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 (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)

Development of Radio Environment Map Enabled Case- and Knowledge-Based Learning Algorithms for IEEE 802.22 WRAN Cognitive Engines. - Youping Zhao; Joseph D. Gaeddert; Lizdabel Morales-Tirado; Kyung Kyoon Bae; Jung-Sun Um; Jeffrey H. Reed (CrownCom, 2007)

Design and Verification of IEEE 802.22 WRAN Physical Layer. - Sung-Hyun Hwang; Jung-Sun Um; Myung Sun Song; Chang-Joo Kim; Hyung Rae Park; Yun Hee Kim (CrownCom, 2008)

Adaptive Resource Allocation for OFDMA with Mixed Frame Structure. - Jin Soo Wang; Sung Bo Sim; Jae Cheol Park; Jung-Sun Um; Chang-Joo Kim; Yun Hee Kim (VTC Spring, 2009)

Cognitive Radio test-bed based on ECMA-392 International Standard. - A. Antony Franklin; Jin-Suk Pak; Hoiyoon Jung; SangWon Kim; Sung-Jin You; Jung-Sun Um; Sunmin Lim; Gwangzeen Ko; Sung-Hyun Hwang; Byung Jang Jeong; Myung Sun Song; Chang-Joo Kim (ISWCS, 2010)

A Novel Transmitter and Receiver Structure for Cognitive Radio Based OFDM Systems. - Jung-Sun Um; Sung-Hyun Hwang; Chang-Joo Kim; Byung Jang Jeong (IEICE Trans. Commun., 2011)

A comparison of PHY layer on the Ecma-392 and IEEE 802.1 laf standards. - Jung-Sun Um; Sung-Hyun Hwang; Byung Jang Jeong (CrownCom, 2012)

GSVD based multi-user multi-stream MIMO linear precoding with limited feedback. - Jaehyun Park 001; Jung-Sun Um; Yunju Park; Byung Jang Jeong (PIMRC, 2012)

Low complexity spectrum sensing algorithm with integrated preprocessing for multi-channel detection. - Hoiyoon Jung; Jung-Sun Um; Byung Jang Jeong (ICTC, 2013)

Advanced cognitive radio test-bed with carrier aggregation in TV white space. - Jin-Suk Pak; Jung-Sun Um; Hoiyoon Jung; SangWon Kim; Byung Jang Jeong (CRAB@MobiCom, 2013)

Dynamic compressive spectrum sensing method using adaptive compression sequences. - Hoiyoon Jung; Jung-Sun Um; Seungkeun Park; Hyung Do Choi (ICTC, 2014)

Compressive spectrum sensing with sequences considering cross-correlation in frequency domain. - Hoiyoon Jung; Jung-Sun Um; Seungkeun Park; Hyung Do Choi (ICTC, 2014)

Sleeve monopole antenna for CA and MIMO on TV white space system. - Jung-Sun Um; Hoiyoon Jung; SangWon Kim; Seung Keun Park (ICTC, 2014)

Compressive spectrum sensing algorithm based on robust detection criterion with ratio of residual matrix. - Hoiyoon Jung; Jung-Sun Um; Byung Jang Jeong; Hyung Do Choi (ICUFN, 2014)

Development and performance improvement of cognitive radio testbed on TV white space. - Jung-Sun Um; SangWon Kim; Hoiyoon Jung; Jin-Suk Pak; Byung Jang Jeong (WCNC, 2014)

Optimal throughput analysis of a super dense wireless network with the Renewal Access Protocol. - Yunbae Kim; Ganguk Hwang; Jung-Sun Um; Sungjin Yoo; Hoiyoon Jung; Seungkeun Park (ICC Workshops, 2015)

Implementation of sensing module for spectrum sharing in TV white space. - Hoiyoon Jung; Sunmin Lim; Jung-Sun Um; Seungkeun Park (ICCE, 2015)

A design approach of radio frequency module for TV white space based on filter bank. - Kyu-Min Kang; Jung-Sun Um; Jae Cheol Park; Byung Jang Jeong (ICCE, 2015)

Throughput enhancement with carrier selection for LTE in unlicensed band. - Hoiyoon Jung; Jung-Sun Um; Sungjin Yoo; Seungkeun Park (ICTC, 2015)

Analysis of channel access mechanism on 5 GHz unlicensed band. - Jung-Sun Um; Seungkeun Park; Yunbae Kim (ICTC, 2015)

Optimum transmission of secondary user for spectrum sharing on interference channel. - Jung-Sun Um; Hyeyeon Kwon; Seungkeun Park; Jaehyun Park 001 (ICTC, 2016)

Multi-antenna-based transmission strategy in 5 GHz unlicensed band. - Jung-Sun Um; Jaehyun Park 001; Seungkeun Park (ICUFN, 2016)

Location-Probability-Based Transmission Strategy for White Space Devices With Multiple Antennas in TV White Space. - Jung-Sun Um; Jaehyun Park 001; Joohwan Chun; Seungkeun Park (IEEE Trans. Veh. Technol., 2016)

Throughput Performance Optimization of Super Dense Wireless Networks With the Renewal Access Protocol. - Yunbae Kim; Ganguk Hwang; Jung-Sun Um; Sungjin Yoo; Hoiyoon Jung; Seungkeun Park (IEEE Trans. Wirel. Commun., 2016)

Performance analysis of the key aspects affecting capacity of 4G LTE networks. - Igor Kim; Jung-Sun Um; Seungkeun Park (ICTC, 2017)

Implementation and performance evaluation of 256-QAM in vienna system level simulator. - Igor Kim; Jung-Sun Um; Seungkeun Park (ICACT, 2018)

Anticipating Spectral Efficiency of 4G LTE Networks in Korea. - Igor Kim; Jung-Sun Um; Seungkeun Park (ICTC, 2018)

A Method for Analyzing Spectral Efficiency using Real-Field Measurement Data. - Jung-Sun Um; Igor Kim; Seungkeun Park (ICTC, 2018)

Implementation of Platform for Measurement and Analysis on LTE Traffic and Radio Resource Utilization. - Jung-Sun Um; Igor Kim; Seungkeun Park (ICCE, 2019)

Impact of Common Preamble on Coexistence between Wi-Fi and DSRC Devices. - Igor Kim; Jung-Sun Um; Seungkeun Park (ICTC, 2019)

Hidden Markov Model based Analysis on the MCS Index of LTE using PDCCH Measurement Data. - Yunbae Kim; Jung-Sun Um; Igor Kim; Seungkeun Park (ICUFN, 2019)

Implementation of SDR-based 5G NR Cell Search Equipment. - Igor Kim; Jung-Sun Um; Seungkeun Park (ICACT, 2020)

SDR-based 5G NR Control Channel Analysis Equipment for Network Monitoring. - Igor Kim; Jung-Sun Um; Seungkeun Park (ICTC, 2020)

Measurement based LTE Resource Block Sharing for Inter-Operators: PS-LTE and LTE-R. - Jung-Sun Um; Igor Kim; Seungkeun Park (ICTC, 2020)

Simulation-based Study of LPI Interference on Fixed Microwave links in 6GHz Band. - Igor Kim; Jung-Sun Um; Seungkeun Park (ICTC, 2021)

Scheme for Mitigating the Interference by Violation of Indoor-only Operation in the 6 GHz Band. - Jung-Sun Um; Igor Kim; Bongsu Kim; Seungkeun Park (ICTC, 2021)

Impact of Multiple Transmissions using Incremental Redundancy for 5G-MBS. - Jung-Sun Um; Hoiyoon Jung; Sung-Ik Park; Namho Hur (BMSB, 2022)