A projection-based semi-blind channel estimation for long-code WCDMA. - Youngchul Sung; Lang Tong 001 (ICASSP, 2002)

Semiblind channel estimation for space-time coded WCDMA. - Youngchul Sung; Lang Tong 001; Ananthram Swami (ICC, 2003)

Blind decorrelating RAKE receivers for long-code WCDMA. - Lang Tong 001; Alle-Jan van der Veen; Patrick M. Dewilde; Youngchul Sung (IEEE Trans. Signal Process., 2003)

Blind Channel Estimation for Space-Time Coded WCDMA. - Youngchul Sung; Lang Tong 001; Ananthram Swami (EURASIP J. Wirel. Commun. Netw., 2004)

Tracking of fast-fading channels in long-code CDMA. - Youngchul Sung; Lang Tong 001 (IEEE Trans. Signal Process., 2004)

A large deviations approach to sensor scheduling for detection of correlated random fields. - Youngchul Sung; Lang Tong 001; H. Vincent Poor (ICASSP (3), 2005)

Sensor configuration and activation for field detection in large sensor arrays. - Youngchul Sung; Lang Tong 001; H. Vincent Poor (IPSN, 2005)

Neyman-Pearson detection of Gauss-Markov signals in noise: closed-form error exponent and properties. - Youngchul Sung; Lang Tong 001; H. Vincent Poor (ISIT, 2005)

Optimal and Suboptimal Detection of Gaussian Signals in Noise: Asymptotic Relative Efficiency - Youngchul Sung; Lang Tong 001; H. Vincent Poor (CoRR, 2005)

Asymptotic locally optimal detector for large-scale sensor networks under the Poisson regime. - Youngchul Sung; Lang Tong 001; Ananthram Swami (IEEE Trans. Signal Process., 2005)

Signal processing for application-specific ad hoc networks. - Youngchul Sung; Saswat Misra; Lang Tong 001; Anthony Ephremides (IEEE Signal Process. Mag., 2006)

Neyman-pearson detection of gauss-Markov signals in noise: closed-form error exponentand properties. - Youngchul Sung; Lang Tong 001; H. Vincent Poor (IEEE Trans. Inf. Theory, 2006)

Cooperative routing for distributed detection in large sensor networks. - Youngchul Sung; Saswat Misra; Lang Tong 001; Anthony Ephremides (IEEE J. Sel. Areas Commun., 2007)

Analysis of CSMA/CA Systems under Carrier Sensing Error: Throughput, Delay and Sensitivity. - Jo Woon Chong; Youngchul Sung; Dan Keun Sung (GLOBECOM, 2008)

Large deviations analysis for the detection of 2D hidden Gauss-Markov random fields using sensor networks. - Youngchul Sung; H. Vincent Poor; Heejung Yu (ICASSP, 2008)

On optimal operating characteristics of sensing and training for cognitive radios. - Heejung Yu; Youngchul Sung; Yong Hoon Lee (ICASSP, 2008)

Information, energy and density for Ad Hoc sensor networks over correlated random fields: Large deviations analysis. - Youngchul Sung; Heejung Yu; H. Vincent Poor (ISIT, 2008)

Optimal Node Density for Two-Dimensional Sensor Arrays - Youngchul Sung; H. Vincent Poor; Heejung Yu (CoRR, 2008)

Sensor Configuration and Activation for Field Detection in Large Sensor Arrays. - Youngchul Sung; Xin Zhang 004; Lang Tong 001; H. Vincent Poor (IEEE Trans. Signal Process., 2008)

Upper bound for the loss factor of energy detection of random signals in multipath fading cognitive radios. - Yirang Lim; Youngchul Sung (ICASSP, 2009)

Multi-band CSMA/CA-based cognitive radio networks. - Jo Woon Chong; Youngchul Sung; Dan Keun Sung (IWCMC, 2009)

Amplify-Forward Relays with Superimposed Pilot Signals for Frequency-Selective Fading Channels. - Haksoo Kim; Sungho Choi; Heejung Yu; Youngchul Sung; Yong Hoon Lee (VTC Spring, 2009)

Signal processing advances for 3G WCDMA: From rake receivers to blind techniques. - Youngchul Sung; Yirang Lim; Lang Tong 001; Alle-Jan van der Veen (IEEE Commun. Mag., 2009)

RawPEACH: Multiband CSMA/CA-based cognitive radio networks. - Jo Woon Chong; Youngchul Sung; Dan Keun Sung (J. Commun. Networks, 2009)

Upper Bound for the Loss of Energy Detection of Signals in Multipath Fading Channels. - Yirang Lim; Juho Park; Youngchul Sung (IEEE Signal Process. Lett., 2009)

How much information can one get from a wireless ad hoc sensor network over a correlated random field? - Youngchul Sung; H. Vincent Poor; Heejung Yu (IEEE Trans. Inf. Theory, 2009)

Adaptive beam tracking for interference alignment for multiuser time-varying MIMO interference channels. - Heejung Yu; Youngchul Sung; Haksoo Kim; Yong Hoon Lee (ICASSP, 2010)

On Beamformer Design for Multiuser MIMO Interference Channels - Juho Park; Youngchul Sung; H. Vincent Poor (CoRR, 2010)

Least squares approach to joint beam design for interference alignment in multiuser multi-input multi-output interference channels. - Heejung Yu; Youngchul Sung (IEEE Trans. Signal Process., 2010)

Cross-Layer Performance Analysis for CSMA/CA Protocols: Impact of Imperfect Sensing. - Jo Woon Chong; Dan Keun Sung; Youngchul Sung (IEEE Trans. Veh. Technol., 2010)

Sum Outage-Rate Maximization for MIMO Interference Channels. - Juho Park; Donggun Kim 001; Youngchul Sung (GLOBECOM, 2011)

Adaptive beam tracking for interference alignment in time-varying MIMO interference channels: Conjugate gradient approach. - Junse Lee; Heejung Yu; Youngchul Sung; Yong Hoon Lee (ICASSP, 2011)

Coordinated beamforming with relaxed zero forcing. - Gilwon Lee; Juho Park; Youngchul Sung; Masahiro Yukawa (WCSP, 2011)

The capacity for the linear time-invariant Gaussian relay channel - Youngchul Sung; Cheulsoon Kim (CoRR, 2011)

Filter-and-forward relay design for OFDM systems for quality-of-service enhancement. - Donggun Kim 001; Junyeong Seo; Youngchul Sung (APSIPA, 2012)

Time-Dependent User Profiling for TV Recommendation. - Jinoh Oh; Youngchul Sung; Jinha Kim; Muhammad Humayoun; Young-Ho Park 003; Hwanjo Yu (CGC, 2012)

A new approach to beamformer design for massive MIMO systems based on k-Regularity. - Gilwon Lee; Juho Park; Youngchul Sung; Junyeong Seo (GLOBECOM Workshops, 2012)

The Bahadur efficiency for energy detection of stationary Gaussian processes. - Yuni Lee; Youngchul Sung (ICASSP, 2012)

Asymmetric complex signaling for full-duplex decode-and-forward relay channels. - Cheulsoon Kim; Eui-Rim Jeong; Youngchul Sung; Yong Hoon Lee (ICTC, 2012)

Coordinate Beamforming with Relaxed Zero Forcing: The Sequential Orthogonal Projection Combining Method and Rate Control - Juho Park; Gilwon Lee; Youngchul Sung; Masahiro Yukawa (CoRR, 2012)

An Efficient Algorithm for Zero-Forcing Coordinated Beamforming. - Haksoo Kim; Heejung Yu; Youngchul Sung; Yong Hoon Lee (IEEE Commun. Lett., 2012)

Guest Editorial Theories and Methods for Advanced Wireless Relays - Issue I. - Yingbo Hua; Daniel W. Bliss; Saeed Gazor; Yue Rong; Youngchul Sung (IEEE J. Sel. Areas Commun., 2012)

Generalized Chernoff Information for Mismatched Bayesian Detection and Its Application to Energy Detection. - Yuni Lee; Youngchul Sung (IEEE Signal Process. Lett., 2012)

A Nonlinear Transceiver Architecture for Overloaded Multiuser MIMO Interference Channels. - Youngseok Oh; Heejung Yu; Yong Hoon Lee; Youngchul Sung (IEEE Trans. Commun., 2012)

A Joint Time-Invariant Filtering Approach to the Linear Gaussian Relay Problem. - Cheulsoon Kim; Youngchul Sung; Yong Hoon Lee (IEEE Trans. Signal Process., 2012)

Beam Tracking for Interference Alignment in Slowly Fading MIMO Interference Channels: A Perturbations Approach Under a Linear Framework. - Heejung Yu; Youngchul Sung; Haksoo Kim; Yong Hoon Lee (IEEE Trans. Signal Process., 2012)

Outage Probability and Outage-Based Robust Beamforming for MIMO Interference Channels with Imperfect Channel State Information. - Juho Park; Youngchul Sung; Donggun Kim 001; H. Vincent Poor (IEEE Trans. Wirel. Commun., 2012)

Optimal pilot beam pattern design for massive MIMO systems. - Song Noh; Michael D. Zoltowski; Youngchul Sung; David J. Love (ACSSC, 2013)

An efficient parameterization for Pareto-optimal beamformers for k-user MIMO interference channels. - Juho Park; Youngchul Sung (ICASSP, 2013)

Guest Editorial: Theories and Methods for Advanced Wireless Relays - Issue II. - Yingbo Hua; Daniel W. Bliss; Saeed Gazor; Yue Rong; Youngchul Sung (IEEE J. Sel. Areas Commun., 2013)

Coordinated Beamforming With Relaxed Zero Forcing: The Sequential Orthogonal Projection Combining Method and Rate Control. - Juho Park; Gilwon Lee; Youngchul Sung; Masahiro Yukawa (IEEE Trans. Signal Process., 2013)

On the Pareto-Optimal Beam Structure and Design for Multi-User MIMO Interference Channels. - Juho Park; Youngchul Sung (IEEE Trans. Signal Process., 2013)

Dual-Domain Adaptive Beamformer Under Linearly and Quadratically Constrained Minimum Variance. - Masahiro Yukawa; Youngchul Sung; Gilwon Lee (IEEE Trans. Signal Process., 2013)

Filter-and-Forward Transparent Relay Design for OFDM Systems. - Donggun Kim 001; Junyeong Seo; Youngchul Sung (IEEE Trans. Veh. Technol., 2013)

Training signal design for channel estimation in massive MIMO systems. - Song Noh; Michael D. Zoltowski; Youngchul Sung; David J. Love (ICASSP, 2014)

An extended least difference greedy clique-cover algorithm for index coding. - Sangwoon Kwak; Jungho So; Youngchul Sung (ISIT, 2014)

Some new results on index coding when the number of data is less than the number of receivers. - Jungho So; Sangwoon Kwak; Youngchul Sung (ISIT, 2014)

Asymptotically optimal simple user scheduling for massive MIMO downlink with two-stage beamforming. - Gilwon Lee; Youngchul Sung (SPAWC, 2014)

Randomly-Directional Beamforming in Millimeter-Wave Multi-User MIMO Downlink. - Gilwon Lee; Youngchul Sung; Junyeong Seo (CoRR, 2014)

Pilot Beam Pattern Design for Channel Estimation in Massive MIMO Systems. - Song Noh; Michael D. Zoltowski; Youngchul Sung; David James Love (IEEE J. Sel. Top. Signal Process., 2014)

Filter-And-Forward Relay Design for MIMO-OFDM Systems. - Donggun Kim 001; Youngchul Sung; Jihoon Chung (IEEE Trans. Commun., 2014)

Beam Tracking for Interference Alignment in Time-Varying MIMO Interference Channels: A Conjugate-Gradient-Based Approach. - Junse Lee; Heejung Yu; Youngchul Sung (IEEE Trans. Veh. Technol., 2014)

A New Precoder Design for Blind Channel Estimation in MIMO-OFDM Systems. - Song Noh; Youngchul Sung; Michael D. Zoltowski (IEEE Trans. Wirel. Commun., 2014)

How many users are needed for non-trivial performance of random beamforming in highly-directional mm-wave MIMO downlink? - Gilwon Lee; Youngchul Sung; Junyeong Seo (ITW Fall, 2015)

On the performance of randomly directional beamforming between line-of-sight and rich scattering channels. - Gilwon Lee; Youngchul Sung; Marios Kountouris (SPAWC, 2015)

Pilot beam sequence design for channel estimation in millimeter-wave MIMO systems: A POMDP framework. - Junyeong Seo; Youngchul Sung; Gilwon Lee; Donggun Kim 001 (SPAWC, 2015)

Enhancing Non-Orthogonal Multiple Access By Forming Relaying Broadcast Channels. - Jungho So; Youngchul Sung (CoRR, 2015)

Pilot Signal Design for Massive MIMO Systems: A Received Signal-To-Noise-Ratio-Based Approach. - Jungho So; Donggun Kim 001; Yuni Lee; Youngchul Sung (IEEE Signal Process. Lett., 2015)

Two-Stage Beamformer Design for Massive MIMO Downlink By Trace Quotient Formulation. - Donggun Kim 001; Gilwon Lee; Youngchul Sung (IEEE Trans. Commun., 2015)

Impact of training on mmWave multi-user MIMO downlink. - Gilwon Lee; Jungho So; Youngchul Sung (GlobalSIP, 2016)

Improving Non-Orthogonal Multiple Access by Forming Relaying Broadcast Channels. - Jungho So; Youngchul Sung (IEEE Commun. Lett., 2016)

On the Performance of Random Beamforming in Sparse Millimeter Wave Channels. - Gilwon Lee; Youngchul Sung; Marios Kountouris (IEEE J. Sel. Top. Signal Process., 2016)

Training Beam Sequence Design for Millimeter-Wave MIMO Systems: A POMDP Framework. - Junyeong Seo; Youngchul Sung; Gilwon Lee; Donggun Kim 001 (IEEE Trans. Signal Process., 2016)

Randomly-Directional Beamforming in Millimeter-Wave Multiuser MISO Downlink. - Gilwon Lee; Youngchul Sung; Junyeong Seo (IEEE Trans. Wirel. Commun., 2016)

Hybrid beamformer design for mmwave wideband multi-user MIMO-OFDM systems : (Invited paper). - Yongjin Kwon; Jihoon Chung; Youngchul Sung (SPAWC, 2017)

A new transceiver architecture for multi-user MIMO communication based on mixture of linear and non-linear reception. - Junyeong Seo; Youngchul Sung (SPAWC, 2017)

Beam Design and User Scheduling for Non-Orthogonal Multiple Access with Multiple Antennas Based on Pareto-Optimality. - Junyeong Seo; Youngchul Sung (CoRR, 2017)

Multi-Batch Experience Replay for Fast Convergence of Continuous Action Control. - Seungyul Han; Youngchul Sung (CoRR, 2017)

Filter Design for Generalized Frequency-Division Multiplexing. - Seungyul Han; Youngchul Sung; Yong Hoon Lee (IEEE Trans. Signal Process., 2017)

5G K-Simulator: Link Level Simulator for 5G. - Giseung Park; Sangwoo Park 002; Junyeong Seo; Jungho So; Woowan Wang; Seungmin Yoo; Seung-Chan Lim; Jihoon Chung; Myungsik Cho; Daehan Ha; Joonhyuk Kang; Hyuncheol Park; et al. (DySPAN, 2018)

Common Pilot Signal Design for Non-Orthogonal Multiple Access in 5G. - Jungho So; Youngchul Sung (TENCON, 2018)

A High-Diversity Transceiver Design for K-User MISO Broadcast Channels. - Junyeong Seo; Youngchul Sung; Hamid Jafarkhani (CoRR, 2018)

Tomlinson-Harashima Precoding-Aided Multi-Antenna Non-Orthogonal Multiple Access. - Jungho So; Youngchul Sung; Yong Hoon Lee (CoRR, 2018)

A New Approach to User Scheduling in Massive Multi-User MIMO Broadcast Channels. - Gilwon Lee; Youngchul Sung (IEEE Trans. Commun., 2018)

Beam Design and User Scheduling for Nonorthogonal Multiple Access With Multiple Antennas Based on Pareto Optimality. - Junyeong Seo; Youngchul Sung (IEEE Trans. Signal Process., 2018)

Message-Dropout: An Efficient Training Method for Multi-Agent Deep Reinforcement Learning. - Woojun Kim; Myungsik Cho; Youngchul Sung (AAAI, 2019)

Dimension-Wise Importance Sampling Weight Clipping for Sample-Efficient Reinforcement Learning. - Seungyul Han; Youngchul Sung (ICML, 2019)

A High-Diversity Transceiver Design for MISO Broadcast Channels. - Junyeong Seo; Youngchul Sung; Hamid Jafarkhani (IEEE Trans. Wirel. Commun., 2019)

Population-Guided Parallel Policy Search for Reinforcement Learning. - Whiyoung Jung; Giseung Park; Youngchul Sung (ICLR, 2020)

A Maximum Mutual Information Framework for Multi-Agent Reinforcement Learning. - Woojun Kim; Whiyoung Jung; Myungsik Cho; Youngchul Sung (CoRR, 2020)

A Reinforcement Learning Formulation of the Lyapunov Optimization: Application to Edge Computing Systems with Queue Stability. - Sohee Bae; Seungyul Han; Youngchul Sung (CoRR, 2020)

Fast Beam Search and Refinement for Millimeter-Wave Massive MIMO Based on Two-Level Phased Arrays. - Song Noh; Jiho Song; Youngchul Sung (IEEE Trans. Wirel. Commun., 2020)

Training Signal Design for Sparse Channel Estimation in Millimeter-Wave Communication with Intelligent Reflecting Surfaces. - Song Noh; Heejung Yu; Youngchul Sung (ICC Workshops, 2021)

Communication in Multi-Agent Reinforcement Learning: Intention Sharing. - Woojun Kim; Jongeui Park; Youngchul Sung (ICLR, 2021)

Diversity Actor-Critic: Sample-Aware Entropy Regularization for Sample-Efficient Exploration. - Seungyul Han; Youngchul Sung (ICML, 2021)

A Max-Min Entropy Framework for Reinforcement Learning. - Seungyul Han; Youngchul Sung (NeurIPS, 2021)

Blockwise Sequential Model Learning for Partially Observable Reinforcement Learning. - Giseung Park; Sungho Choi; Youngchul Sung (AAAI, 2022)

Robust Imitation Learning against Variations in Environment Dynamics. - Jongseong Chae; Seungyul Han; Whiyoung Jung; Myungsik Cho; Sungho Choi; Youngchul Sung (ICML, 2022)

MASER: Multi-Agent Reinforcement Learning with Subgoals Generated from Experience Replay Buffer. - Jeewon Jeon; Woojun Kim; Whiyoung Jung; Youngchul Sung (ICML, 2022)

Quantile Constrained Reinforcement Learning: A Reinforcement Learning Framework Constraining Outage Probability. - Whiyoung Jung; Myungsik Cho; Jongeui Park; Youngchul Sung (NeurIPS, 2022)

Training Signal Design for Sparse Channel Estimation in Intelligent Reflecting Surface-Assisted Millimeter-Wave Communication. - Song Noh; Heejung Yu; Youngchul Sung (IEEE Trans. Wirel. Commun., 2022)

Channel Estimation Techniques for RIS-Assisted Communication: Millimeter-Wave and Sub-THz Systems. - Song Noh; Junse Lee; Gilwon Lee; Kyungsik Seo; Youngchul Sung; Heejung Yu (IEEE Veh. Technol. Mag., 2022)

A Variational Approach to Mutual Information-Based Coordination for Multi-Agent Reinforcement Learning. - Woojun Kim; Whiyoung Jung; Myungsik Cho; Youngchul Sung (AAMAS, 2023)

Parameter Sharing with Network Pruning for Scalable Multi-Agent Deep Reinforcement Learning. - Woojun Kim; Youngchul Sung (AAMAS, 2023)

LESSON: Learning to Integrate Exploration Strategies for Reinforcement Learning via an Option Framework. - Woojun Kim; Jeonghye Kim; Youngchul Sung (ICML, 2023)

An Adaptive Entropy-Regularization Framework for Multi-Agent Reinforcement Learning. - Woojun Kim; Youngchul Sung (ICML, 2023)

Domain Adaptive Imitation Learning with Visual Observation. - Sungho Choi; Seungyul Han; Woojun Kim; Jongseong Chae; Whiyoung Jung; Youngchul Sung (NeurIPS, 2023)

Sample-Efficient and Safe Deep Reinforcement Learning via Reset Deep Ensemble Agents. - Woojun Kim; Yongjae Shin; Jongeui Park; Youngchul Sung (NeurIPS, 2023)

Parameterizing Non-Parametric Meta-Reinforcement Learning Tasks via Subtask Decomposition. - Suyoung Lee; Myungsik Cho; Youngchul Sung (NeurIPS, 2023)

Enabling technologies for AI empowered 6G massive radio access networks. - Md. Shahjalal; Woojun Kim; Waqas Khalid; Seokjae Moon; Murad Khan; Shuzhi Liu; Suhyeon Lim; Eunjin Kim; Deok Won Yun; Joohyun Lee; Won Cheol Lee; Seung-Hoon Hwang; et al. (ICT Express, 2023)

Joint Direct and Indirect Channel Estimation for RIS-Assisted Millimeter-Wave Systems Based on Array Signal Processing. - Song Noh; Kyungsik Seo; Youngchul Sung; David J. Love; Junse Lee; Heejung Yu (IEEE Trans. Wirel. Commun., 2023)

Decision ConvFormer: Local Filtering in MetaFormer is Sufficient for Decision Making. - Jeonghye Kim; Suyoung Lee; Woojun Kim; Youngchul Sung (ICLR, 2024)

Hard Tasks First: Multi-Task Reinforcement Learning Through Task Scheduling. - Myungsik Cho; Jongeui Park; Suyoung Lee; Youngchul Sung (ICML, 2024)

The Max-Min Formulation of Multi-Objective Reinforcement Learning: From Theory to a Model-Free Algorithm. - Giseung Park; Woohyeon Byeon; Seongmin Kim; Elad Havakuk; Amir Leshem; Youngchul Sung (ICML, 2024)

Adaptive Q-Aid for Conditional Supervised Learning in Offline Reinforcement Learning. - Jeonghye Kim; Suyoung Lee; Woojun Kim; Youngchul Sung (NeurIPS, 2024)

Robust Reinforcement Learning Under Dimension-Wise State Information Drop. - Gyeongmin Kim; Jeonghye Kim; Suyoung Lee; Jaewoo Baek; Howon Moon; Sangheon Shin; Youngchul Sung (IEEE Access, 2024)

Real-Time Dynamic Pricing for Edge Computing Services: A Market Perspective. - Sangdon Park; Sohee Bae; Joohyung Lee 001; Youngchul Sung (IEEE Access, 2024)

Value-Aided Conditional Supervised Learning for Offline RL. - Jeonghye Kim; Suyoung Lee; Woojun Kim; Youngchul Sung (CoRR, 2024)

Reward Dimension Reduction for Scalable Multi-Objective Reinforcement Learning. - Giseung Park; Youngchul Sung (ICLR, 2025)

Adaptive multi-model fusion learning for sparse-reward reinforcement learning. - Giseung Park; Whiyoung Jung; Seungyul Han; Sungho Choi; Youngchul Sung (Neurocomputing, 2025)

ReflAct: World-Grounded Decision Making in LLM Agents via Goal-State Reflection. - Jeonghye Kim; Sojeong Rhee; Minbeom Kim; Dohyung Kim; Sangmook Lee; Youngchul Sung; Kyomin Jung (CoRR, 2025)

Online Pre-Training for Offline-to-Online Reinforcement Learning. - Yongjae Shin; Jeonghye Kim; Whiyoung Jung; Sunghoon Hong; Deunsol Yoon; Youngsoo Jang; Geonhyeong Kim; Jongseong Chae; Youngchul Sung; Kanghoon Lee; Woohyung Lim (CoRR, 2025)

Penalizing Infeasible Actions and Reward Scaling in Reinforcement Learning with Offline Data. - Jeonghye Kim; Yongjae Shin; Whiyoung Jung; Sunghoon Hong; Deunsol Yoon; Youngchul Sung; Kanghoon Lee; Woohyung Lim (CoRR, 2025)