• Ph.D., Information and Communications Engineering (2015.9.1-2020.6.25), Southwest Jiaotong University, China

• Visiting Ph.D., School of Computing and Communications (2017.10.9 -2018.10.7), Lancaster University, UK

• Master, School of Mathematics (2012.9.1-2015.6.30), Southwest Jiaotong University, China

• Bachelor, School of Mathematics and Computer Information Science (2008.9.1-2012.6.30), Shaoguang University, China

• Machine learning

• Intelligent Internet of Things

• Compressed sensing

• Security coding

• Distributed computing

• Non-orthogonal multiple access

• Statistical signal processing

Regular reviewer for: IEEE Trans. on Wireless Communications, IEEE Trans. on Communications, IEEE Trans. on Vehicular Technology, IEEE Comm. Letter, IEEE Wireless Communications, IEEE Access.

1. 2021.1-2023.12, National Natural Science Foundation of China (NSFC) Youth Fund Project, Signal Transmission and Detection for Large-scale Internet of Things with Non-orthogonal Multiple Access, NSFC Grant No. 62001190. (Principal Investigator)

【J9】Y. Xu, C. Shen, D. Cai and G. Zhu, "Latency Constrained Non-Orthogonal Packets Scheduling With Finite Blocklength Codes," IEEE Transactions on Vehicular Technology, vol. 69, no. 10, pp. 12312-12316, Oct. 2020.

【J8】Q. Zou, H. Zhang, D. Cai（corresponding author） and H. Yang, "A Low-Complexity Joint User Activity, Channel and Data Estimation for Grant-Free Massive MIMO Systems," IEEE Signal Processing Letters, vol. 27, pp. 1290-1294, 2020.

【J7】Y. Xu, D. Cai, F. Fang, Z. Ding, C. Shen and G. Zhu, "Outage Constrained Power Efficient Design for Downlink NOMA Systems With Partial HARQ," IEEE Transactions on Communications, vol. 68, no. 8, pp. 5188-5201, Aug. 2020.

【J6】Q. Zou, H. Zhang, D. Cai and H. Yang, "Message Passing Based Joint Channel and User Activity Estimation for Uplink Grant-Free Massive MIMO Systems With Low-Precision ADCs," IEEE Signal Processing Letters, vol. 27, pp. 506-510, 2020.

【J5】 D. Cai, Y. Xu, F. Fang, Z. Ding and P. Fan, "On the Impact of Time-Correlated Fading for Downlink NOMA," IEEE Transactions on Communications, vol. 67, no. 6, pp. 4491-4504, June 2019.

【C4】 Y. Xu, D. Cai, Z. Ding, C. Shen and G. Zhu, "Average Power Minimization for Downlink NOMA Transmission with Partial HARQ," 2018 IEEE Globecom Workshops (GC Wkshps), Abu Dhabi, United Arab Emirates, 2018, pp. 1-5.

【C3】 Y. Xu, D. Cai, F. Fang, Z. Ding, C. Shen and G. Zhu, "Outage Analysis and Power Allocation for HARQ-CC Enabled NOMA Downlink Transmission," 2018 IEEE Global Communications Conference (GLOBECOM), Abu Dhabi, United Arab Emirates, 2018, pp. 1-6.

【C2】 D. Cai, Y. Xu, F. Fang, S. Yan and P. Fan, "Outage Probability of NOMA with Partial HARQ Over Time-Correlated Fading Channels," 2018 IEEE Globecom Workshops (GC Wkshps), Abu Dhabi, United Arab Emirates, 2018, pp. 1-6.

【J4】 D. Cai, Z. Ding, P. Fan and Z. Yang, "On the Performance of NOMA With Hybrid ARQ," IEEE Transactions on Vehicular Technology, vol. 67, no. 10, pp. 10033-10038, Oct. 2018.

【J3】 L. Yu, P. Fan, D. Cai and Z. Ma, "Design and Analysis of SCMA Codebook Based on Star-QAM Signaling Constellations," IEEE Transactions on Vehicular Technology, vol. 67, no. 11, pp. 10543-10553, Nov. 2018.

【J2】 D. Cai, J. Wu, J. Yang and P. Fan, "Optimum Spectral and Energy Efficiency Tradeoff in Two-User Gaussian Interference Channel," IEEE Wireless Communications Letters, vol. 7, no. 3, pp. 468-471, June 2018.

【J1】 D. Cai, P. Fan and P. T. Mathiopoulos, "A Tight Lower Bound for the Symbol Error Performance of the Uplink Sparse Code Multiple Access," IEEE Wireless Communications Letters, vol. 6, no. 2, pp. 190-193, April 2017.

【C1】 D. Cai, P. Fan, X. Lei, Y. Liu and D. Chen, "Multi-Dimensional SCMA Codebook Design Based on Constellation Rotation and Interleaving," 2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), Nanjing, 2016, pp. 1-5.