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2021年12月，毕业于厦门大学通信与信息系统专业 (硕博连读)，获工学博士学位，导师为王琳教授和徐位凯副教授。2022年3月至2023年3月，在新加坡科技设计大学从事博士后研究工作，合作导师为Chau Yuen教授 (IEEE Fellow)。2023年4月至2024年4月，在香港理工大学从事博士后研究工作，合作导师为Liang Liu教授 (IEEE Fellow)。2024年5月至今，在福州大学物理与信息工程学院从事教学科研工作，担任副教授，硕士生导师。

入选福建省高层次人才、福州大学 "旗山学者" (海外项目) 奖励支持计划、香港理工大学博士后基金 (Hong Kong PolyU Postdoc Matching Fund) 支持计划，IEEE Senior Member，中国通信学会高级会员。

隐蔽水声通信、混沌水声通信、非相干混沌通信、混沌保密和隐蔽通信的基础理论与应用研究。

[F3] 国家自然科学基金委员会，青年项目，62401149，低截获概率的非相干混沌隐蔽水声通信关键技术研究，2025.01-2027.12，主持；
[F2] 福州大学 "旗山学者" (海外项目) 奖励支持计划科研项目，XRC-24117，混沌隐蔽水声通信关键技术研究，2024.09-2029.09，主持；
[F1] 国家自然科学基金委员会，面上项目，61871337，基于多载波差分混沌调制的稳健水声通信关键技术研究，2019.01-2022.12，参与；

论文清单详见：https://orcid.org/0000-0001-8879-9352—期刊论文—
[J12] X. Cai, C. Huang, P. Chen, E. Basar and C. Yuen, "Design of Non-Coherent RIS-Empowered DCSK with Two-Level Nested Index Modulation," IEEE Transactions on Wireless Communications, vol. 24, no. 4, pp. 3044-3058, Apr. 2025. [JCR Q1]
[J11] X. Cai, Z. Xie, P. Chen, Y. Fang, E. Basar, and C. Yuen, "Quadruple Code Index Modulation," IEEE Transactions on Cognitive Communications and Networking, vol. 11, no. 4, pp. 2327-2339, Aug. 2025. [JCR Q1]
[J10] X. Cai, C. Huang, E. Basar, W. Xu, L. Wang, M. Di Renzo, and C. Yuen, "Towards RIS-aided Non-Coherent Communications: A Joint Index Keying M-ary Differential Chaos Shift Keying System," IEEE Transactions on Wireless Communications, vol. 22, no. 12, pp. 9045-9062, Dec. 2023. [JCR Q1]
[J9] X. Cai, C. Yuen, C. Huang, W. Xu, and L. Wang, "Towards Chaotic Secure Communications: An RIS Enabled M-ary Differential Chaos Shift Keying System with Block Interleaving," IEEE Transactions on Communications, vol. 71, no. 6, pp. 3541-3558, Jun. 2023. [JCR Q1]
[J8] X. Cai, D. Wang, W. Xu, L. Wang and F. C. M. Lau, "Design of Carrier Index Keying-Aided M-ary Differential Chaos Cyclic Shift Keying for D2D Communications," IEEE Transactions on Communications, vol. 71, no. 6, pp. 3233-3250, Jun. 2023. [JCR Q1]
[J7] X. Cai, W. Xu, L. Wang, and G. Kaddoum, "Joint Energy and Correlation Detection Assisted Non-Coherent OFDM-DCSK System for Underwater Acoustic Communications," IEEE Transactions on Communications, vol. 70, no. 6, pp. 3742-3759, Jun. 2022. [JCR Q1]
[J6] X. Cai, W. Xu, L. Wang, and G. Kolumbán, "Design and Performance Analysis of a Robust Multi-Carrier M-Ary DCSK System: A Noise Suppression Perspective," IEEE Transactions on Communications, vol. 70, no. 3, pp. 1623-1637, Mar. 2022. [JCR Q1]
[J5] X. Cai, W. Xu, L. Wang, and G. Chen, "Towards High-Data-Rate Noncoherent Chaotic Communication: A Multiple-Mode Differential Chaos Shift Keying System," IEEE Transactions on Wireless Communications, vol. 20, no. 8, pp. 4888-4901, Aug. 2021. [JCR Q1]
[J4] X. Cai, W. Xu, L. Wang, and G. Kolumbán, "Multicarrier M-ary Orthogonal Chaotic Vector Shift Keying With Index Modulation for High Data Rate Transmission," IEEE Transactions on Communications, vol. 68, no. 2, pp. 974-986, Feb. 2020. [JCR Q1]
[J3] X. Cai, W. Xu, M. Miao, and L. Wang, "Design and Performance Analysis of a New M-ary Differential Chaos Shift Keying With Index Modulation," IEEE Transactions on Wireless Communications, vol. 19, no. 2, pp. 846-858, Feb. 2020. [JCR Q1]
[J2] X. Cai, W. Xu, S. Hong, and L. Wang, "Dual-Mode Differential Chaos Shift Keying With Index Modulation," IEEE Transactions on Communications, vol. 67, no. 9, pp. 6099-6111, Sept. 2019. [JCR Q1]
[J1] X. Cai, W. Xu, D. Wang, S. Hong, and L. Wang, "An M-ary Orthogonal Multilevel Differential Chaos Shift Keying System With Code Index Modulation," IEEE Transactions on Communications, vol. 67, no. 7, pp. 4835-4847, Jul. 2019. [JCR Q1]
—会议论文—
[C1] X. Cai, L. Hu, W. Xu, and L. Wang, "Design of an OFDM-Based Differential Cyclic-Shifted DCSK System for Underwater Acoustic Communications," in 2021 26th IEEE Asia-Pacific Conference on Communications (APCC), Kuala Lumpur, Malaysia, 2021, pp. 304-309. (获最佳论文奖)

[A7] 2025.06，入选福建省高层次人才
[A6] 2024.09，入选福州大学 "旗山学者" (海外项目) 奖励支持计划
[A5] 2023.04，入选香港理工大学博士后基金 (HK PolyU Postdoc Matching Fund) 支持计划
[A4] 2022.12，IEEE Transactions on Communications (中科院Top期刊) 杰出审稿人
[A3] 2021.10，IEEE Asia-Pacific Conference on Communications (APCC) 最佳论文奖
[A2] 2019.12，研究生国家奖学金，中华人民共和国教育部
[A1] 2014.11，本科生国家奖学金，中华人民共和国教育部

水声通信，无线通信，人工智能