Hyung-Jin CHOI

A New D2D-Aided OTDOA Positioning Method for 3GPP LTE System
Kyunghoon LEE Dong Hun LEE Wonjun HWANG Hyung-Jin CHOI 
Publication:   
Publication Date: 2017/03/01
Vol. E100-B  No. 3  pp. 473-483
Type of Manuscript:  PAPER
Category: Space Utilization Systems for Communications
Keyword: 
D2D, LTE, OTDOA, positioning, trilateration, 
 Summary | Full Text:PDF(3.6MB)
A Novel Discovery Channel Scheduling for Inter-Cell Device-to-Device Discovery in 3GPP LTE Asynchronous Network
Kyunghoon LEE Wonjun HWANG Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/02/01
Vol. E98-B  No. 2  pp. 370-378
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
asynchronous network, D2D, inter-cell discovery, LTE, 
 Summary | Full Text:PDF(2.9MB)
An Efficient Channel Estimation and CSI Feedback Method for Device-to-Device Communication in 3GPP LTE System
Kyunghoon LEE Wipil KANG Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/11/01
Vol. E97-B  No. 11  pp. 2524-2533
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
channel estimation, CSI feedback, D2D, LTE, 
 Summary | Full Text:PDF(3MB)
An Interference-Robust Channel Estimation Method for Transparent MU-MIMO Transmission in LTE-Advanced System
Won-Jun HWANG Jun-Hee JANG Seong-Woo AHN Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/07/01
Vol. E97-B  No. 7  pp. 1412-1421
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
channel estimation, interference detection, LTE-Advanced, MU-MIMO, SIC, 
 Summary | Full Text:PDF(3MB)
A New Non-data Aided Frequency Offset Estimation Method for OFDM Based Device-to-Device Systems
Kyunghoon WON Dongjun LEE Wonjun HWANG Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/04/01
Vol. E97-B  No. 4  pp. 896-904
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
D2D, frequency offset, OFDM, single-tone signaling, synchronization, 
 Summary | Full Text:PDF(2.4MB)
An Enhanced Observed Time Difference of Arrival Based Positioning Method for 3GPP LTE System
Kyung-Hoon WON Jun-Hee JANG Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/03/01
Vol. E95-B  No. 3  pp. 961-971
Type of Manuscript:  PAPER
Category: Sensing
Keyword: 
interference cancellation, LTE, OTDOA, positioning, 
 Summary | Full Text:PDF(2.6MB)
An Enhanced Automatic Gain Control Algorithm for Initial Cell Search in 3GPP LTE TDD System
Jun-Hee JANG Keun-Dea KIM Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3606-3615
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
AGC, LTE, TDD, initial cell search, PSS detection, 
 Summary | Full Text:PDF(2.1MB)
Iterative Receiver with Enhanced Spatial Covariance Matrix Estimation in Asynchronous Interference Environment for 3GPP LTE MIMO-OFDMA System
Jun-Hee JANG Jung-Su HAN Sung-Soo KIM Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/06/01
Vol. E92-B  No. 6  pp. 2142-2152
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
asynchronous ICI, CFR, SCM, spectral leakage, time-domain weighting, iterative, LTE, 
 Summary | Full Text:PDF(3.1MB)
A Low-Complexity Frequency Offset Insensitive Detection for 2.45 GHz LR-WPAN
Jung-Su HAN Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/07/01
Vol. E91-B  No. 7  pp. 2205-2213
Type of Manuscript:  PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
IEEE 802.15.4, LR-WPAN, 2.45 GHz, frequency offset, detection, 
 Summary | Full Text:PDF(1.2MB)
Design of High-Speed Preamble Searcher for RACH Preamble Structure in WCDMA Reverse Link Receiver
Eun-Sun JUNG Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/11/01
Vol. E89-B  No. 11  pp. 2990-2997
Type of Manuscript:  PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
acquisition, FHT, RACH, Searcher, WCDMA, 
 Summary | Full Text:PDF(14.8MB)
Robust SIR Measurement Algorithm with Closed Loop Power Control in High Speed Mobile Channel Environment
Jung-Su HAN Joo-Hyun DO Kyung-Sup KWAK Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/10/01
Vol. E89-B  No. 10  pp. 2819-2827
Type of Manuscript:  PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
WCDMA, SIR measurement, closed-loop power control, CPICH, 
 Summary | Full Text:PDF(1.3MB)
A Robust Timing Synchronization Algorithm for OFDM Systems over Multipath Rayleigh Fading Channels
Jung-Sun UM Se-Bin IM Sung-Soo KIM Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/06/01
Vol. E89-A  No. 6  pp. 1705-1709
Type of Manuscript:  Special Section LETTER (Special Section on Papers Selected from 2005 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC2005))
Category: 
Keyword: 
OFDM, wireless MAN, frame synchronization, FFT timing synchronization, 
 Summary | Full Text:PDF(358.7KB)
On Optimal Stepsize for Soft Decision Viterbi Decoding
Eui-Cheol LIM Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/12/01
Vol. E88-B  No. 12  pp. 4651-4654
Type of Manuscript:  LETTER
Category: Fundamental Theories for Communications
Keyword: 
soft decision, quantization, stepsize, 
 Summary | Full Text:PDF(283KB)
A Velocity Estimation-Based Channel Estimator for WCDMA Forward Link Receiver
Joo-Hyun DO Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/11/01
Vol. E88-B  No. 11  pp. 4373-4377
Type of Manuscript:  LETTER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
channel estimation, velocity estimation, WCDMA, FFT, 
 Summary | Full Text:PDF(531.4KB)
On Beamforming for Space-Time Block Coded OFDM Systems in Multipath Fading Channels
Sang-Mun LEE Byeong-Ho YOON Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/03/01
Vol. E88-B  No. 3  pp. 1182-1190
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
beamforming, MMSE, OFDM, transmit diversity, space-time block code, 
 Summary | Full Text:PDF(1.2MB)
Channel Estimation Based on Trigonometric Polynomial Approximation in OFDM Systems with Transmit Diversity
Sang-Mun LEE Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/09/01
Vol. E86-B  No. 9  pp. 2788-2791
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
OFDM, transmit diversity (TD), channel estimation, trigonometric polynomial, 
 Summary | Full Text:PDF(190.5KB)
The Modified CP-AFC with Multi-Stage Tracking Mode for WCDMA Reverse Link Receiver
Joo-Hyun DO Young-Yong LEE Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/06/01
Vol. E86-A  No. 6  pp. 1397-1404
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from 2002 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2002))
Category: 
Keyword: 
WCDMA, frequency synchronization, base station modem, CP-AFC, multi-stage tracking, 
 Summary | Full Text:PDF(1.1MB)
Performance Analysis of Channel Estimators for Forward Link W-CDMA under Multipath Rayleigh Fading Channels
Seok-Jun KO Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/04/01
Vol. E86-B  No. 4  pp. 1212-1223
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
coherent forward link, W-CDMA, Rayleigh fading, maximum likelihood estimator, Wiener filter, 
 Summary | Full Text:PDF(874.9KB)
Approximation Algorithm of Series Expansion for Digital System Implementation
Ki-Yun KIM Hyung-Jin CHOI Ho KIM 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/11/01
Vol. E85-A  No. 11  pp. 2532-2537
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
series expansion, alternating series, approximation error, carrier recovery, 
 Summary | Full Text:PDF(593.4KB)
On Channel Estimation for Space-Time Trellis Coded OFDM Systems
Sang-Mun LEE Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/11/01
Vol. E85-B  No. 11  pp. 2353-2361
Type of Manuscript:  PAPER
Category: Fundamental Theories
Keyword: 
OFDM, transmitter diversity, space-time trellis code, channel estimation, 
 Summary | Full Text:PDF(934.8KB)
Forward Link Erlang Capacity of the IMT-2000 Hierarchical Cellular System with Mixed Traffic Rates
Young-Yong LEE Sang-Mun LEE Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/06/01
Vol. E85-A  No. 6  pp. 1289-1298
Type of Manuscript:  Special Section PAPER (Special Section on Papers Selected from 2001 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2001))
Category: 
Keyword: 
hierarchical cellular system, mixed traffic rates, lognormal, Chernoff bound, 
 Summary | Full Text:PDF(865.9KB)