Hyung-Jin CHOI


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 networkD2Dinter-cell discoveryLTE
 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 estimationCSI feedbackD2DLTE
 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 estimationinterference detectionLTE-AdvancedMU-MIMOSIC
 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: 
D2Dfrequency offsetOFDMsingle-tone signalingsynchronization
 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 cancellationLTEOTDOApositioning
 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: 
AGCLTETDDinitial cell searchPSS 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 ICICFRSCMspectral leakagetime-domain weightingiterativeLTE
 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 802.15.4LR-WPAN2.45 GHzfrequency offsetdetection
 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: 
acquisitionFHTRACHSearcherWCDMA
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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: 
WCDMASIR measurementclosed-loop power controlCPICH
 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: 
OFDMwireless MANframe synchronizationFFT 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 decisionquantizationstepsize
 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 estimationvelocity estimationWCDMAFFT
 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: 
beamformingMMSEOFDMtransmit diversityspace-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: 
OFDMtransmit diversity (TD)channel estimationtrigonometric 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: 
WCDMAfrequency synchronizationbase station modemCP-AFCmulti-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 linkW-CDMARayleigh fadingmaximum likelihood estimatorWiener 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 expansionalternating seriesapproximation errorcarrier 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: 
OFDMtransmitter diversityspace-time trellis codechannel 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 systemmixed traffic rateslognormalChernoff bound
 Summary | Full Text:PDF(865.9KB)