’ * ‘ corresponding author.

Journal papers

[29] L. Wan, S. Deng, Y. Chen*, and E. Cheng, “Sparse channel estimation for underwater acoustic OFDM systems with super-nested pilot design,” Signal Processing, vol. 227, 2025. https://doi.org/10.1016/j.sigpro.2024.109709

[28] L. Wan* and M. Zhao, “Receiver Enhancement for Differentially Encoded Underwater Acoustic OFDM Incorporating Amplitude and Phase Mismatches,” IEEE Journal of Oceanic Engineering, vol. 49, no. 2, pp. 553-565, Apr. 2024. https://doi.org/10.1109/JOE.2023.3323050

[27] G. Qiao, X. Qiang, L. Wan*, and H. Jia, “Energy Leakage in OFDM Sparse Channel Estimation: the Drawback of OMP and the Application of Image Deblurring,” Digital Communications and Networks, vol. 10, no. 5, pp. 1280-1288, Oct. 2024. https://10.1016/j.dcan.2023.08.003

[26] X. Zhu, Y. Chen*, L. Wan*, W. Huang, G. Lu, and X. Xu, “Dynamic layered routing protocols based on BP-NN for underwater acoustic sensor networks,” Applied Acoustics, vol. 211, Aug. 2023. https://doi.org/10.1016/j.apacoust.2023.109454

[25] L. Wan, J. Zhu*, E. Cheng and Z. Xu, “Joint CFO, Gridless Channel Estimation and Data Detection for Underwater Acoustic OFDM Systems,” IEEE Journal of Oceanic Engineering, vol. 47, no. 4, pp. 1215-1230, Oct. 2022. https://doi.org/10.1109/JOE.2022.3162025

[24] J. Guo, S. Song, J. Liu, L. Wan, Y. Zhao and G. Han, “An Efficient Medium Access Control Scheme Based on MC-CDMA for Mobile Underwater Acoustic Networks,” IEEE Network, vol. 36, no. 3, pp. 167-173, May/June 2022. https://doi.org/10.1109/MNET.123.2100332

[23] Y. Chen, J. Zhu, L. Wan, X. Fang, F. Tong, and X. Xu, “Routing failure prediction and repairing for AUV-assisted underwater acoustic sensor networks in uncertain ocean environments,” Applied Acoustics, vol. 186, Jan. 2022. https://doi.org/10.1016/j.apacoust.2021.108479

[22] G. Qiao, X. Qiang and L. Wan*, “Double Interpolation-Based Linear Fitting for OMP Channel Estimation in OFDM Systems,” IEEE Communications Letters, vol. 25, no. 9, pp. 2908-2912, Sept. 2021. https://doi.org/10.1109/LCOMM.2021.3093672

[21] Y. Chen, W. Yu, X. Sun, L. Wan, Y. Tao, and X. Xu, “Environment-aware communication channel quality prediction for underwater acoustic transmissions: A machine learning method,” Applied Acoustics, vol. 181, Oct. 2021. https://doi.org/10.1016/j.apacoust.2021.108128

[20] Y. Chen, K. Zheng, X. Fang, L. Wan, and X. Xu, “QMCR: A Q-Learning-Based Multi-Hop Cooperative Routing Protocol for Underwater Acoustic Sensor Networks,” China Communications, vol. 18, no. 8, pp. 224-236, 2021. https://doi.org/10.23919/JCC.2021.08.016

[19] Y. Chen, Y. Tang, X. Fang, L. Wan, Y. Tao and X. Xu, “PB-ACR: Node Payload Balanced Ant Colony Optimal Cooperative Routing for Multi-Hop Underwater Acoustic Sensor Networks,” IEEE Access, vol. 9, pp. 57165-57178, 2021. doi:10.1109/ACCESS.2021.3072283.

[18] Y. Chen, J. Zhu, L. Wan, S. Huang, X. Zhang and X. Xu, “ACOA-AFSA Fusion Dynamic Coded Cooperation Routing for Different Scale Multi-Hop Underwater Acoustic Sensor Networks,” IEEE Access, vol. 8, pp. 186773-186788, 2020. doi:10.1109/ACCESS.2020.3029533.

[17] M. Muzzammil, N. Ahmed, G. Qiao, I. Ullah and L. Wan, “Fundamentals and Advancements of Magnetic Field Communication for Underwater Wireless Sensor Networks,” IEEE Transactions on Antennas and Propagation, vol. 68, no. 11, pp. 7555-7570, Nov. 2020. doi:10.1109/TAP.2020.3001451.

[16] W. Yu, Y. Chen, L. Wan, X. Zhang, P. Zhu and X. Xu, “An Energy Optimization Clustering Scheme for Multi-Hop Underwater Acoustic Cooperative Sensor Networks,” IEEE Access, vol. 8, pp. 89171-89184, 2020. doi:10.1109/ACCESS.2020.2993544.

[15] L. Wan, H. Jia, F. Zhou, M. Muzzammil, T. Li, and Y. Huang, “Fine Doppler Scale Estimations for An Underwater Acoustic CP-OFDM System,” Signal Processing, vol. 170, 2020. https://doi.org/10.1016/j.sigpro.2019.107439

[14] G. Qiao, Y. Xiao, L. Wan*, X. Guo and H. Jia, “Analysis of SNR Metrics for a Typical Underwater Acoustic OFDM System,” IEEE Access, vol. 7, pp. 183565-183579, 2019. doi:10.1109/ACCESS.2019.2960304

[13] M. Muzzammil, T. Ahmad, N. M. Khan, and L. Wan*, “Low cost, faster detection of cognitive radio through filter banks with bandpass sampling,” Physical Communication, vol. 33, pp. 1-8, 2019. https://doi.org/10.1016/j.phycom.2018.12.009.

[12] Y. Chen, X. Jin, L. Wan, X. Zhang and X. Xu, “Selective Dynamic Coded Cooperative Communications for Multi-Hop Underwater Acoustic Sensor Networks,” IEEE Access, vol. 7, pp. 70552-70563, 2019. doi:10.1109/ACCESS.2019.2912917

[11] L. Wan, X. Qiang, L. Ma, Q. Song, and G. Qiao, “Accurate and Efficient Path Delay Estimation in OMP Based Sparse Channel Estimation for OFDM with Equispaced Pilots,” IEEE Wireless Communications Letters, vol. 8, no. 1, pp. 117-120, Feb. 2019. doi:10.1109/LWC.2018.2860996

[10] G. Qiao, Q. Song, L. Ma, and L. Wan, “A low-complexity orthogonal matching pursuit based channel estimation method for time-varying underwater acoustic OFDM systems,” Applied Acoustics, vol. 148, pp. 246-250, 2019. https://doi.org/10.1016/j.apacoust.2018.12.026

[9] Y. Zhang, Y. Huang, L. Wan, S. Zhou, X. Shen, and H. Wang, “Adaptive OFDMA with Partial CSI for Downlink Underwater Acoustic Communications,” Journal of Communications and Networks, vol. 18, no. 3, pp. 387-396, 2016. 10.1109/JCN.2016.000054

[8] X. Cai, L. Wan, Y. Huang, S. Zhou, and Z. Shi, “Further Results on Multicarrier MFSK Based Underwater Acoustic Communications,” Elsevier Journal on Physical Communication, vol. 18, Part 1, pp. 15-27, 2016. https://doi.org/10.1016/j.phycom.2015.12.001.

[7] L. Wan, H. Zhou, X. Xu, Y. Huang, S. Zhou, Z. Shi, and J-H. Cui, “Adaptive Modulation and Coding for Underwater Acoustic OFDM,” IEEE Journal of Oceanic Engineering, vol. 40, no. 2, pp. 327-336, 2015. 10.1109/JOE.2014.2323365.

[6] Y. Chen, Z.-H.Wang, L. Wan, H. Zhou, S. Zhou, and X.-M. Xu, “OFDM Modulated Dynamic Coded Cooperation in Underwater Acoustic Channels,” IEEE Journal of Oceanic Engineering, vol. 40, no. 1, pp. 159-168, 2015. 10.1109/JOE.2014.2304254.

[5] Y. Huang, L. Wan, S. Zhou, Z.-H. Wang, and J.-Z. Huang, “Comparison of Sparse Recovery Algorithms for Channel Estimation in Underwater Acoustic OFDM with Data-Driven Sparsity Learning,” Elsevier Journal on Physical Communication, vol. 13, Part C, pp.156-167, 2014. https://doi.org/10.1016/j.phycom.2014.08.001.

[4] L. Wan, H. Zhou, D. Wilson, J. Hanson, S. Zhou, and Z. Shi, “Analysis of Underwater OFDM Performance During a Two-Month Deployment in Chesapeake Bay,” Marine Technology Society Journal, vol. 48, no. 6, November/December 2014. https://doi.org/10.4031/MTSJ.48.6.10.

[3] H. Yan, L. Wan, S. Zhou, Z. Shi, J. Cui, J. Huang and H. Zhou, “DSP Based Receiver Implementation for OFDM Acoustic Modems,” Elsevier Journal on Physical Communication, vol. 5, no. 1, pp. 22-32, 2012. https://doi.org/10.1016/j.phycom.2011.09.001.

[2] X. Xu, Z.-H. Wang, S. Zhou, and L. Wan, “Parameterizing Both Path Amplitude and Delay Variations of Underwater Acoustic Channels for Block Decoding of Orthogonal Frequency Division Multiplexing,” Journal of the Acoustical Society of America, vol.131, no. 6, pp. 4672-4679, June 2012. https://doi.org/10.1121/1.4707460.

[1] L. Wan, Z.-H. Wang, S. Zhou, T.C. Yang, and Z. Shi, “Performance Comparison of Doppler Scale Estimation Methods for Underwater Acoustic OFDM,” Journal of Electrical and Computer Engineering, vol. 2012, Article ID 703243, 11 pages, 2012. http://dx.doi.org/10.1155/2012/703243.

Conference papers

[15] S. Xu, L. Wan*, Y. Chen and E. Cheng, “Deep Learning Based Impulsive Noise Mitigation for Underwater Acoustic OFDM Systems,” in Proc. of the 17th International Conference on Underwater Networks & Systems (WUWNet’23), Shenzhen, China, Nov. 2023, pp. 1-5. 10.1145/3631726.3631729.

[14] Z. Wang, L. Wan*, Y. Chen and E. Cheng, “Two-Step Interfrequency Interference Cancelation for Single-Carrier Underwater Acoustic Communications in Time-Varying Channels,” 2023 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC), Zhengzhou, China, 2023, pp. 1-5. 10.1109/ICSPCC59353.2023.10400364

[13] Y. Zhao, L. Wan*, Y. Chen, E. Cheng, F. Xu and L. Liang, “Power Allocation for Non-Coherent Multi-Carrier FSK Underwater Acoustic Communication Systems with Uneven Transmission Source Level,” 2022 14th International Conference on Signal Processing Systems (ICSPS), Jiangsu, China, 2022, pp. 616-622. 10.1109/ICSPS58776.2022.00114

[12] Z. Zhu, L. Wan*, E. Cheng and F. Xu, “Bidirectional Equalization Receiver for Underwater Acoustic OFDM Systems Using Frequency-Domain Oversampling,” 2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC), Xi’an, China, 2022, pp. 1-6. 10.1109/ICSPCC55723.2022.9984479

[11] Y. Zhao, L. Wan*, E. Cheng and F. Xu, “Adaptive Power Allocation for Non-coherent FSK in Time-varying Underwater Acoustic Communication Channels,” 2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC), Xi’an, China, 2022, pp. 1-6. 10.1109/ICSPCC55723.2022.9984454

[10] M. Muzzammil, H. Jia, L. Wan and G. Qiao, “Further Interpolation Methods for Doppler Scale Estimation in Underwater Acoustic CP-OFDM Systems,” IEEE 2nd International Conference on Information Communication and Signal Processing (ICICSP), Weihai, 2019, pp. 295-300. 10.1109/ICICSP48821.2019.8958577

[9] G. Qiao, Y. Xiao, L. Wan* and X. Qiang, “Analysis of Effective Signal to Noise Ratio Performance of a Typical Underwater Acoustic OFDM System,” OCEANS 2018 MTS/IEEE Charleston, Charleston, SC, 2018, pp. 1-6. 10.1109/OCEANS.2018.8604665

[8] G. Qiao, X. Qiang, L. Wan* and Y. Xiao, “Chirp Z-Transform Based Sparse Channel Estimation for Underwater Acoustic OFDM in Clustered Channels,” OCEANS 2018 MTS/IEEE Charleston, Charleston, SC, 2018, pp. 1-6. 10.1109/OCEANS.2018.8604692

[7] G. Qiao, Z. Babar, L. Ma, L. Wan, X. Qing, X. Li, and M. Bilal, “Shallow water acoustic channel modeling and MIMO-OFDM simulations,” 2018 15th International Bhurban Conference on Applied Sciences and Technology (IBCAST), Islamabad, 2018, pp. 709-715. 10.1109/IBCAST.2018.8312300

[6] Y. Zhang, Y. Huang, L. Wan, H. Zhou, S. Zhou, X. Shen, and H. Wang, “Adaptive OFDMA for downlink underwater acoustic communications,” 2014 Oceans - St. John’s, St. John’s, NL, 2014, pp. 1-5. 10.1109/OCEANS.2014.7003120.

[5] Z. Peng, L. Wei, Z. Wang, L. Wan, et al., “Ocean-TUNE UCONN testbed: A technology incubator for underwater communication and networking,” 2014 Underwater Communications and Networking (UComms), Sestri Levante, 2014, pp. 1-4. 10.1109/UComms.2014.7017140.

[4] L. Wan, H. Zhou, X. Xu, Y. Huang, S. Zhou, Z. Shi, and J-H. Cui, “Field Tests of Adaptive Modulation and Coding for Underwater Acoustic OFDM,” in Proc. of the Eighth ACM International Conference on Underwater Networks and Systems (WUWNet), Kaohsiung, Taiwan, Nov. 2013. 10.1145/2532378.2532414.

[3] Y. Chen, H. Sun, L. Wan, Z. Wang, S. Zhou and X. Xu, “Dynamic network coded cooperative OFDM for underwater data collection,” 2012 Oceans, Hampton Roads, VA, 2012, pp. 1-4. 10.1109/OCEANS.2012.6404899.

[2] L. Wan, S. Hurst, Z. Wang, S. Zhou, Z. Shi and S. Roy, “Joint linear precoding and nonbinary LDPC coding for underwater acoustic OFDM,” 2012 Oceans, Hampton Roads, VA, 2012, pp. 1-5. 10.1109/OCEANS.2012.6404972.

[1] H. Yan, S. Zhou, Z. Shi, J-H. Cui, L. Wan, J. Huang, and H. Zhou, “DSP implementation of SISO and MIMO OFDM acoustic modems,” OCEANS’10 IEEE SYDNEY, Sydney, NSW, 2010, pp. 1-6. 10.1109/OCEANSSYD.2010.5603887.