• M. -J. Kang, D. Park, G. Kim, S. Kim, and K. -Y. Jung, "Design of Stepped Monopole Antennas with a Novel Decoupling Structure based on Characteristic Mode Analysis," Alex. Eng. J., vol. 111, pp. 482-490, Jan.  2025.
   

• ​J. Lee, H. Chung, Y. Cho, S. Kim, and S. Hong, "Near-Field Channel Estimation for XL-RIS Assisted Multi-User XL-MIMO Systems: Hybrid Beamforming Architectures," IEEE Trans. Commun., early access, Sep. 2024. 

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• H. Chung, S. Hong, and S. Kim, "Efficient Multi-user Channel Estimation for RIS-aided mmWave Systems using Shared Channel Subspace," IEEE Trans. Wireless Commun., vol. 23, no. 8, pp. 8512-8527, Aug. 2024.

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• I. Orikumhi, H. Lee, J. Bae, and S. Kim. "ISAC-enable Mobility-aware Multi-UAV Placement for Ultra-dense Networks." ICT Express, vol. 10, no. 4, pp 831-835, Apr. 2024.​

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• H. Kim et al., "RIS-enabled and Access-point-free Simultaneous Radio Localization and Mapping", IEEE Trans. Wireless Commun., vol. 23, no. 4, pp 3344-3360,  Apr. 2024.​​​

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• H. Chung and S. Kim, "Location-aware Beam Training and Multi-dimensional ANM-based Channel Estimation for RIS-aided mmWave Systems," IEEE Trans. Wireless Commun., vol. 23, no. 1, pp. 652-666, Jan. 2024.

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• E. N. Paulson, M. Jeong, H. Park, S. Choi, and S. Kim, “Fingerprinting-Based Indoor Localization With Hybrid Quantum-Deep Neural Network,” IEEE Access, vol. 11, pp. 142276-142291, Dec. 2023.​

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• E. N. Paulson, H. Park, C. Laoudias, S. Horsmanheimo, and S. Kim, "Dropout Autoencoder Fingerprint Augmentation for Enhanced Wi-Fi FTM-RSS Indoor Localization,"  IEEE Commun. Lett., vol. 27, no. 7, pp. 1759-1763,  Jul. 2023.

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• J. Moon, C. Laoudias, R. Guan, C. Panayiotou, D. Yazti, and S. Kim, "Cramér-Rao Lower Bound Analysis of Differential Signal Strength Fingerprinting for Crowdsourced IoT Localization," IEEE Internet Things J., vol. 10, no. 11, pp. 9690-9702, Jun. 2023.

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• I. Orikumhi, J. Bae, H. Park, and S. Kim, "DRL-based Multi-UAV Trajectory Optimization for Ultra-dense Small Cells," ICT Express, May 2023.

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• E. N. Paulson, H. Park, J. Lee, and S. Kim, "Machine Learning-based Joint Vital Signs and Occupancy Detection with IR-UWB Sensor," IEEE Sensors J., vol. 23, no. 7, pp. 7475-7482, Apr. 2023.

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• E. N. Paulson, H. Park, C. Laoudias, S. Horsmanheimo, and S. Kim, "Smartphone-based Indoor Localization via Network Learning with Fusion of FTM/RSSI Measurements," IEEE Netw. Lett., vol. 5, no. 1, pp. 21-25, Mar. 2023.

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• M. Jeong, S. Choi, and S. Kim, "A tutorial on Federated Learning methodology for indoor localization with non-IID fingerprint databases," ICT Express, Feb. 2023​

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• I. Orikumhi, C. Y. Leow, and S. Kim, "Location aided User Selection and Sum rate Analysis for mmWave NOMA," J. Commun. Netw., vol. 25, no. 1, pp. 35-49, Feb. 2023.

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• H. Park, J. Kang, S. Lee, J. W. Choi, and S. Kim, "Deep Q-network based beam tracking for mobile millimeter-wave communications," IEEE Trans. Wireless Commun., vol. 22, no. 2, pp. 961-971, Feb. 2023, 

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• H. Chung, H. Park, and S. Kim, "Leveraging Deep Learning for Practical DoA Estimation: Experiments with Real Data Collected via USRP," Sensors, Oct. 2022.

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• J. Park et al., "Federated Learning for Indoor Localization via Model Reliability With Dropout,"  IEEE Commun. Lett., vol. 26, no. 7, pp. 1553-1557, Jul. 2022,

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• Y. Ge et al., "A Computationally Efficient EK-PMBM Filter for Bistatic mmWave Radio SLAM," IEEE J. Sel, Areas  Commun., vol. 40, no. 7, pp. 2179-2192, Jul.  2022.

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• E.-K. Hong et al., "6G R&D Vision: Requirements and Candidate Technologies," J. Commun. Netw., vol. 24, no. 2, pp. 232-245, May, 2022.

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• H. Kim, K. Granstrom, L. Svensson, S. Kim, and H. Wymeersch, "PMBM-based SLAM Filters in 5G mmWave Vehicular Networks," IEEE Trans. Veh. Technol., vol. 71, no. 8, pp. 8646-8661, Apr. 2022.

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• H. Ahn et al., "Machine Learning-based Vision-aided Beam Selection for mmWave Multi-User MISO System," IEEE Wireless Commun. Lett., vol. 11, no. 6, pp. 1263-1267, Mar. 2022.

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• S. Kim, Y. Cho, and S. Kim, "Expected Effect of Adopting the eCall System on Reducing Traffic-Related Deaths and Social Costs," IEEE Intell. Trans. Syst. Mag., vol. 15, no. 1, pp. 193-211, Mar. 2022.

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• J. Moon, S. Papaioannou, C. Laoudias, P. Kolios and S. Kim, "Deep Reinforcement Learning Multi-UAV Trajectory Control for Target Tracking," IEEE Internet Things J., vol. 8, no. 20, Oct.  2021.

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• S. Lim, S. Kim, B. Shim, J. Choi, "Deep Learning-based Beam Tracking for Millimeter-wave Communications under Mobility," IEEE Trans. Commun., vol. 69, no. 11, pp. 7458-7469,  Aug. 2021.

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• J. Bang, H. Chung, J. Hong, H. Seo, J. Choi, and S. Kim, “Millimeter-Wave Communications: Recent Developments and Challenges of Hardware and Beam Management Algorithms,” IEEE Commun. Mag., vol. 59, no. 8, pp. 86-92,  Aug. 2021.

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• M. Sarker, I. Orikumhi, D. Han, and S. Kim, “Blockwise Phase Rotation-Aided Analog Transmit Beamforming for 5G mmWave Systems,” IEEE Wireless Commun. Lett., vol. 10, no. 11, pp. 2365-2368, Jul. 2021.​

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• J. Kang, N. Garcia, H. Wymeersch, C. Fischione, G. Seco-Granados, and S. Kim,  “Optimizing the mmWave Channel Estimation Duration by Rate Prediction,” IEEE Commun. Lett., vol. 25, no. 2, Feb. 2021.​​ 

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• ​S. Lee, I. Byun, S. Kim, and S. Kim, “A Theoretical Analysis of Mobility Detection in Connectivity-based Localization for Short-Range Networks,” Energies, vol. 14, no. 4, Feb. 2021.

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• H. Chung, J. Kang, H. Kim, Y. M. Park, and S. Kim, “Adaptive Beamwidth Control for mmWave Beam Tracking,” IEEE Commun. Lett., vol. 25, no. 1, pp. 137-141, Jan. 2021.

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• H. Chung, H. Seo, J. Joo, D. Lee, and S. Kim, “Off-grid DoA Estimation via Two-stage Cascaded Neural Network,” Energies, vol. 14, no. 1, Jan. 2021.

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• I. Orikumhi, J. Kang, H. Jwa, J. -H. Na and S. Kim, “SINR Maximization Beam Selection for mmWave Beamspace MIMO Systems,” IEEE Access, vol. 8, pp. 185688-185697, Oct. 2020.

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• H. Chung, J. Joo, and S. Kim, “Off-grid DoA Estimation on Non-uniform Linear Array Using Constrained Hermitian Matrix,” Energies, vol. 13, no. 21, Nov. 2020.

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• H. Kim, S. H. Lee, and S. Kim, “Cooperative Localization with Constraint Satisfaction Problem in 5G Vehicular Networks,” IEEE Trans. Intell. Transp. Syst., Nov. 2020.

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• S. H. Lim, S. Kim, B. Shim, and J. W. Choi, "Efficient Beam Training and Sparse Channel Estimation for Millimeter Wave Communications Under Mobility," IEEE Trans. Commun., vol. 68, no. 10, pp. 6583-6596, Oct. 2020.​

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• Y. Ge, F. Wen, H. Kim, M. Zhu, F. Jiang, S. Kim, L. Svensson, and H. Wymeersch, “5G SLAM Using the Clustering and Assignment Approach with Diffuse Multipath,” Sensors, vol. 20, no. 16, Aug. 2020. ​

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• H. Chung, Y. Park and S. Kim, “Super-resolution DoA Estimation on Co-prime Array via Positive Atomic Norm Minimization,” Energies, vol.13, no. 14, Jul. 2020. 

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• H. Chung, Y. Park, and S. Kim, “Wideband DOA Estimation on Co-prime Array via Atomic Norm Minimization,” Energies, vol. 13, no. 12, Jun. 2020.

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• H. Kim, K. Granström, L. Gao, G. Battistelli, S. Kim and H. Wymeersch, “5G mmWave Cooperative Positioning and Mapping using Multi-Model PHD Filter and Map Fusion,” IEEE Trans. Wireless Commun., vol. 19, no. 6, pp. 3782-3795, Jun. 2020.

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• J. Guo, S. Kim, H. Wymeersch, W. Saad and W. Chen, “Guest Editorial: Introduction to the Special Section on Machine Learning-Based Internet of Vehicles: Theory, Methodology, and Applications,” IEEE Trans. Veh. Technol., vol. 68, no. 5, pp. 4105-4109, May 2019.

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• J. Eom, H. Kim, S. H. Lee, and S. Kim, “DNN-Assisted Cooperative Localization in Vehicular Networks,” Energies, Special Issue “Wirel. Commun. Systems for Localization,” vol. 12, no. 14, pp. 2758, Jul. 2019.​

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• H. Seo, H. Kim, J. Kang, I. Jeong, W. Ahn, and S. Kim, “3D Moving Target Tracking with Measurement Fusion of TDoA/FDoA/AoA,” ICT Express, vol. 5, no. 2, pp. 115-119, Jun. 2019.​

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• J. A. del Peral-Rosado, G. Seco-Granados, S. Kim, and J. A. Lopez-Salcedo, “Network Design for Accurate Vehicle Localization,” IEEE Trans. Veh. Technol., vol. 68, no. 5, pp. 4316-4327, May 2019.​

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• S. Lee, J. Hur, M.-B. Beo, S. Kim, H. Choo, and G. Byun, “A Suboptimal Approach to Antenna Design Problems with Kernel Regression,” IEEE Access, vol. 7, pp. 17461-17468, Jan. 2019.​

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• H. Kim, S. W. Choi, and S. Kim, “Connectivity Information-Aided Belief Propagation for Cooperative Localization,” IEEE Wireless Commun. Lett., vol. 7, no. 6, pp. 1010-1013, Dec. 2018.​

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• B. Choi, D. Oh, S. Kim, J.-W. Chong, and Y.-C. Li, “Long-Range Drone Detection of 24G FMCW Radar with E-plane Sectoral Horn Array,” IEEE Sensors J., vol. 18, no. 12, pp. 4171-4191, Nov. 2018.​

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• S. Lee, C. Sin, and S. Kim, “A Sequential Approach to Direct Multi-Target Localization in MIMO Radar Networks,” IETE J. Research, pp. 1-6, Oct. 2018.​

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• C. Laoudias, A. Moreira, S. Kim, S. Lee, L. Wirola, and C. Fischione, “A Survey of Enabling Technologies for Network Localization, Tracking, and Navigation,” IEEE Commun. Surveys Tuts., vol. 20, no. 4, pp. 3607–3644, Jul. 2018.​

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• M. O. Mughal and S. Kim, “Signal Classification and Jamming Detection in Wide-Band Radios Using Naïve Bayes Classifier,” IEEE Commun. Lett., vol. 22, no. 7, pp. 1398-1401, Jul. 2018.​

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• A. Kartun-Giles, S. Jayaprakasam, and S. Kim, “Euclidean Matchings in Ultra-Dense Networks,” IEEE Commun. Lett., vol. 22, no. 6, pp. 1216-1219, Jun. 2018.​

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• A. P. Kartun-Giles, S. Kim, “Counting k-Hop Paths in the Random Connection Model,” IEEE Trans. Wireless Commun., vol. 17, no. 5, pp. 3201-3210, May 2018.​

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• Y.-C. Li, D. Oh, S. Kim, and J.-W. Chong, “Dual Channel S-Band Frequency Modulated Continuous Wave Through-Wall Radar Imaging,” IEEE Sensors J., vol. 18, no. 1, Jan. 2018.​

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• S. Jayaprakasam, X. Ma, J.W. Choi, and S. Kim. “Robust Beam-tracking for mmWave Mobile Communications,” IEEE Commun. Lett., vol. 21, no. 12, pp. 2654-2657, Dec. 2017.​

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• G. Byun, K.-Y. Hwang, H.-G. Park, S. Kim, and H. Choo, “A Modeling Process of Equivalent Terrains for Reduced Simulation Complexity in Radar Scene Matching Applications,” J. Electromagnetic Engineering, Sci., vol. 17, no. 2, pp. 51-56, Apr. 2017.​

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• S. Lee, S. W. Choi, C. Laoudias, and S. Kim, “Heterogeneous Device Tracking with RSS Variation Mitigation Over a Radio Map,” IEEE Commun. Lett., vol. 5, no. 5, pp. 552-555, Oct. 2016.​

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• S. Lee, E. S. Lohan, and S. Kim, “Array-Based GNSS Signal Tracking with a Reduced State Signal Model,” IEEE Trans. Aerosp. Electron. Syst., vol. 52, no. 3, pp. 1267-1283, Jun. 2016.

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• ​G. Byun, H. Choo, and S. Kim, “Design of a Small Arc-Shaped Antenna Array with High Isolation for Applications of Controlled Reception Pattern Antennas,” IEEE Trans. Antennas, Propag., vol. 64, no. 4, pp. 1542-1546, Apr. 2016.​

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• S. Lee, M. Jin, B. Koo, C. Sin, and S. Kim, “Pascal’s Triangle-Based Range-Free Localization for Anisotropic Wireless Networks,” Wirel. Netw., pp. 1-18, Oct. 2015.​

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• S. Lee, B. Cho, B. Koo, S. Ryu, J. Choi, and S. Kim, “Kalman Filter-Based Indoor Position Tracking with Self-Calibration for RSS Variation Mitigation,” Int. J. Distributed Sensor Netw., Aug. 2015.​

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• G. Byun, H. Choo, and S. Kim, “Improvement of Pattern Null Depth and Width Using a Curved Array with Two Subarrays for CRPA Systems,” IEEE Trans. Antennas, Propag., vol. 63, no. 6, pp. 2824-2827, Jun. 2015.​

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• G. Byun, H. Choo, and S. Kim, “Design of a Dual-Band Quadrifilar Helix Antenna Using Stepped-Width Arms,” IEEE Trans. Antennas Propag., vol. 63, no. 4, pp. 1858-1862, Apr. 2015.​

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• S. Lee, B. Koo, and S. Kim, “RAPS: Reliable Anchor Pair Selection for Range-Free Localization in Anisotropic Networks,” IEEE Commun. Lett., vol. 18, no. 8, pp. 1403-1406, Aug. 2014.​

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• S. Lee, C. Park, M.-J. Lee, and S. Kim, “Multihop Range-Free Localization with Approximate Shortest Path in Anisotropic Wireless Sensor Networks,” EURASIP J. Wirel. Commun. Netw., no. 80, pp. 154-159 May 2014.​

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• G. Byun, H. Choo, and S. Kim, “Array Configuration Optimization of Dual-Band Controlled Reception Pattern Antenna Arrays for Anisotropic Ground Platforms,” IET Microw., Antennas, Propag., vol. 8, no. 8, pp. 597-603, Jun. 2014.​

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• G. Byun, S. Kim, and H. Choo, “Design of a Dual-Band GPS Antenna Using a Coupled Feeding Structure for High Isolation in a Small Array,” Microw. Optical Technol. Lett., vol. 56, no. 2, pp. 359-361, Feb. 2014.​

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• J. Tak, K. Kwon, S. Kim, and J. Choi, “Dual-Band On-Body Repeater Antenna for In-On-On WBAN Applications,” Int. J. Antennas, Propag., vol. 2013, pp. 1-12, Oct. 2013.​

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• C. Ahn, B. Ahn, J. Choi, and S. Kim, “Experimental Outage Capacity Analysis for Off-body Wireless Body Area Network Channel with Transmit Diversity,” IEEE Trans. Consum. Electron., vol. 58, no. 2, pp. 274-277, May 2012.​

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• S. Kim, “Angle-Domain Frequency-Selective Sparse Channel Estimation for Underwater MIMO-OFDM Systems,” IEEE Commun. Lett., vol. 16, no. 5, pp. 685-687, May 2012.​

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• J. A. Cho, H. Na, S. Kim, and C. Ahn, “Moving-Target Tracking Based on Particle Filter with TDOA/FDOA Measurements,” ETRI J., vol. 34, no. 2, pp. 260-263, Apr. 2012.​

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• B.-C. Jo and S. Kim, “Multipath Interference Cancellation Technique for High Precision Tracking in GNSS Receiver,” IEICE Trans. Commun., vol. 93, no. 7, pp. 1961-1964, Jul. 2010.​

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• S. Kim, B.-C. Jo, and S. Lee, “DoA Estimation of Line of Sight Signal in Multipath Channel for GNSS Receiver,” IEICE Trans. Commun., vol. 92, no. 11, pp. 3397-3400, Nov. 2009.​

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• S. Kim and B.-T. Lee, “Scalable DV-Hop Localization Algorithm with Constrained Multilateration for Wireless Sensor Network,” IEICE Trans. Commun., vol. 92, no. 10, pp. 3075-3078, Oct. 2009.​

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• S. Kim, “Multiuser TOA Estimation Algorithm in DS-CDMA Sparse Channel for Radiolocation,” IEICE Trans.Commun., vol. 91, no. 2, pp. 618-621, Feb. 2008.​

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• S. Kim, “UWB Time Delay Estimation Under Non-Line of Sight Environment,” IEICE Trans. Commun., vol. 90, no. 10, pp. 2983-2986, Oct. 2007.​

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• S. Kim, “DS-CDMA Data and Channel Estimation with Antenna Array for Radiolocation,” IEICE Trans. Commun., vol. 90, no. 7, pp. 1707-1712, Jul. 2007.​

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• S. Kim, A. P. Brown, T. Pals, R. A. Iltis, and H. Lee, “Geolocation in Ad Hoc Networks Using DS-CDMA and Generalized Successive Interference Cancellation,” IEEE J. Sel. Areas Commun., vol. 23, no. 5, pp. 984-998, May 2005.​

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• S. Kim and R. A. Iltis, “A Matching Pursuit/GSIC-Based Algorithm for DS-CDMA Sparse Channel Estimation,” IEEE Signal Process. Lett., vol. 11, no. 1, pp. 12-15, Jan. 2004.​

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• R. A. Iltis and S. Kim, “Geometric Derivation of Expectation-Maximization and Generalized Successive Interference Cancellation Algorithms with Applications to CDMA Channel Estimation,” IEEE Trans. Signal Process., vol. 51, no. 5, pp. 1367-1377, May 2003.