Publications

Book Chapters

1. L. Wu and D. P. Palomar, “Cognition-enabled waveform design for ambiguity function shaping,” in Next Generation Cognitive Radar Systems, Ch. 6, K. V. Mishra, B. Shankar M.R., and M. Rangaswamy, The Institution of Engineering and Technology, 2023.

2. L. Wu and D. P. Palomar, “Radar Waveform Design via Majorization Minimization,” in Radar Waveform Design based on Optimization Theory, Ch. 7, G. Cui, A. DeMaio, A. Farina, and J. Li, The Institution of Engineering and Technology, 2020.

Journal Papers

(* indicates corresponding author, and students worked with me are underlined)

1. X. Feng, Z. Zhao, H. Huang, L. Wu, Z. Zhao, “Sidelobe Suppression with Low Peak-to-Valley Power Ratio Waveforms in MIMO-OFDM Dual-Function Radar-Communication Systems,” IEEE Transactions on Vehicular Technology, doi: 10.1109/TVT.2024.3508077.

2. H. Huang, M. F. Keskin, H. Wymeersch, X. Cai, L. Wu*, J. Thunberg, and F. Tufvesson, “Hybrid Precoder Design for Angle-of-Departure Estimation with Limited-Resolution Phase Shifters,” IEEE Transactions on Communications, doi: 10.1109/TCOMM.2024.3487517.

3. Z. Xie, L. Wu*, X. Huang, C. Fan, J. Zhu, and W. Liu, “Cross Ambiguity Function Shaping of Cognitive MIMO Radar: A Synergistic Approach to Antenna Placement and Waveform Design,” IEEE Transactions on Geoscience and Remote Sensing, vol. 62, pp. 1-13, 2024.

4. T. Wei, L. Wu*, K. V. Mishra, and B. Shankar, “RIS-Aided Wideband Holographic DFRC,” IEEE Transactions on Aerospace and Electronic Systems, doi: 10.1109/TAES.2024.3374272.

5. Z. Xie, L. Wu*, J. Zhu, M. Lops, X. Huang, and B. Shankar, “RIS-Aided Radar for Target Detection: Clutter Region Analysis and Joint Active-Passive Design,” IEEE Transactions on Signal Processing, vol. 72, pp. 1706-1723, 2024.

6. X. Feng, L. Wu, Y. Zhao, Z. Zhao, K. Diao, and M. Soltanalian, “Recurrent Waveform Optimization for Desired Range-Doppler Profile With Low Probability of Interception: A Particle Filter Approach,” IEEE Transactions on Aerospace and Electronic Systems, vol. 60, no. 2, pp. 1899-1911, April 2024.

7. T. Wei, L. Wu*, K. V. Mishra, and B. Shankar, “Multi-IRS-Aided Doppler-Tolerant Wideband DFRC System,” IEEE Transactions on Communications, vol. 71, no. 11, pp. 6561-6577, Nov. 2023.

8. L. Wu, N. Sahu, S. Xu, P. Babu, and D. Ciuonzo, “Optimization Based Sensor Placement for Multi-Target Localization with Coupling Sensor Clusters,” IEEE Transactions on Signal Processing and Information Processing over Networks, vol. 9, pp. 596-611, 2023.

9. M. Alaee-Kerahroodi, L. Wu, E. Raei, and B. Shankar, “Improving Precipitation Estimation via Joint Transmit-Receive Design for Solid State Weather Radar Systems,” IEEE Transactions on Radar Systems, vol. 1, pp. 212-229, 2023.

10. L. Wu, X. Cheng, H. Huang, D. Ciuonzo, and B. Shankar, “Constant-Modulus Waveform Design with Polarization-Adaptive Power Allocation in Polarimetric Radar,” IEEE Transactions on Signal Processing, vol. 71, pp. 2146-2161, 2023.

11. H. Huang, L. Wu*, B. Shankar, and A. M. Zoubir, “Sparse Array Design for Dual-Function Radar-Communications System,” IEEE Communications Letters, vol. 27, no. 5, pp. 1412-1416, May 2023.

12. Z. Cheng, L. Wu*, J. An, and Z. He, “Relative Entropy Based Constant-Envelope Beamforming for Target Detection in Large-Scale MIMO Radar With Low Resolution ADCs,” IEEE Transactions on Vehicular Technology, vol. 72, no. 8, pp. 10090-10106, Aug. 2023.

13. X. Cheng, L. Wu, D. Ciuonzo, and W. Wang, “Joint Design of Horizontal and Vertical Polarization Waveforms for Polarimetric Radar Via SINR Maximization,” IEEE Transactions on Aerospace and Electronic Systems, vol. 59, no. 3, pp. 3313-3328, June 2023.

14. Z. Cheng, L. Wu*, B. Wang, B. Shankar, and B. Ottersten, “Double-Phase-Shifter based Hybrid Beamforming for mmWave DFRC in the Presence of Extended Target and Clutters,” IEEE Transactions on Wireless Communications, vol. 22, no. 6, pp. 3671-3686, June 2023.

15. L. Chen, V. N. Ha, E. Lagunas, L. Wu, S. Chatzinotas, and B. Ottersten, “The Next Generation of Beam Hopping Satellite Systems: Dynamic Beam Illumination with Selective Precoding,” IEEE Transactions on Wireless Communications, vol. 22, no. 4, pp. 2666-2682, April 2023.

16. B. Wang, L. Wu, Z. Cheng, and Z. He, “Exploiting Constructive Interference in Non-linear Symbol Level Hybrid Beamforming for Dual-Function Radar-Communication System,” IEEE Wireless Communications Letters, vol. 11, no. 10, pp. 2071-2075, Oct. 2022.

17. M. Deng, Z. Cheng, L. Wu, B. Shankar, and Z. He, “One-Bit ADCs/DACs based MIMO Radar: Performance Analysis and Joint Design,” IEEE Transactions on Signal Processing, vol. 70, pp. 2609-2624, 2022.

18. S. Xu, L. Wu*, K. Doğançay, and M. Alaee-Kerahroodi, “A Hybrid Approach to Optimal TOA-Sensor Placement with Shared Sensors for Simultaneous Multi-Target Localization,” IEEE Transactions on Signal Processing, vol. 70, pp. 1197-1212, 2022.

19. T. Wei, L. Wu*, and B. Shankar, “Joint Waveform and Precoding Design for Joint Radar-Communication SINR Optimization,” IET Signal Processing, accepted.

20. L. Wu*, K. V. Mishra, B. Shankar, and B. Ottersten, “Resource Allocation in Heterogeneously-Distributed Joint Radar-Communications under Asynchronous Bayesian Tracking Framework,” IEEE Journal of Selected Areas in Communications, vol. 40, no. 7, pp. 2026-2042, July 2022.

21. N. Sahu, L. Wu*, P. Babu, B. Shankar, and B. Ottersten, “Optimal sensor placement for source localization: A unified ADMM approach,” IEEE Transactions on Vehicular Technology, vol. 71, no. 4, pp. 4359-4372, April 2022.

22. R. Zhou, L. Wu*, and R. S. Cheng, “Energy-Efficiency-Oriented Charge Scheduling and Beamforming for a Two-Tier Wireless Powered Network,” IEEE Internet of Things Journal, vol. 7, no. 3, pp. 2212-2222, Dec. 2019.

23. L. Wu*, Y. Feng, and D. P. Palomar, “General Sparse Risk Parity Portfolio Design via Successive Convex Optimization,” Signal Processing, vol. 170, pp. 1-13, Dec. 2019.

24. L. Wu* and D. P. Palomar, “Sequence Design for Spectral Shaping via Minimization of Regularized Spectral Level Ratio,” IEEE Transactions on Signal Processing, vol. 67, no. 18, pp. 4683-4695, Sep. 2019.

25. L. Wu*, P. Babu, and D. P. Palomar, “Transmit Waveform/Receive Filter Design for MIMO Radar with Multiple Waveform Constraints,” IEEE Transactions on Signal Processing, vol. 66, no. 6, pp. 1526-1540, Mar. 2018.

26. L. Wu*, P. Babu, and D. P. Palomar, “Cognitive Radar-Based Sequence Design via SINR Maximization,” IEEE Transactions on Signal Processing, vol. 65, no. 3, pp. 779-793, Feb. 2017.

Conference Papers

1. D. Saha, A. E. Olk, L. Wu and B. Shankar, “Broadband Design of Reflective Multi-Resonator Metasurface for V-Band Applications,” 18th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), Chania, Greece, 2024

2. L. Wu, W. Liu, B. Shankar and B. Ottersten, “Enhanced Jamming Suppression in Colocated MIMO Radar with Fluid Antenna Array,” in Proc. IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM), Corvallis, USA, Jul. 2024.

3. K. P. Rajput, L. Wu, B. Shankar and P. K. Varshney, “Joint Transmit Precoders and Passive Reflection Beamformer Design in IRS-Aided IoT Networks,” in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Seoul, Korea, Republic of, 2024.

4. Y. Liu, M. R. Bhavani Shankar, L. Wu and B. Ottersten, “Debris Sensing Based on LEO Constellation: An Intersatellite Channel Parameter Estimation Approach,” in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Seoul, Korea, Republic of, 2024.

5. Y. Yao, F. Shu, L. Wu, X. Cheng, X. Li and J. Wang, “Anti-Jamming Strategy for IRS-Aided JRC System in Vehicular Networks,” in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Seoul, Korea, Republic of, 2024.

6. M. Ahmadi, M. Alaee-Kerahroodi, L. Wu, B. Shankar and B. Ottersten, “Detector Design for Distributed Multichannel Radar Sensors in Colored Interference Environments,” in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Seoul, Korea, Republic of, 2024.

7. Y. Liu, W. Long, R. Chen, L. Wu, and B. Shankar, “Vortex Wavefront FMCW ISAC Model: A Blender-Based Evaluation,” in Proc. IEEE 24th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Shanghai, China, 2023.

8. L. Wu, K. P. Rajput, Y. Liu, and B. Shankar, “Distributed Sensing and Centric Computing via FMCW Waveform in Wireless Sensor Network,” in Proc. IEEE 24th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Shanghai, China, 2023.

9. K. P. Rajput, L. Wu, and B. Shankar, “Next-Generation IoT Networks: Integrated Sensing Communication and Computation,” in Proc. IEEE 48th International Conference on Acoustics, Speech and Signal Processing (ICASSP), Rhodes, Greece, Jun. 2023.

10. L. Wu, B. Wang, Z. Cheng, B. Shankar M. R., and B. Ottersten, “Joint Symbol-Level Precoding and Sub-Block-Level RIS Design for Dual-Function Radar-Communications,” in Proc. IEEE 48th International Conference on Acoustics, Speech and Signal Processing (ICASSP), Rhodes, Greece, Jun. 2023.

11. T. Wei, L. Wu, K. V. Mishra, and B. Shankar M. R., “RIS-Aided Wideband DFRC with Reconfigurable Holographic Surface,” in Proc. IEEE 48th International Conference on Acoustics, Speech and Signal Processing (ICASSP), Rhodes, Greece, Jun. 2023.

12. S. Zhao, Y. Liu, L. Wu, J. Rodriguez-Pineiro, X. Yin, and J. Hong, “Recursive UE Localization for a Multi-RIS-Assisted Wireless System in an Obstacle-Dense Environment,” in Proc. 17th European Conference on Antennas and Propagation (EuCAP), Florence, Italy, Mar. 2023.

13. B. Wang, Z. Cheng, L. Wu, and Z. He, “Hybrid Beamforming Design for OFDM Dual-Function Radar-Communication System with Double-Phase-Shifter Structure,” in Proc. 30th European Signal Processing Conference (EUSIPCO), Belgrade, Serbia, Aug. 2022.

14. T. Wei, L. Wu, K. V. Mishra, and B. Shankar M. R., “Simultaneous Active-Passive Beamformer Design in IRS-Enabled Multi-Carrier DFRC System,” in Proc. 30th European Signal Processing Conference (EUSIPCO), Belgrade, Serbia, Aug. 2022.

15. S. Shi, Z. Cheng, L. Wu, Z. He, and B. Shankar M. R., “Distributed 5G NR-Based Integrated Sensing and Communications Systems: Frame Structure and Performance Analysis,” in Proc. 30th European Signal Processing Conference (EUSIPCO), Belgrade, Serbia, Aug. 2022.

16. L. Wu, M. Alaee-Kerahroodi, and B. Shankar, “Improving Pulse-Compression Weather Radar via the Joint Design of Subpulses and Extended Mismatch Filter,” in Proc. The International Geoscience and Remote Sensing Symposium (IGARSS), Kuala Lumpur, Malaysia, Jul. 2022.

17. S. Xu, L. Wu, B. Shankar, and P. Babu, “Integrated Trajectory Optimization and Cubature Kalman Filter for UAV-Based Target Tracking with Unknown Initial Position,” in Proc. IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM), Trondheim, Norway, Jun. 2022.

18. T. Wei, L. Wu, K. V. Mishra, and B. Shankar M. R., “IRS-Aided Wideband Dual-Function Radar-Communications with Quantized Phase-Shifts,” in Proc. IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM), Trondheim, Norway, Jun. 2022.

19. Y. Liu, L. Wu, M. Alaee-Kerahroodi, and B. Shankar M. R., “A 3D Indoor Localization Approach Based on Spherical Wave-front and Channel Spatial Geometry,” in Proc. IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM), Trondheim, Norway, Jun. 2022.

20. B. Wang, Z. Cheng, L. Wu, and Z. He, “Hybrid Beamforming Design for Single-User OFDM Dual-Function Radar-Communication System with Space-Frequency Nulls,” in Proc. IEEE Wireless Communications and Networking Conference (WCNC), Austin, TX, USA, Apr. 2022.

21. L. Wu, J. Dai, B. Shankar, R. Hu, and B. Ottersten, “Recurrent Design of Probing Waveform for Sparse Bayesian Learning Based DOA Estimation,” in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Singapore, May 2022.

22. T. Wei, L. Wu, K. V. Mishra, and B. Shankar M. R., “Multi-IRS-Aided Wideband Integrated Sensing and Communications,” in Proc. IEEE JC&S Symposium, Innsbruck, Austria, Mar. 2022.

23. X. Cheng, L. Wu, T. Wei, D. Ciuonzo, and W. Wang, “Transmit Signal Design for Polarimetric Radars under Local Waveform Constraints,” in Proc. CIE International Conference on Radar, Haikou, China, Dec. 2021.

24. T. Wei, L. Wu, and B. Shankar M. R., “Sparse Array Beampattern Synthesis via Majorization Based ADMM,” in Proc. IEEE Vehicular Technology Conference (VTC2021-Fall), Online, Sep. 2021.

25. T. Wei, L. Wu, M. Alaee-Kerahroodi, and B. Shankar M. R., “Transmit Beampattern Synthesis for Planar Array with One-bit DACs,” in Proc. International Radar Symposium (IRS), Online, Jun. 2021.

26. L. Wu, K. V. Mishra, B. Shankar M. R., and B. Ottersten, “Heterogeneously Distributed Joint Radar Communications: Bayesian Resource Allocation,” in Proc. IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Lucca, Italy, Sep. 2021.

27. L. Wu, P. Babu, and D. P. Palomar, “A Fast Algorithm for Joint Design of Transmit Waveforms and Receive Filters,” in Proc. IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Sapporo, Japan, Jul. 2017.