Education

Ph.D in Electrical Engineering (2023.02)

POSTECH, Korea

Dissertation: Line-of-sight MIMO: Factoring in wavefront curvature (Advisor: Namyoon Lee)

M.S. in Electrical Engineering (2020.02)

POSTECH, Korea

B.S. in Mathematics (2018.02)

POSTECH, Korea

Work Experience

Postdoctoral researcher with WiSeCom, Universitat Pompeu Fabra, Spain (2025.08~)

Research Professor, Korea University, Korea (2024.04~2025.03)

Postdoctoral researcher with Research Institute of ICT, Korea University, Korea (2023.03~2024.03)

Visiting Appointments

1. WiSeCom UPF, 2021.11. (Host: Prof. Angel Lozano)

Awards

1. Andrea Goldsmith Young Scholar Award for contributions to near-field multiple-input multiple-output communications, 2025.

2. 27th Samsung Humantech Paper Award (Silver Award in Communication & Networks), 2020.

3. 12th ETNEWS ICT Paper Contest (Excellence Award), 2020.

4. 25th Samsung Humantech Paper Award (Silver Award in Communication & Networks), 2018.

Journal Papers

1. H. Do, N. Lee, and A. Lozano, "Multidimensional polynomial phase estimation," IEEE Open J. Signal Process., 2025.

2. H. Do and N. Lee, "Finding globally optimal configuration of active RIS in linear time," IEEE Trans. Wireless Commun., 2024.

3. H. Do, N. Lee, R. W. Heath Jr., and A. Lozano, "Hybrid arrays: How many RF chains are required to prevent beam squint?," IEEE Trans. Wireless Commun., vol. 23, no. 9, pp. 11708-11722, 2024. [ITA'24 Slides]

4. J. Kim, H. Lee, H. Do, J. Choi, J. Park, W. Shin, Y. C. Eldar, and N. Lee, "On the learning of digital self-interference cancellation in full-duplex radios," IEEE Wireless Commun., vol. 31, no. 4, pp. 184-191, 2024.

5. H. Do, N. Lee, and A. Lozano, “Line-of-sight MIMO via intelligent reflecting surface,” IEEE Trans. Wireless Commun., vol. 22, no. 6, pp. 4215-4231, 2023.

6. H. Do, N. Lee, and A. Lozano, “Parabolic wavefront model for line-of-sight MIMO channels,” IEEE Trans. Wireless Commun., vol. 22, no. 11, pp. 7620-7634, 2023.

7. H. Do, S. Cho, J. Park, H.-J. Song, N. Lee, and A. Lozano, “Terahertz line-of-sight MIMO communication: Theory and practical challenges,” IEEE Commun. Mag., vol. 59, no. 3, pp. 104–109, 2021. [IEEE ComSoc Best Readings on THz Communications]

8. H. Do, N. Lee, and A. Lozano, “Reconfigurable ULAs for line-of-sight MIMO transmission,” IEEE Trans. Wireless Commun., vol. 20, no. 5, pp. 2933–2947, 2021.

9. Y.-S. Jeon, H. Do, S.-N. Hong, and N. Lee, “Soft-output detection methods for sparse millimeter-wave MIMO systems with low-precision ADCs,” IEEE Trans. Commun., vol. 67, no. 4, pp. 2822–2836, 2019.

10. Y. Nam, H. Do, Y. Jeon, and N. Lee, “On the capacity of MISO channels with one-bit ADCs and DACs,” IEEE J. Sel. Areas Commun., vol. 37, no. 9, pp. 2132–2145, 2019.

Preprints

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Conference Proceedings

1. [Invited] H. Do, N. Lee, and A. Lozano, “Near-field channel interpolation for pilot overhead reduction in XL-MIMO”, in EUSIPCO'25.

2. B. Park, H. Do, and N. Lee, “Transformer-based nonlinear transform coding for multi-rate CSI compression in MIMO-OFDM systems”, in ICC'25.

3. [Invited] H. Do, N. Lee, and A. Lozano, “Estimation of near-field line-of-sight channels: A multidimensional polynomial phase approach”, in Asilomar'24.

4. [Invited] H. Do, H. Cho, and N. Lee, “BLUE fusion for multi-point localization”, in Asilomar'24.

5. H. Do and N. Lee, "Global optimization of active RIS in linear time," in ICASSP'24. [Poster]

6. B. Park, H. Do, and N. Lee, "Multi-rate variable-length CSI compression for FDD massive MIMO," in ICASSP'24.

7. H. Do, N. Lee, and A. Lozano, “Validity of the parabolic wavefront model for near-field MIMO,” in ICC'23 Workshop. [Slides] 

8. [Invited] H. Do, N. Lee, and A. Lozano, “DOF augmentation via IRS for line-of-sight communication,” in Asilomar'22. [Slides] 

9. H. Do, N. Lee, and A. Lozano, “Rotatable URAs for line-of-sight MIMO transmission,” in GLOBECOM'21.

10. H. Do, N. Lee, and A. Lozano, “Capacity of line-of-sight MIMO channels,” in ISIT'20.

11. Y. Nam, H. Do, Y. Jeon, and N. Lee, "Capacity analysis of MISO channels with one-bit transceiver," in ISIT'19.

12. H. Lee, Y.-S. Jeon, H. Do, and N. Lee, “Concatenated MMSE estimation for quantized OFDM systems,” in ICC'19.

Invited Talks

1. "Channel estimation for near-field MIMO: A middle way," IEEE Communication Theory Workshop, May 2025.
   - Andrea Goldsmith Young Scholar Awards talk

2. "Near-Field MIMO communication: A polynomial phase approach," Yonsei University, Feb. 2025. (Host: Prof. Jeonghun Park)

3. "Parabolic wavefront model for near-field MIMO channels," POSTECH EE Seminar, May 2023. (Host: Prof. Yo-Seb Jeon)

Communication Theory Workshop Posters

1. H. Do, N. Lee, and A. Lozano, "Channel estimation for near-field MIMO: A middle way," in CTW'25.

2. H. Do, N. Lee, and A. Lozano, "Estimation of near-field line-of-sight channels: A multidimensional polynomial phase approach," in CTW'24.

3. H. Do, N. Lee, R. W. Heath Jr., and A. Lozano, “Satellite communications with hybrid array architecture for beam squint compensation,” in CTW'23. [Poster] 

4. H. Do, N. Lee, and A. Lozano, “DOF augmentation via IRS for line-of-sight communication,” in CTW'22. [Poster]