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Publications
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Overview Articles
[A3] S. Chen, J. Zhang, J. Zhang, E. Björnson, and B. Ai, “A survey on user-centric cell-free massive MIMO systems,” Dig. Commun. Netw., vol. 8, no. 5, pp. 695-719, Oct. 2022.
[A2] E. Shi, J. Zhang, S. Chen, J. Zheng, Y. Zhang, D. W. K. Ng, and B. Ai, “Wireless energy transfer in RIS-aided cell-free massive MIMO systems: Opportunities and challenges,” IEEE Commun. Mag., vol. 60, no. 3, pp. 26-32, Mar. 2022.
[A1] J. Zhang, S. Chen, Y. Lin, J. Zheng, B. Ai, and L. Hanzo, “Cell-free massive MIMO: A new next-generation paradigm,” IEEE Access, vol. 7, pp. 9878-99888, 2019. [ESI Highly Cited Paper]
International Journal Articles
[J14] Y. Bu, C.-X. Wang, C. Huang, S. Chen, J. Li, J. Ji, and Y. Chen, “Wireless channel map enabled instantaneous channel state information acquisition in high-mobility scenarios,” IEEE Trans. Commun., to appear, 2026.
[J13] Y. Qian, J. Jiang, M. Yuan, Y. Ye, S. Chen, and J. Zhang, “Spatio-temporal graph convolutional network based beam training and tracking for XL-MIMO systems,” IEEE Wireless Commun. Lett., early access, 2026, doi: 10.1109/LWC.2026.3653554.
[J12] X. Mao, C.-X. Wang, S. Yang, J. Lyu, J. Huang, S. Chen, and J. Zhang, “Impacts of wall materials and locations on channel characteristics and performance of indoor wireless communication systems,” IEEE Trans. Wireless Commun., vol. 25, pp. 8799-8811, Dec. 2026.
[J11] J. Ji, C.-X. Wang*, S. Chen*, C. Huang, X. Wu, and E. Björnson, “Joint low-rank and sparse Bayesian channel estimation for ultra-massive MIMO communications,” IEEE Commun. Lett., vol. 30, pp. 312-316, 2026.
[J10] T. Qi, C.-X Wang, C. Huang, J. Shi, J. Li, S. Chen, and e.-H. M. Aggoune, “A novel 6G dynamic channel map based on a hybrid channel model,” IEEE Trans. Veh. Technol., early access, 2025, doi: 10.1109/TVT.2025.3602807.
[J9] S. Chen, C.-X. Wang, J. Li, C. Huang, H. Chang, Y. Huang, J. Huang, and Y. Chen, “Channel map-based angle domain multiple access for cell-free massive MIMO communications,” IEEE J. Sel. Top. Signal Process., vol. 19, no. 2, pp. 366-380, Mar. 2025.
[J8] S. Chen, J. Zhang, E. Björnson, Ö. T. Demir, and B. Ai, “Energy-efficient cell-free massive MIMO through sparse large-scale fading processing,” IEEE Trans. Wireless Commun., vol. 22, no. 12, pp. 9374-9389, Dec. 2023. [Download Simulation Code]
[J7] S. Chen, J. Zhang, E. Björnson, and B. Ai, “Improving fairness for cell-free massive MIMO through interference-aware massive access,” IEEE Trans. Veh. Technol., vol. 72, no. 4, pp. 5468-5472, Apr. 2023.
[J6] L. Luo, J. Zhang, S. Chen, X. Zhang, B. Ai, and D. W. K. Ng, “Downlink power control for cell-free massive MIMO with deep reinforcement learning,” IEEE Trans. Veh. Technol., vol. 71, no. 6, pp. 6772-6777, June 2022. [Download Simulation Code]
[J5] S. Chen, J. Zhang, E. Björnson, J. Zhang, and B. Ai, “Structured massive access for scalable cell-free massive MIMO systems,” IEEE J. Sel. Areas Commun., vol. 39, no. 4, pp. 1086-1100, Apr. 2021. [Download Simulation Code]
[J4] S. Chen, J. Zhang, Y. Jin, and B. Ai, “Wireless powered IoE for 6G: Massive access meets scalable cell-free massive MIMO,” China Commun., vol. 17, no. 12, pp. 92-109, Dec. 2020.
[J3] J. Zheng, J. Zhang, S. Chen, H. Zhao, and B. Ai, “Wireless powered UAV relay communications over fluctuating two-ray fading channels,” Phys. Commun., vol. 35, Aug. 2019
[J2] S. Chen, J. Zhang, G. K. Karagiannidis, and B. Ai, “Effective rate of MISO systems over Fisher-Snedecor F fading channels,” IEEE Commun. Lett., vol. 22, no. 12, pp. 2619-2622, Dec. 2018.
[J1] W. Zeng, J. Zhang, S. Chen, K. P Peppas, and B. Ai, “Physical layer security over fluctuating two-ray fading channels,” IEEE Trans. Veh. Technol., vol. 67, no. 9, pp. 8949-8953, Sept. 2018.
International Conference Papers
[C13] Y. Zhang, Z. Xu, S. Chen*, and Z. Cheng, “Agentic QoE optimization for caching-aware cooperative clustering in cell-free railway systems,” in Proc. IEEE GC’25 Workshops, Taipei, China, to appear, Dec. 2025.
[C12] D. Chen, S. Chen*, S. Yang, J. Huang, X. Wu, and C.-X. Wang*, “A novel base station deployment scheme for network planning in 6G outdoor hotspot scenarios,” in Proc. IEEE VTC'25-Fall, Chengdu, China, Oct. 2025, PP. 1-6.
[C11] S. Chen, C.-X. Wang, J. Li, C. Huang, H. Chang, and Y. Chen, “Improving cell-free massive MIMO through channel map-based angle domain multiple access,” in Proc. IEEE ICC'25, Montreal, QC, Canada, June 2025, pp. 1031-1036. [Best Paper Award]
[C10] Y. Ou, J. Huang, S. Chen, S. Yang, and C.-X. Wang, “Impacts of user mobility on URLLC system performance metrics over time-varying channels,” in Proc. IEEE GC'24, Cape Town, South Africa, Dec. 2024, pp. 2196-2201.
[C9] T. Qi, C. Huang, J. Shi, J. Li, S. Chen, and C.-X. Wang, “A novel dynamic channel map for 6G MIMO communications,” in Proc. IEEE/CIC ICCC'24, Hangzhou, China, Aug. 2024, pp. 809-814.
[C8] S. Chen, J. Zhang, E. Björnson, Ö. T. Demir, and B. Ai, “Sparse large-scale fading decoding in cell-free massive MIMO systems,” in Proc. IEEE SPAWC'22, Oulu, Finland, July 2022, pp. 1-5.
[C7] S. Chen, J. Zhang, Z. Chen, and B. Ai, “Treating interference as noise in cell-free massive MIMO networks,” in Proc. IEEE ICC'22, Seoul, Korea, Republic of, May 2022, pp. 1385-1390. [IEEE ComSoc Student Grant]
[C6] L. Luo, J. Zhang, S. Chen, and B. Ai, “Performance analysis and power control of cell-free massive MIMO over non-reciprocal channels,” in Proc. IEEE/CIC ICCC'21, Xiamen, China, July 2021, pp. 1-6.
[C5] S. Chen, J. Zhang, E. Björnson, S. Wang, C. Xing, and B. Ai, “Wireless caching: Cell-free versus small cells,” in Proc. IEEE ICC'21, Montreal, QC, Canada, June 2021, pp. 1-6. [IEEE ComSoc Student Grant]
[C4] Y. Guo, Y. Zhang, S. Chen, J. Zheng, and J. Zhang, “Hybrid precoding for millimeter wave multiuser massive MIMO systems with low-resolution DACs,” in Proc. IEEE VTC'20-Spring, Antwerp, Belgium, May 2020, pp. 1-5.
[C3] J. Fan, J. Zhang, S. Chen, J. Zheng, and B. Ai, “The application of NOMA on high-speed railway with partial CSI,” in Proc. IEEE VTC'19-Fall, Honolulu, HI, USA, Sept. 2019, pp. 1-5.
[C2] W. Fan, J. Zhang, E. Bjornson, S. Chen, and Z. Zhong, “Performance analysis of cell-free massive MIMO over spatially correlated fading channels,” in Proc. IEEE ICC'19, Shanghai, China, May 2019, pp. 1-6.
[C1] S. Chen, J. Zhang, W. Zeng, K. P. Peppas, and B. Ai, “Performance analysis of wireless powered UAV relaying systems over κ-μ fading channels,” in Proc. IEEE GC'18 Workshops, Abu Dhabi, United Arab Emirates, Dec. 2018, pp. 1-6.
Dissertation
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