Optimal switching thresholds for space-time block coded rate-adaptive M-QAM. - Youngwook Ko; Cihan Tepedelenlioglu (ICASSP (4), 2004)

Rate control using antenna selection for closed-loop spatial multiplexing. - Youngwook Ko; Cihan Tepedelenlioglu (GLOBECOM, 2005)

Distributed Spatial Multiplexing for Uplink Multiuser Systems. - Youngwook Ko; Cihan Tepedelenlioglu (GLOBECOM, 2006)

Orthogonal space-time block coded rate-adaptive modulation with outdated feedback. - Youngwook Ko; Cihan Tepedelenlioglu (IEEE Trans. Wirel. Commun., 2006)

Impact of the Number of users on Error Probabilities in Multiuser Diversity Systems. - Youngwook Ko; Cihan Tepedelenlioglu (CISS, 2007)

Comparison of adaptive beamforming and orthogonal STBC with outdated feedback. - Youngwook Ko; Qian Ma 007; Cihan Tepedelenlioglu (IEEE Trans. Wirel. Commun., 2007)

Threshold-Based Substream Selection for Closed-Loop Spatial Multiplexing. - Youngwook Ko; Cihan Tepedelenlioglu (IEEE Trans. Veh. Technol., 2008)

Distributed closed-loop spatial multiplexing for uplink multiuser systems. - Youngwook Ko; Cihan Tepedelenlioglu (IEEE Trans. Wirel. Commun., 2008)

How Much Multiuser Diversity Gain is Required over Large-Scale Fading? - Youngwook Ko; Sergiy A. Vorobyov; Masoud Ardakani (ICC, 2009)

Power allocation strategies across N orthogonal channels for singe-relay networks at both source and relay. - Youngwook Ko; Masoud Ardakani; Sergiy A. Vorobyov (ICT, 2010)

How much multiuser diversity is required for energy limited multiuser systems? - Youngwook Ko; Sergiy A. Vorobyov; Masoud Ardakani (IEEE Trans. Signal Process., 2010)

A downlink power control scheme for interference avoidance in femtocells. - Talha Zahir; Kamran Arshad; Youngwook Ko; Klaus Moessner (IWCMC, 2011)

Interference management in heterogeneous wireless networks based on context information. - Adrian Kliks; Andreas Zalonis; Nikos Dimitriou; Jad Nasreddine; Fanghua Li; Youngwook Ko (ISWCS, 2012)

Selecting users in energy-efficient collaborative spectrum sensing. - Davood M. Godarzi; Kamran Arshad; Youngwook Ko; Klaus Moessner (WCNC, 2012)

Power Allocation Strategies across N Orthogonal Channels at Both Source and Relay. - Youngwook Ko; Masoud Ardakani; Sergiy A. Vorobyov (IEEE Trans. Commun., 2012)

Maximum Outage Capacity in Dense Indoor Femtocell Networks with Joint Energy and Spectrum Utilization. - Youngwook Ko; Klaus Moessner (IEEE Trans. Wirel. Commun., 2012)

Investigation of secure wireless regions using configurable beamforming on WARP. - Yuanrui Zhang; Bei Yin; Roger F. Woods; Joseph R. Cavallaro; Alan Marshall 001; Youngwook Ko (ACSSC, 2014)

Opportunistic spectrum aggregation for cognitive communications under collision constraints. - Haeyoung Lee; Youngwook Ko; Seiamak Vahid; Klaus Moessner (CrownCom, 2014)

Creating secure wireless regions using configurable beamforming. - Yuanrui Zhang; Alan Marshall 001; Roger F. Woods; Youngwook Ko (PIMRC, 2014)

A Tight Upper Bound on Bit Error Rate of Joint OFDM and Multi-Carrier Index Keying. - Youngwook Ko (IEEE Commun. Lett., 2014)

Compressive sensing based detector for sparse signal modulation in precoded OFDM. - Jinho Choi 001; Youngwook Ko (ICC, 2015)

Sparse multi-carrier index keying OFDM with index separation over correlated sub-carriers. - Youngwook Ko; Jinho Choi 001 (ICTC, 2015)

Low complexity greedy detection method with generalized multicarrier index keying OFDM. - James Crawford; Youngwook Ko (PIMRC, 2015)

On spatial security outage probability derivation of exposure region based beamforming with randomly located eavesdroppers. - Yuanrui Zhang; Youngwook Ko; Roger F. Woods; Alan Marshall 001; Joe Cavallaro; Kaipeng Li (ACSSC, 2016)

A low complexity detector with MRC diversity reception for MCIK-OFDM. - Eleftherios Chatziantoniou; James Crawford; Youngwook Ko (PIMRC, 2016)

Selective multi-carrier index keying OFDM: Error propagation rate with moment generating function. - Youngwook Ko (SPAWC, 2016)

Defining Spatial Security Outage Probability for Exposure Region Based Beamforming. - Yuanrui Zhang; Youngwook Ko; Roger F. Woods; Alan Marshall 001 (CoRR, 2016)

Performance Analysis of a Low-Complexity Detector for MCIK-OFDM Over TWDP Fading. - Eleftherios Chatziantoniou; James Crawford; Youngwook Ko (IEEE Commun. Lett., 2016)

Multi-device selection scheduling in non-identically distributed fading channels. - Youngwook Ko; Atta ul Quddus; Rahim Tafazolli (IET Commun., 2016)

Self-Organization in Mobile Networking Systems. - Hyun-Ho Choi; Seok-Chul Kwon; Youngwook Ko; Jung-Ryun Lee (Mob. Inf. Syst., 2016)

Practical Spectrum Aggregation for Secondary Networks With Imperfect Sensing. - Haeyoung Lee; Youngwook Ko; Seiamak Vahid; Klaus Moessner (IEEE Trans. Veh. Technol., 2016)

Partial relay selection and energy detection for MCIM based dual-hop multiple DF relay network. - James Crawford; Youngwook Ko (SPAWC, 2017)

A closed-form symbol error probability for MCIK-OFDM with frequency diversity. - Thien Van Luong; Youngwook Ko (SPAWC, 2017)

Secure Index and Data Symbol Modulation for OFDM-IM. - Yonggu Lee; Hanseong Jo; Youngwook Ko; Jinho Choi 001 (IEEE Access, 2017)

A Tight Bound on BER of MCIK-OFDM With Greedy Detection and Imperfect CSI. - Thien Van Luong; Youngwook Ko (IEEE Commun. Lett., 2017)

On the SEP Analysis of OFDM Index Modulation With Hybrid Low Complexity Greedy Detection and Diversity Reception. - James Crawford; Eleftherios Chatziantoniou; Youngwook Ko (IEEE Trans. Veh. Technol., 2017)

Defining Spatial Secrecy Outage Probability for Exposure Region-Based Beamforming. - Yuanrui Zhang; Youngwook Ko; Roger F. Woods; Alan Marshall 001 (IEEE Trans. Wirel. Commun., 2017)

Generalized SER Analysis of OFDM Index Modulation for Vehicular D2D Environments. - Eleftherios Chatziantoniou; Youngwook Ko (ICTC, 2018)

Impact of Opportunistic Transmission on MCIK-OFDM: Diversity and Coding Gains. - Thien Van Luong; Youngwook Ko (INISCOM, 2018)

Precoding for Spread OFDM IM. - Thien Van Luong; Youngwook Ko; Jinho Choi 001 (VTC Spring, 2018)

Security Optimization of Exposure Region-Based Beamforming With a Uniform Circular Array. - Yuanrui Zhang; Roger F. Woods; Youngwook Ko; Alan Marshall 001; Junqing Zhang (IEEE Trans. Commun., 2018)

Cooperative OFDM-IM Relay Networks With Partial Relay Selection Under Imperfect CSI. - James Crawford; Youngwook Ko (IEEE Trans. Veh. Technol., 2018)

Impact of CSI Uncertainty on MCIK-OFDM: Tight Closed-Form Symbol Error Probability Analysis. - Thien Van Luong; Youngwook Ko (IEEE Trans. Veh. Technol., 2018)

Spread OFDM-IM With Precoding Matrix and Low-Complexity Detection Designs. - Thien Van Luong; Youngwook Ko (IEEE Trans. Veh. Technol., 2018)

Repeated MCIK-OFDM With Enhanced Transmit Diversity Under CSI Uncertainty. - Thien Van Luong; Youngwook Ko; Jinho Choi 001 (IEEE Trans. Wirel. Commun., 2018)

TCM for OFDM-IM. - Jinho Choi 001; Youngwook Ko (IEEE Wirel. Commun. Lett., 2018)

The BER Analysis of MRC-Aided Greedy Detection for OFDM-IM in Presence of Uncertain CSI. - Thien Van Luong; Youngwook Ko (IEEE Wirel. Commun. Lett., 2018)

Unsupervised Machine Intelligence for Automation of Multi-Dimensional Modulation. - Youngwook Ko; Jinho Choi 001 (IEEE Commun. Lett., 2019)

Deep Learning-Based Detector for OFDM-IM. - Thien Van Luong; Youngwook Ko; Ngo Anh Vien; Duy H. N. Nguyen; Michail Matthaiou (IEEE Wirel. Commun. Lett., 2019)

Power-and-Index based Multiple Access for V2X Networks. - Sunyoung Lee; Mehrdad Dianati; Youngwook Ko; Alexandros Mouzakitis (VTC Spring, 2020)

Deep Energy Autoencoder for Noncoherent Multicarrier MU-SIMO Systems. - Thien Van Luong; Youngwook Ko; Ngo Anh Vien; Michail Matthaiou; Hien Quoc Ngo (IEEE Trans. Wirel. Commun., 2020)

Editorial: Index Modulation for 6G Communications. - Shuping Dang; Marco Di Renzo; Miaowen Wen; Marwa Chafii; Youngwook Ko; Bartolomeu F. Uchôa Filho; Abdelhamid Younis (Frontiers Commun. Networks, 2021)

Do gender equality and work-life balance matter for innovation performance? - Youngwook Ko; Hyesoo Ko; Yanghon Chung; Chungwon Woo (Technol. Anal. Strateg. Manag., 2021)

Deep Learning-Aided Multicarrier Systems. - Thien Van Luong; Youngwook Ko; Michail Matthaiou; Ngo Anh Vien; Minh-Tuan Le; Vu-Duc Ngo (IEEE Trans. Wirel. Commun., 2021)

On Asymmetric Game for NOMA-ALOHA under Fading. - Jinho Choi 001; Youngwook Ko (VTC Spring, 2022)

Reinforcement Learning for NOMA-ALOHA Under Fading. - Youngwook Ko; Jinho Choi 001 (IEEE Trans. Commun., 2022)

Multichannel Relay assisted NOMA-ALOHA with Reinforcement Learning based Random Access. - Haeyoung Lee; Sunyoung Lee; Youngwook Ko (VTC2023-Spring, 2023)

Federated K-Means Clustering for Adaptive OFDM-IM. - Xueyu Wu; Andy M. Tyrrell; Youngwook Ko (IEEE Commun. Lett., 2023)

Decentralized Multi-State Q-Learning for NOMA-ALOHA Systems. - Xueyu Wu; Youngwook Ko; Andy M. Tyrrell (PIMRC, 2024)

Distributed Multi-Agent Reinforcement Learning for Heterogeneous NOMA-ALOHA Systems. - Xueyu Wu; Youngwook Ko; Andy M. Tyrrell (IEEE Trans. Cogn. Commun. Netw., 2025)