finite-length polar codes in which a puncturing pattern $\pv^{N}=(p_0,...,p_N)$ is applied to a length- polar code.. We first…
An Efficient Construction of Rate-Compatible Punctured Polar (RCPP) Codes Using Hierarchical Puncturing
Song-Nam Hong, Min-Oh Jeong
In this paper, we present an efficient method to construct a good rate-compatible punctured polar (RCPP) code. One of the major challenges on the construction of a RCPP code is to…
Successive Cancellation Soft Output Detector For Uplink MU-MIMO Systems With One-bit ADCs
Yun-Seong Cho, Seonho Kim, Song-Nam Hong
In this paper, we present a successive-cancellation-soft-output (SCSO) detector for an uplink multiuser multiple-input-multiple-output (MU-MIMO) system with one-bit analog-to-digit…
One-Bit Sphere Decoding for Uplink Massive MIMO Systems with One-Bit ADCs
Yo-Seb Jeon, Namyoon Lee, Song-Nam Hong +1
This paper presents a low-complexity near-maximum-likelihood-detection (near-MLD) algorithm called one-bit-sphere-decoding for an uplink massive multiple-input multiple-output (MIM…
Uplink Multiuser Massive MIMO Systems with Low-Resolution ADCs: A Coding-Theoretic Approach
Song-Nam Hong, Seonho Kim, Namyoon Lee
This paper considers an uplink multiuser massive multiple-input-multiple-output (MIMO) system with low-resolution analog-to-digital converters (ADCs), in which K users with a singl…
Uplink Multiuser Massive MIMO Systems with One-Bit ADCs: A Coding-Theoretic Viewpoint
Seonho Kim, Namyoon Lee, Songnam Hong
This paper investigates an uplink multiuser massive multiple-input multiple-output (MIMO) system with one-bit analog-to-digital converters (ADCs), in which users with a single-…
Capacity-Achieving Rate-Compatible Polar Codes for General Channels
Marco Mondelli, S. Hamed Hassani, Ivana Marić +2
We present a rate-compatible polar coding scheme that achieves the capacity of any family of channels. Our solution generalizes the previous results [1], [2] that provide capacity-…
MIMO Systems With Low-Resolution ADCs: Linear Coding Approach
Song-Nam Hong, Yo-Seb Jeon, Namyoon Lee
This paper considers a multiple-input multiple-output (MIMO) system with low-resolution analog-to-digital converters (ADCs). In this system, the paper presents a new MIMO detection…
Supervised-Learning-Aided Communication Framework for MIMO Systems with Low-Resolution ADCs
Yo-Seb Jeon, Song-Nam Hong, Namyoon Lee
This paper considers a multiple-input-multiple-output (MIMO) system with low-resolution analog-to-digital converters (ADCs). In this system, we propose a novel communication framew…
Coded Compressive Sensing: A Compute-and-Recover Approach
Namyoon Lee, Song-Nam Hong
In this paper, we propose \textit{coded compressive sensing} that recovers an -dimensional integer sparse signal vector from a noisy and quantized measurement vector whose dimen…
Wireless Multihop Device-to-Device Caching Networks
Sang-Woon Jeon, Song-Nam Hong, Mingyue Ji +2
We consider a wireless device-to-device (D2D) network where nodes are uniformly distributed at random over the network area. We let each node with storage capacity cache fi…
Capacity-Achieving Rate-Compatible Polar Codes
Song-Nam Hong, Dennis Hui, Ivana Marić
We present a method of constructing rate-compatible polar codes that are capacity-achieving with low-complexity sequential decoders. The proposed code construction allows for incre…
A Novel Cooperative Strategy for Wireless Multihop Backhaul Networks
Song-Nam Hong, Ivana Maric, Dennis Hui
The 5G wireless network architecture will bring dense deployments of base stations called {\em small cells} for both outdoors and indoors traffic. The feasibility of their dense de…
Demystifying the Scaling Laws of Dense Wireless Networks: No Linear Scaling in Practice
Song-Nam Hong, Giuseppe Caire
We optimize the hierarchical cooperation protocol of Ozgur, Leveque and Tse, which is supposed to yield almost linear scaling of the capacity of a dense wireless network with the n…