研究方向：序列设计与编码、大规模多址接入、通感一体化信号设计。

    面向无线通信行业需求，致力于现代无线通信系统、雷达感知系统、数据传输网络中的信息鲁棒传输与编码理论和技术的研究。围绕下一代无线通信物理层关键技术，综合运用解析代数、组合设计、优化算法以及人工智能等手段，聚焦无线通信序列设计与编码、新型多址接入理论与技术、通信感知一体化波形设计、大规模MIMO系统波束成形、智能超表面预编码理论与方法等问题展开研究工作。本研究着力在信号设计与编码基础理论方面取得突破，在工程实践上为下一代无线通信网络、数据传输网络以及雷达通信一体化系统等提供大量具有优良相关性能的信号集合，达到降低或消除系统中的干扰、提高系统性能的目标，为系统设计提供理论依据，从而推动未来空天地一体化通信系统与网络的发展。

代表性成果：

1. Enbo Hu, Tao Liu, Yubo Li. Broad Beam Design for RIS-Assisted Massive MIMO Systems. IEEE Transactions on Wireless Communications. Jun. 2026, accepted.

2. Enbo Hu, Yubo Li, Tao Liu, Xiaoyu Chen. Design of Flag Sequence Sets for Multi-Target Detection in MIMO Radar Systems, IEEE Signal Processing Letters, 2026, 33:1371-1375.
   

3. Liying Tian, Xiaoshi Song, Zilong Liu, Yubo Li. Asymptotically Optimal Sequence Sets With Low/Zero Ambiguity Zone Properties. IEEE Transactions on Information Theory, 2025, 71(6): 4796.

4. Liying Tian, Xiaoshi Song, Yubo Li, Haijun Zhang. A Novel Construction of Two-Dimensional Z-Complementary Array Code Sets Based on Extended Boolean Functions. IEEE Transactions on Vehicular Technology, 2025, 74(5): 7821-7834.

5. Meiyue Wang, Tao Liu, Mingxin Liu, Yubo Li. Two Constructions of Aperiodic Quasi-Complementary Sequence Sets With New Parameters. IEEE Transactions on Communications, 2025, 73(1):93-102.

6. Tao Liu, Saiyin Hou, Xinyu Men, Yubo Li. Two-Dimensional Quasi-Complementary Array Sets for Omnidirectional Transmission in Massive MIMO Systems.IEEE Wireless Communications Letters, 2024, 13(8): 2115-2119.

7. Xinyu Men, Yubo Li. Omnidirectional Precoding Designs Based on 2-D Golay Complementary Array Pairs for Massive MIMO Systems With Fully-Connected and Partially-Connected Structures. IEEE Transactions on Communications, 2024, 72(5): 3019-3034.

8. Liying Tian, Yan Ma, Weimin Lei, Yubo Li.  A Direct Construction of ZCZ Sequences With Low Peak-to-Average Power Ratio. IEEE Communications Letters, 2024, 28(2):273-277.

9. Yubo Li, Liying Tian, Yihang Zeng. Constructions of Spectrally-Null-Constrained ZCZ Sequences for MIMO-OFDM Channel Estimation Over Non-Contiguous Carriers, IEEE Communications Letters, 2023, 27(2): 442-446.

10. Xinyu Men, Tao Liu, Yubo Li, Mingxin Liu. Constructions of 2-D Golay Complementary Array Sets With Flexible Sizes for Omnidirectional Precoding in Massive MIMO. IEEE Communications Letters, 2023, 27(5): 1302-1306.

11. Xinyu Men, Yubo Li. New Construction of Multiple Complete Complementary Code with Inter-Set Zero Correlation Zone. IEEE Signal Processing Letters, 2022, 29(9):1958-1962.

12. Liying Tian, Tao Liu, Yubo Li. New Constructions of Binary Golay Spreading Sequences for Uplink Grant-Free NOMA. IEEE Communication Letters, 2022, 26(10): 2480-2484.

13. Tao Liu, Xinyu Men, Yubo Li, Xiaoyu Chen. Constructions of 2-D Golay Complementary Array Sets for MIMO Omnidirectional Transmission, IEEE Communication Letters, 2022, 26(7): 1459-1463.

14. Liying Tian, Yubo Li，Zhengchun Zhou, Chengqian Xu. Two Classses of Z-Complementary Code Sets With Good Cross-Correlation Subsets via Paraunitary Matrices. IEEE Transactions on Communications，2021,  69(5): 2935-2947.

15. Liying Tian, Yubo Li, Chengqian Xu. Multiple Complete Complementary Codes with Inter-Set Zero Cross-Correlation Zone. IEEE Transactions on Communications, 2020, 68(3):1925-1936.

16. Yubo Li, Liying Tian, Chengqian Xu. Constructions of Asymptotically Optimal Aperiodic Quasi-Complementary Sequence Sets. IEEE Transactions on Communications, 2019, 67(11): 7499-7511.

17. Yubo Li, Liying Tian, Tao Liu, Chengqian Xu. Two Constructions of Asymptotically Optimal Quasi-Complementary Sequence Sets. IEEE Transactions on Communications, 2019, 67(3): 1910-1924.

18. Yubo Li, Liying Tian, Tao Liu, Chengqian Xu. Constructions of Quasi-Complementary Sequence Sets Associated With Characters. IEEE Transactions on Information Theory, 2019, 65(7): 4597-4608.

19. Liying Tian, Yubo Li, Chengqian Xu. Constructions of codebooks asymptotically achieving the Welch bound with additive characters. IEEE Signal Processing Letters, 2019, 26(4): 622-626.

20. Tao Liu , Chengqian Xu , Yubo Li . Multiple Complementary Sequence Sets with Low Inter-Set Cross-Correlation Property. IEEE Signal Processing Letters. 2019, 26(6): 913-917.

21. Yubo Li, Tao Liu, Chengqian Xu. Constructions of Asymptotically Optimal Quasi-Complementary Sequence Sets. IEEE Communications Letters. 2018. 22(8):1516-1519 .

22. Yubo Li, Chengqian Xu. A New Construction of Zero Correlation Zone Gaussian Integer Sequence Set. IEEE Communications Letters. 2016, 20(12):2418-2421.

23. Yubo Li, Chengqian Xu. ZCZ Aperiodic Complementary Sequence Sets with Low Column Sequence PMEPR. IEEE Communications Letters. 2015, 19(8):1303-1306.

24. Yubo Li, Chengqian Xu, et al. Constructions of Z-Periodic Complementary Sequence Set with Flexible Flock Size. IEEE Communications Letters. 2014. 18(2):201-204.

25. Yubo Li, Chengqian Xu.  Zero Correlation Zone Sequence Sets over the 8-QAM+ Constellation. IEEE Communications Letters. 2012, 16(11):1844-1847.