Home / Journal Journal Journal * YEAR 2026 [77] S. Chen, Y. Hui, Y. Qin, C. Su, J. An , W. Meng and C. Yuen, “Stacked intelligent metasurfaces-enabled transceiver: Functional coding and data-enhanced deep unfolding detection ,” IEEE Trans. Wireless Commun. , vol. 25, pp. 14970-14986, 2026.[arXiv] [76] K. R. R. Ranasinghe, J. An , I. A. M. Sandoval, H. S. Rou, G. T. F. de Abreu, C. Yuen and M. Debbah, “Flexible intelligent metasurfaces in high-mobility MIMO integrated sensing and communications ,” IEEE Trans. Wireless Commun. , vol. 25, pp. 13319-13335, 2026.[arXiv ] [75] A. Mohammadzadeh, H. Zarini, M. J. Siavoshani, M. R. Mili, A. Movaghar, J. An and N. Al-Dhahir, “Meta reinforcement learning empowered orchestration of SIM and RIS for downlink multiuser communications ,” IEEE Trans. Veh. Technol. , 2026, Early Access.[arXiv] [74] H. Pan, B. Lin, J. An and G. Sun, “Joint deployment, association and power optimization for UAV-mounted STAR-RIS-assisted maritime communications ,” IEEE Trans. Veh. Technol. , 2026, Early Access.[arXiv] [73] X. Jia, J. An , L. Gan and H. Li, “Low-overhead dynamic codebook design for RIS-aided multiuser MISO systems ,” Signal Process. , vol. 244, Jul. 2026.[arXiv] [72] W. Ma, B. Lin, H. Pan, G. Sun, E. Shi, J. An and C. Yuen, “SIM-assisted secure mobile communications via enhanced proximal policy optimization algorithm ,” IEEE Trans. Wireless Commun. , vol. 25, pp. 11964-11979, 2026.[arXiv ] [71] H. Wang, Y. Cao, T. Lv, J. Wang, N. Wei, J. An and C. Yuen, “Stacked intelligent metasurfaces-based electromagnetic wave domain interference-free precoding ,” IEEE Trans. Wireless Commun. , vol. 25, pp. 10775-10790, 2026.[arXiv ] [70] Q. Chen, Q. Qi, J. An , Z. Yang, X. Chen, C. Huang and C. Yuen, “Stacked intelligent metasurface enhanced integrated communication and computation ,” IEEE Internet Things J. , vol. 13, no. 7, pp. 14442-14453, 1 April1, 2026.[arXiv] [69] Z. Li, J. An and C. Yuen, “Stacked intelligent metasurface-enhanced MIMO OFDM wideband communication systems ,” IEEE Trans. Wireless Commun. , vol. 25, pp. 9608-9622, 2026.[arXiv ] [68] C. Jiang, H. Yuan, C. Zhang, J. An , C. Huang and C. Yuen, “Stacked intelligent metasurface-enabled satellite integrated sensing and communications systems ,” IEEE Wireless Commun. Lett. , vol. 15, pp. 930-934, 2026.[arXiv] [67] J. Fang, C. Zhang, J. An , H. Yu, Q. Wu, M. Debbah and C. Yuen, “Stacked intelligent metasurface assisted multiuser communications: From a rate fairness perspective ,” IEEE Trans. Commun. , vol. 74, pp. 1253-1268, 2026.[arXiv ] [66] X. Zhou, Z. Teng, J. An and L. Gan, “DOA estimation for time-modulated linear array based on Golay-Paired Hadamard matrix ,” IEEE Signal Process. Lett. , vol. 33, pp. 6-10, 2026.[arXiv] [65] S. Yang, Z. Wan, B. Ning, W. Mei, J. An , Y. C. Eldar and C. Yuen, “Flexible intelligent metasurface-aided wireless communications: Architecture and performance ,” IEEE Trans. Wireless Commun. , vol. 25, pp. 6823-6836, 2026.[arXiv ] [64] A. Ming, J. An , L. Gan, A. Nallanathan and N. Al-Dhahir, “Flexible intelligent metasurface for mitigating beam squint in wideband communications ,” IEEE Trans. Veh. Technol. , vol. 75, no. 3, pp. 5227-5232, Mar. 2026.[arXiv] [63] E. Shi, J. Zhang, J. An , M. Di Renzo, B. Ai and C. Yuen, “Energy-efficient SIM-assisted communications: How many layers do we need? ,” IEEE Trans. Wireless Commun. , vol. 25, pp. 4563-4578, 2026.[arXiv ] [62] H. Niu, J. An , T. Wu, J. Chen, Y. Zhao, Y. L. Guan, M. Di Renzo, M. Debbah, G. K. Karagiannidis, H. V. Poor and C. Yuen, “Introducing meta-fiber into stacked intelligent metasurfaces for MIMO communications: A low-complexity design with only two layers ,” IEEE Trans. Wireless Commun. , vol. 25, pp. 3016-3032, 2026.[arXiv ] [61] M. Liu, J. An , C. Huang and C. Yuen, “Over-the-air ODE-inspired neural network for dual task-oriented semantic communications ,” IEEE Trans. Cogn. Commun. Netw. , vol. 12, pp. 805-819, 2026.[arXiv ] [60] H. Liu, J. An , G. C. Alexandropoulos, D. W. K. Ng, C. Yuen and L. Gan, “Multi-user MISO with stacked intelligent metasurfaces: A DRL-based sum-rate optimization approach ,” IEEE Trans. Cogn. Commun. Netw. , vol. 12, pp. 251-266, 2026.[arXiv ] [code ] * YEAR 2025 [59] J. Jiang, J. An , L. Gan, N. Al-Dhahir, A. Nallanathan and Z. Han, “Enhanced channel estimation for flexible intelligent metasurface-aided communication systems ,” IEEE Trans. Veh. Technol. , 2025, Early Access.[arXiv ] [58] Z. Zhao, J. An , J. Park, L. Gan, H. Li and C. Yuen, “Robust beamfocusing design for near-field secure communications ,” IEEE Trans. Veh. Technol. , 2025, Early Access.[arXiv] [57] H. Hu, J. An , L. Gan and N. Al-Dhahir, “Flexible intelligent metasurface for reconfiguring radio environments ,” IEEE Trans. Veh. Technol. , 2025, Early Access.[arXiv ] [56] Z. Teng, H. Zhang, J. An , L. Gan and H. Li, “Frequency invariant beamformer design exploiting SRV-constrained array response control ,” Signal Process. , vol. 238, Jan. 2025.[arXiv] [55] H. Liu, J. An , X. Jia, L. Gan, G. K. Karagiannidis, B. Clerckx, M. Bennis, M. Debbah and T. J. Cui, “Stacked intelligent metasurfaces for wireless communications: Applications and challenges ,” IEEE Wireless Commun. , vol. 32, no. 4, pp. 46-53, Aug. 2025.[arXiv ] [code] [slides] [post-EN] [post-CN ] [video-EN] [video-CN] [54] Z. Teng, J. An , L. Gan, N. Al-Dhahir and Z. Han, “Flexible intelligent metasurface for enhancing multi-target wireless sensing ,” IEEE Trans. Veh. Technol. , vol. 74, no. 12, pp. 19825-19830, Dec. 2025.[arXiv ] [53] G. Huang, J. An , L. Gan, D. Niyato, M. Debbah and T. J. Cui, “Stacked intelligent metasurfaces for multi-modal semantic communications ,” IEEE Wireless Commun. Lett. , vol. 14, no. 9, pp. 2828-2832, Sept. 2025.[arXiv ] [52] J. An , M. Debbah, T. J. Cui, Z. N. Chen and C. Yuen, “Emerging technologies in intelligent metasurfaces: Shaping the future of wireless communications ,” IEEE Trans. Antennas Propag. , 2025, Early Access. (Invited Paper) [arXiv ] [51] Z. Teng, J. An , C. Masouros, H. Li, L. Gan and D. W. K. Ng, “Dynamic precoding for near-field secure communications: Implementation and performance analysis ,” IEEE Internet Things J. , vol. 12, no. 15, pp. 29427-29442, Aug., 2025.[arXiv ] [50] S. U. Hassan, Z. Ye, J. An and M. B. Hossen, “Sparse channel estimation and passive beamforming with practical phase shift model for IRS-assisted OFDM systems ,” Signal Process. , vol. 234, Sept. 2025.[arXiv] [49] J. An , M. D. Renzo, M. Debbah, H. V. Poor and C. Yuen, “Stacked intelligent metasurfaces for multiuser downlink beamforming in the wave domain ,” IEEE Trans. Wireless Commun. , vol. 24, no. 7, pp. 5525-5538, Jul. 2025.[arXiv ] [48] E. Shi, J. Zhang, J. An , G. Zhang, Z. Liu, C. Yuen and B. Ai, “Joint AP-UE association and precoding for SIM-aided cell-free massive MIMO systems ,” IEEE Trans. Wireless Commun. , vol. 24, no. 6, pp. 5352-5367, Jun. 2025.[arXiv ] [47] J. An , Z. Han, D. Niyato, M. Debbah, C. Yuen and L. Hanzo, “Flexible intelligent metasurfaces for enhancing MIMO communications ,” IEEE Trans. Commun. , vol. 73, no. 9, pp. 7349-7365, Sept. 2025.[arXiv ] [46] Z. Yu, J. An , L. Gan, H. Li and S. Chatzinotas, “Weighted codebook scheme for RIS-assisted point-to-point MIMO communications ,” IEEE Wireless Commun. Lett. , vol. 14, no. 5, pp. 1571-1575, May 2025.[arXiv ] [45] S. Yang, J. An , Y. Xiu, W. Lyu, B. Ning, Z. Zhang, M. Debbah and C. Yuen, “Flexible antenna arrays for wireless communications: Modeling and performance evaluation ,” IEEE Trans. Wireless Commun. , vol. 24, no. 6, pp. 4937-4951, Jun. 2025.[arXiv ] [44] Q. Li, M. El-Hajjar, C. Xu, J. An , C. Yuen and L. Hanzo, “Stacked intelligent metasurface-based transceiver design for near-field wideband systems ,” IEEE Trans. Commun. , 2025, Early Access.[arXiv ] [code] [slides] [post-EN] [post-CN ] [video-EN] [video-CN] [43] E. Shi, J. Zhang, Y. Zhu, J. An , C. Yuen and B. Ai, “Uplink performance of stacked intelligent metasurface-enhanced cell-free massive MIMO systems ,” IEEE Trans. Wireless Commun. , vol. 24, no. 5, pp. 3731-3746, May 2025.[arXiv ] [42] J. An , C. Yuen, M. D. Renzo, M. Debbah, H. V. Poor and L. Hanzo, “Flexible intelligent metasurfaces for downlink multiuser MISO communications ,” IEEE Trans. Wireless Commun. , vol. 24, no. 4, pp. 2940-2955, Apr. 2025.[arXiv] [41] H. Niu, X. Lei, J. An , L. Zhang and C. Yuen, “On the efficient design of stacked intelligent metasurfaces for secure SISO transmission ,” IEEE Trans. Inf. Forensics Security , vol. 20, pp. 60-70, Mar. 2025.[arXiv] [code] [slides] [post-EN] [post-CN ] [video-EN] [video-CN] [40] G. Huang, J. An , Z. Yang, L. Gan, M. Bennis and M. Debbah, “Stacked intelligent metasurfaces for task-oriented semantic communications ,” IEEE Wireless Commun. Lett. , vol. 14, no. 2, pp. 310-314, Feb. 2025.[arXiv ] [code] [slides] [post-EN] [post-CN ] [video-EN ] [video-CN ] [39] Y. Hu, J. Zhang, E. Shi, Y. Lu, J. An , C. Yuen and B. Ai, “Joint beamforming and power allocation design for stacked intelligent metasurfaces-aided cell-free massive MIMO systems ,” IEEE Trans. Veh. Technol. , vol. 74, no. 3, pp. 5235-5240, Mar. 2025.[arXiv] [code] [slides] [post-EN] [post-CN ] [video-EN] [video-CN] * YEAR 2024 [38] L. Liu, Z. Zhang, X. Zhang, P. Wei, J. An and H. Li, “Joint spectrum sensing and DOA estimation based on a resource-efficient sub-Nyquist array receiver ,” IEEE Trans. Signal Process. , vol. 72, pp. 5354-5370, Oct. 2024.[arXiv] [37] H. Niu, J. An , A. Papazafeiropoulos, L. Gan, S. Chatzinotas and M. Debbah, “Stacked intelligent metasurfaces for integrated sensing and communications ,” IEEE Wireless Commun. Lett. , vol. 13, no. 10, pp. 2807-2811, Oct. 2024.[arXiv ] [code] [slides] [post-EN] [post-CN ] [video-EN ] [video-CN ] [36] Z. Yu, J. An , E. Basar, L. Gan and C. Yuen, “Environment-aware codebook design for RIS-assisted MU-MISO communications: Implementation and performance analysis ,” IEEE Trans. Commun. , vol. 72, no. 12, pp. 7466-7479, Dec. 2024.[arXiv ] [code] [slides] [post-EN] [post-CN ] [video-EN ] [video-CN ] [35] J. An , C. Yuen, Y. L. Guan, M. Di Renzo, M. Debbah, H. V. Poor and L. Hanzo, “Two-dimensional direction-of-arrival estimation using stacked intelligent metasurfaces ,” IEEE J. Sel. Areas Commun. , vol. 42, no. 10, pp. 2786-2802, Oct. 2024.[arXiv ] [34] J. An , C. Yuen, L. Dai, M. Di Renzo, M. Debbah and L. Hanzo, “Near-field communications: Research advances, potential, and challenges ,” IEEE Wireless Commun. , vol. 31, no. 3, pp. 100-107, Jun. 2024.[arXiv ] [33] Q. Li, M. El-Hajjar, C. Xu, J. An , C. Yuen and L. Hanzo, “Stacked intelligent metasurfaces for holographic MIMO-aided cell-free networks ,” IEEE Trans. Commun. , vol. 72, no. 11, pp. 7139-7151, Nov. 2024.[arXiv ] [32] A. Papazafeiropoulos, J. An , P. Kourtessis, T. Ratnarajah and S. Chatzinotas, “Achievable rate optimization for stacked intelligent metasurface-assisted holographic MIMO communications ,” IEEE Trans. Wireless Commun. , vol. 23, no. 10, pp. 13173-13186, Oct. 2024.[arXiv ] [31] J. An , C. Yuen, C. Xu, H. Li, D. W. K. Ng, M. Di Renzo, M. Debbah and L. Hanzo, “Stacked intelligent metasurface-aided MIMO transceiver design ,” IEEE Wireless Commun. , vol. 31, no. 4, pp. 123-131, Aug. 2024. (ESI Highly Cited Paper) [arXiv ] [30] X. Yao, J. An , L. Gan, M. Di Renzo and C. Yuen, “Channel estimation for stacked intelligent metasurface-assisted wireless networks ,” IEEE Wireless Commun. Lett. , vol. 13, no. 5, pp. 1349-1353, May 2024.[arXiv ] [code] [slides] [post-EN] [post-CN ] [video-EN ] [video-CN ] [29] S. Lin, J. An , L. Gan, M. Debbah and C. Yuen, “Stacked intelligent metasurface enabled LEO satellite communications relying on statistical CSI ,” IEEE Wireless Commun. Lett. , vol. 13, no. 5, pp. 1295-1299, May 2024.[arXiv ] [code] [slides] [post-EN] [post-CN ] [video-EN ] [video-CN ] [28] G. Sun, R. He, J. An , B. Ai, Y. Song, Y. Niu, G. Wang and C. Yuen, “Geometric-based channel modeling and analysis for double-RIS-aided vehicle-to-vehicle communication systems ,” IEEE Internet Things J. , vol. 11, no. 10, pp. 18888-18901, May 2024.[arXiv] [27] J. An , C. Xu, D. W. K. Ng, C. Yuen and L. Hanzo, “Adjustable-delay RIS is capable of improving OFDM systems ,” IEEE Trans. Veh. Technol. , vol. 73, no. 7, pp. 9927-9942, Jul. 2024.[arXiv ] [26] N. U. Hassan, J. An , M. Di Renzo, M. Debbah and C. Yuen, “Efficient beamforming and radiation pattern control using stacked intelligent metasurfaces ,” IEEE Open J. Commun. Soc. , vol. 5, pp. 599-611, Jan. 2024.[arXiv] [25] W. Wang, C. Luo, J. An , L. Gan, H. Liao and C. Yuen, “Semisupervised RF fingerprinting with consistency-based regularization ,” IEEE Internet Things J. , vol. 11, no. 5, pp. 8624-8636, Mar. 2024.[arXiv ] [24] W. Xu, J. An , H. Li, L. Gan and C. Yuen, “Algorithm-unrolling-based distributed optimization for RIS-assisted cell-free networks ,” IEEE Internet Things J. , vol. 11, no. 1, pp. 944-957, Jan. 2024. (ESI Highly Cited Paper) [arXiv ] [23] J. An , C. Xu, Q. Wu, D. W. K. Ng, M. Di Renzo, C. Yuen and L. Hanzo, “Codebook-based solutions for reconfigurable intelligent surfaces and their open challenges ,” IEEE Wireless Commun. , vol. 31, no. 2, pp. 134-141, Apr. 2024. (ESI Highly Cited Paper) [arXiv ] * YEAR 2023 [22] J. An , C. Xu, D. W. K. Ng, G. C. Alexandropoulos, C. Huang, C. Yuen and L. Hanzo, “Stacked intelligent metasurfaces for efficient holographic MIMO communications in 6G ,” IEEE J. Sel. Areas Commun. , vol. 41, no. 8, pp. 2380-2396, Aug. 2023. (ESI Highly Cited Paper) [arXiv ] [21] H. Liu, J. An , W. Xu, X. Jia, L. Gan and C. Yuen, “K-means based constellation optimization for index modulated reconfigurable intelligent surfaces ,” IEEE Commun. Lett. , vol. 27, no. 8, pp. 2152-2156, Aug. 2023.[arXiv ] [code] [slides] [post-EN] [post-CN ] [video-EN] [video-CN] [20] J. An , C. Yuen, C. Huang, M. Debbah, H. V. Poor and L. Hanzo, “A tutorial on holographic MIMO communications — Part III: Open opportunities and challenges ,” IEEE Commun. Lett. , vol. 27, no. 7, pp. 1674-1678, Jul. 2023. (Invited Paper) [arXiv ] [19] J. An , C. Yuen, C. Huang, M. Debbah, H. V. Poor and L. Hanzo, “A tutorial on holographic MIMO communications — Part II: Performance analysis and holographic beamforming ,” IEEE Commun. Lett. , vol. 27, no. 7, pp. 1669-1673, Jul. 2023. (Invited Paper) [arXiv ] [18] J. An , C. Yuen, C. Huang, M. Debbah, H. V. Poor and L. Hanzo, “A tutorial on holographic MIMO communications — Part I: Channel modeling and channel estimation ,” IEEE Commun. Lett. , vol. 27, no. 7, pp. 1664-1668, Jul. 2023. (Invited Paper) [arXiv ] [17] J. An , H. Li, D. W. K. Ng and C. Yuen, “Fundamental detection probability vs. achievable rate tradeoff in integrated sensing and communication systems ,” IEEE Trans. Wireless Commun. , vol. 22, no. 12, pp. 9835-9853, Dec. 2023.[arXiv ] [16] X. Cai, C. Huang, J. An , W. Xu, L. Wang and C. Yuen, “Non-coherent chaotic communications aided by RIS: A performance-enhanced approach ,” IEEE Commun. Lett. , vol. 27, no. 6, pp. 1614-1618, Jun. 2023.[arXiv] [15] X. Jia, J. An , H. Liu, H. Liao, L. Gan and C. Yuen, “Environment-aware codebook for reconfigurable intelligent surface-aided MISO communications ,” IEEE Wireless Commun. Lett. , vol. 12, no. 7, pp. 1174-1178, Jul. 2023.[arXiv ] [code] [slides] [post-EN] [post-CN ] [video-EN] [video-CN] [14] R. Li, H. Liao, J. An , C. Yuen and L. Gan, “Intra-class universal adversarial attacks on deep learning-based modulation classifiers ,” IEEE Commun. Lett. , vol. 27, no. 5, pp. 1297-1301, May 2023.[arXiv] [13] C. Xu, J. An , T. Bai, S. Sugiura, R. G. Maunder, L.-L. Yang, M. Di Renzo and L. Hanzo, “Antenna selection for reconfigurable intelligent surfaces: A transceiver-agnostic passive beamforming configuration ,” IEEE Trans. Wireless Commun. , vol. 22, no. 11, pp. 7756-7774, Nov. 2023.[arXiv] [12] C. Xu, J. An , T. Bai, S. Sugiura, R. G. Maunder, Z. Wang, L.-L. Yang and L. Hanzo, “Channel estimation for reconfigurable intelligent surface assisted high-mobility wireless systems ,” IEEE Trans. Veh. Technol. , vol. 72, no. 1, pp. 718-734, Jan. 2023.[arXiv] [11] C. Xu, L. Xiang, J. An , C. Dong, S. Sugiura, R. G. Maunder, L.-L. Yang and L. Hanzo, “OTFS-aided RIS-assisted SAGIN systems outperform their OFDM counterparts in doubly selective high-Doppler scenarios ,” IEEE Internet Things J. , vol. 10, no. 1, pp. 682-703, Jan. 2023.[arXiv] * YEAR 2022 [10] W. Xu, J. An , Y. Xu, C. Huang, L. Gan and C. Yuen, “Time-varying channel prediction for RIS-assisted MU-MISO networks via deep learning ,” IEEE Trans. Cogn. Commun. Netw. , vol. 8, no. 4, pp. 1802-1815, Dec. 2022.[arXiv ] [9] W. Xu, J. An , C. Huang, L. Gan and C. Yuen, “Deep reinforcement learning based on location-aware imitation environment for RIS-aided mmWave MIMO systems ,” IEEE Wireless Commun. Lett. , vol. 11, no. 7, pp. 1493-1497, Jul. 2022.[arXiv ] [8] J. An , C. Xu, Y. Liu, L. Gan and L. Hanzo, “The achievable rate analysis of generalized quadrature spatial modulation and a pair of low-complexity detectors ,” IEEE Trans. Veh. Technol. , vol. 71, no. 5, pp. 5203-5215, May 2022.[arXiv] [7] C. Xu, J. An , T. Bai, L. Xiang, S. Sugiura, R. G. Maunder, L.-L. Yang and L. Hanzo, “Reconfigurable intelligent surface assisted multi-carrier wireless systems for doubly selective high-mobility Ricean channels ,” IEEE Trans. Veh. Technol. , vol. 71, no. 4, pp. 4023-4041, Apr. 2022.[arXiv] [6] J. An , Q. Wu and C. Yuen, “Scalable channel estimation and reflection optimization for reconfigurable intelligent surface-enhanced OFDM systems ,” IEEE Wireless Commun. Lett. , vol. 11, no. 4, pp. 796-800, Apr. 2022.[arXiv ] [5] J. An , C. Xu, L. Wang, Y. Liu, L. Gan and L. Hanzo, “Joint training of the superimposed direct and reflected links in reconfigurable intelligent surface assisted multiuser communications ,” IEEE Trans. Green Commun. Netw. , vol. 6, no. 2, pp. 739-754, Jun. 2022.[arXiv ] [4] J. An , C. Xu, Y. Liu, L. Gan and L. Hanzo, “Low-complexity improved-rate generalised spatial modulation: Bit-to-symbol mapping, detection and performance analysis ,” IEEE Trans. Veh. Technol. , vol. 71, no. 1, pp. 1060-1065, Jan. 2022.[arXiv ] [3] J. An , C. Xu, L. Gan and L. Hanzo, “Low-complexity channel estimation and passive beamforming for RIS-assisted MIMO systems relying on discrete phase shifts ,” IEEE Trans. Commun. , vol. 70, no. 2, pp. 1245-1260, Feb. 2022. (ESI Highly Cited Paper) [arXiv] * YEAR 2021 * YEAR 2020 Conference * YEAR 2026 * YEAR 2025 [40] H. Niu, J. An , S. Lin, L. Gan, M. Matthaiou and S. Chatzinotas, “Transmit power minimization in stacked intelligent metasurface-aided multi-user systems ,” Proc. IEEE Global Commun. Conf. (GLOBECOM) , Taipei, Taiwan, China, 2025, pp. 6400-6405.[arXiv] [39] M. Fan, G. Sun, H. Pan, J. Wang, J. An , H. Du and C. Yuen, “Joint association and phase shifts design for UAV-mounted stacked intelligent metasurfaces-assisted communications ,” Proc. IEEE Global Commun. Conf. (GLOBECOM) , Taipei, Taiwan, China, 2025, pp. 2753-2758.[arXiv ] [38] Z. Li, J. An and C. Yuen, “Fundamental trade-off in wideband stacked intelligent metasurface assisted OFDMA systems ,” Proc. IEEE Global Commun. Conf. (GLOBECOM) , Taipei, Taiwan, China, 2025, pp. 2384-2389.[arXiv ] [37] S. M. Kazemi, H. Zarini, J. An , M. Sookhak, L. B. Le and Z. Ding, “Stacked intelligent metasurface systems with non-orthogonal multiple access ,” Proc. IEEE Global Commun. Conf. (GLOBECOM) , Taipei, Taiwan, China, 2025, pp. 3753-3758.[arXiv] [36] H. Hu, J. An , L. Gan, A. Nallanathan and N. Al-Dhahir, “Weighted sum-rate maximization for flexible intelligent metasurface aided multicell systems ,” Proc. IEEE Global Commun. Conf. (GLOBECOM) , Taipei, Taiwan, China, 2025, pp. 3618-3623.[arXiv] [35] H. Hu, J. An , L. Gan and C. Yuen, “Performance analysis of RIS-aided high-mobility wireless systems ,” Proc. IEEE Veh. Technol. Conf. (VTC2025-Fall) , Chengdu, China, 2025, pp. 1-5.[arXiv ] [34] H. Zarini, S. M. Kazemi, J. An , A. Movaghar, M. Sookhak and N. Yilmazer, “On the application of active RIS to stacked intelligent metasurface systems ,” Proc. IEEE Int. Symposium Personal, Indoor, Mobile Radio Commun. (PIMRC) , Istanbul, Turkiye, 2025, pp. 1-6.[arXiv] [33] H. Zarini, S. M. Kazemi, J. An , A. Movaghar, M. Sookhak and N. Yilmazer, “QoE-driven resource allocation for stacked intelligent metasurface systems ,” Proc. IEEE Int. Symposium Personal, Indoor, Mobile Radio Commun. (PIMRC) , Istanbul, Turkiye, 2025, pp. 1-6.[arXiv] [32] H. Zarini, S. M. Kazemi, J. An , M. Sookhak and N. Yilmazer, “Interplay of STAR-RIS and SIM: Joint computing and communication for full-space coverage ,” Proc. IEEE Int. Symposium Personal, Indoor, Mobile Radio Commun. (PIMRC) , Istanbul, Turkiye, 2025, pp. 1-6.[arXiv] [31] X Li, M. Liu, L. Wei, J. An , M. Debbah and C. Yuen, “WirelessMathBench: A mathematical modeling benchmark for LLMs in wireless communications ,” Findings of the Association for Computational Linguistics (ACL) , Vienna, Austria, 2025, pp. 10984-11009.[arXiv] [30] M. Liu, X. Li, J. An and C. Yuen, “Onboard terrain classification via stacked intelligent metasurface-diffractive deep neural networks from SAR level-0 raw data ,” ICLR ML4RS Workshop , Singapore, 2025.[arXiv] [29] H. Liu, J. An , Q. Ma, L. Gan, M. Bennis, M. Debbah and T. J. Cui, “A novel hybrid optical-electronic neural network approach to task-oriented semantic communications ,” Proc. IEEE Int. Conf. Commun. (ICC) , Montreal, QC, Canada, 2025, pp. 2418-2423.[arXiv] [28] H. Zarini, S. M. Kazemi, J. An , M. Sookhak and J. Choi, “On the orchestration of SIM and UAV ,” Proc. IEEE Int. Conf. Commun. (ICC) , Montreal, QC, Canada, 2025, pp. 2913-2918.[arXiv] [27] M. Amiri, S. Javadi, H. Zarini, M. R. Mili, J. An , M. Sookhak and I. Krikidis, “Stacked intelligent metasurface for simultaneous wireless information and power transfer ,” Proc. IEEE Int. Conf. Commun. (ICC) , Montreal, QC, Canada, 2025, pp. 4583-4588.[arXiv] [26] J. An , C. Yuen, M. Debbah and L. Hanzo, “Flexible intelligent metasurfaces for enhanced MIMO communications ,” Proc. IEEE Int. Conf. Commun. (ICC) , Montreal, QC, Canada, 2025, pp. 1784-1789.[arXiv] [25] X. Yao, J. An , L. Gan, B. Clerckx and M. Di Renzo, “Sparse Bayesian learning based channel estimation for SIM-assisted near-field communications ,” Proc. IEEE Int. Conf. Commun. (ICC) , Montreal, QC, Canada, 2025, pp. 1760-1765.[arXiv] [24] S. Lin, J. An , L. Gan and M. Debbah, “UAV-mounted SIM: A hybrid optical-electronic neural network for DoA estimation ,” Proc. IEEE Int. Conf. Acoust., Speech Signal Process. (ICASSP) , Hyderabad, India, 2025, pp. 1-5.[arXiv] [video-EN ] [23] L. Liu, X. Zhang, X. Zhou, L. Gan, J. An and H. Li, “Identical-delay based 2-D DOA and frequency joint estimation with sub-Nyquist sampling for URA ,” Proc. IEEE Int. Conf. Acoust., Speech Signal Process. (ICASSP) , Hyderabad, India, 2025, pp. 1-5.[arXiv] * YEAR 2024 [22] S. Yang, J. An , Y. Xiu, W. Lyu, B. Ning, Z. Zhang, M. Debbah and C. Yuen, “Flexible antenna arrays for wireless communications: Modeling and performance evaluation ,” Proc. Int. Conf. Commun. Technol. (ICCT) , Chengdu, China, 2024, pp. 2034-2039.[arXiv] [21] J. An , C. Yuen, M. Di Renzo, M. Debbah, H. V. Poor and L. Hanzo, “Downlink multiuser communications relying on flexible intelligent metasurfaces ,” Proc. IEEE Global Commun. Conf. (GLOBECOM) , Cape Town, South Africa, 2024, pp. 4932-4937.[arXiv ] [20] Z. Teng, J. An , X. Lu, Z. Xu and L. Gan, “A dynamic precoding scheme for near-field secure communications ,” Proc. IEEE Global Commun. Conf. (GLOBECOM) , Cape Town, South Africa, 2024, pp. 4095-4100.[arXiv] [19] X. Jia, J. An , X. Lu, Z. Xu, L. Gan and C. Yuen, “Dynamic codebook for reconfigurable intelligent surface-aided multiuser MISO communications ,” Proc. IEEE Global Commun. Conf. (GLOBECOM) , Cape Town, South Africa, 2024, pp. 5138-5143.[arXiv] [18] M. Liu, J. An , C. Huang, A. Alhammadi, F. Bader, S. Muhaidat, M. Debbah and C. Yuen, “Air-ODE neural network with distributed RISs aided communication systems ,” Proc. IEEE Middle East Conf. Commun. Netw. (MECOM) , Abu Dhabi, United Arab Emirates, 2024, pp. 356-361.[arXiv] [17] Z. Teng, H. Zhang, J. An , L. Gan, H. Li and C. Yuen, “Low-complexity frequency invariant beamformer design based on SRV-constrained array response control ,” Proc. IEEE Veh. Technol. Conf. (VTC2024-Spring) , Singapore, Singapore, 2024, pp. 1-5.[arXiv] [video-EN ] [16] X. Jia, J. An , H. Liu, L. Gan, M. Di Renzo, M. Debbah and C. Yuen, “Stacked intelligent metasurface enabled near-field multiuser beamfocusing in the wave domain ,” Proc. IEEE Veh. Technol. Conf. (VTC2024-Spring) , Singapore, Singapore, 2024, pp. 1-5.[arXiv ] [video-EN ] [15] Z. Yu, J. An , L. Gan and C. Yuen, “Environment-aware codebook for RIS-assisted MU-MISO communications: Implementation and performance analysis ,” Proc. IEEE Veh. Technol. Conf. (VTC2024-Spring) , Singapore, Singapore, 2024, pp. 1-5.[arXiv ] [video-EN ] [14] X. Yao, J. An , G. Huang, H. Liu, L. Gan and C. Yuen, “Sparse channel estimation for stacked intelligent metasurface-assisted mmWave communications ,” Proc. IEEE VTS Asia Pacific Wireless Commun. Symp. (APWCS) , Singapore, Singapore, 2024, pp. 1-5.[arXiv] [13] E. Shi, J. Zhang, Y. Zhu, Z. Liu, J. An , C. Yuen and B. Ai, “Uplink performance and beamforming design of SIM-enhanced cell-free massive MIMO systems ,” Proc. IEEE VTS Asia Pacific Wireless Commun. Symp. (APWCS) , Singapore, Singapore, 2024, pp. 1-5.[arXiv] [12] H. Niu, J. An , L. Zhang, X. Lei and C. Yuen, “Enhancing physical layer security for SISO systems using stacked intelligent metasurfaces ,” Proc. IEEE VTS Asia Pacific Wireless Commun. Symp. (APWCS) , Singapore, Singapore, 2024, pp. 1-5.[arXiv] [11] Z. Li, J. An and C. Yuen, “Stacked intelligent metasurfaces for fully-analog wideband beamforming design ,” Proc. IEEE VTS Asia Pacific Wireless Commun. Symp. (APWCS) , Singapore, Singapore, 2024, pp. 1-5.[arXiv] [code] [slides] [post-EN] [post-CN ] [video-EN] [video-CN] [10] H. Liu, J. An , D. W. K. Ng, G. C. Alexandropoulos and L. Gan, “DRL-based orchestration of multi-user MISO systems with stacked intelligent metasurfaces ,” Proc. IEEE Int. Conf. Commun. (ICC) , Denver, CO, USA, 2024, pp. 4991-4996.[arXiv ] [9] J. An , C. Yuen, Y. L. Guan, M. Di Renzo, M. Debbah, H. V. Poor and L. Hanzo, “Stacked intelligent metasurface performs a 2D DFT in the wave domain for DOA estimation ,” Proc. IEEE Int. Conf. Commun. (ICC) , Denver, CO, USA, 2024, pp. 3445-3451.[arXiv ] [8] A. M. Nor, O. Fratu, S. Halunga, J. An , Z. Zaharis and P. Velanas, “Position based near-field codebook design and beam training for extremely large-scale ARIS ,” Proc. IEEE Int. Mediterranean Conf. Commun. Netw. (MeditCom) , Madrid, Spain, 2024, pp. 215-220.[arXiv] [7] Q. -U. -A. Nadeem, J. An and A. Chaaban, “Hybrid digital-wave domain channel estimator for stacked intelligent metasurface enabled multi-user MISO systems ,” Proc. IEEE Wireless Commun. Netw. Conf. (WCNC) , Dubai, United Arab Emirates, 2024, pp. 1-6.[arXiv ] [6] L. Liu, Z. Li, J. An , L. Gan and H. Li, “DOA estimation for switch-element arrays based on sparse representation ,” Proc. IEEE Int. Conf. Acoust., Speech Signal Process. (ICASSP) , Seoul, Korea, Republic of, 2024, pp. 8506-8510.[arXiv] [5] L. Liu, Z. Li, J. An , L. Gan and H. Li, “A CCM-based joint DOA-frequency estimation and signal recovery with efficient sub-Nyquist sampling ,” Proc. IEEE Int. Conf. Acoust., Speech Signal Process. (ICASSP) , Seoul, Korea, Republic of, 2024, pp. 8501-8505.[arXiv] * YEAR 2023 [4] J. An and C. Yuen, “Pilot power allocation for channel estimation in a multi-RIS aided communication system ,” Proc. IEEE Global Commun. Conf. (GLOBECOM) , Kuala Lumpur, Malaysia, 2023, pp. 5707-5713.[arXiv ] [3] J. An , M. Di Renzo, M. Debbah and C. Yuen, “Stacked intelligent metasurfaces for multiuser beamforming in the wave domain ,” Proc. IEEE Int. Conf. Commun. (ICC) , Rome, Italy, 2023, pp. 2834-2839. (IEEE ICC Best Paper Award) [arXiv ] * YEAR 2022 * YEAR 2018 