Chongjun Ouyang

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Journal Papers

  1. GNN-aided Over-the-Air Reciprocity Calibration for Cell-Free Massive MIMO Systems
    Mingjun Sun, Xidong Mu, Shaochuan Wu, Chongjun Ouyang, and Yuanwei Liu
    IEEE Wireless Communications Letters, 2026+

  2. Robust Beamforming for Pinching-Antenna Systems-based Multi-User Communications
    Mingjun Sun, Xidong Mu, Chongjun Ouyang, Guanyu Shang, and Yuanwei Liu
    IEEE Wireless Communications Letters, 2026+

  3. Pinching-Antenna Assisted Sensing: A Bayesian Cramér-Rao Bound Perspective [Arxiv]
    Hao Jiang, Chongjun Ouyang, Zhaolin Wang, Yuanwei Liu, Arumugam Nallanathan, and Zhiguo Ding
    IEEE Transactions on Communications, 2026+

  4. Dynamic Metasurface Antenna-Enabled Multicast Transmission With Finite-Alphabet Inputs
    Jiayi Li, Hao Xu, Chongjun Ouyang, and Hongwen Yang
    IEEE Internet of Things Journal, 2026+

  5. Robust Beamforming for Pinching-Antenna Systems [Arxiv]
    Mingjun Sun, Chongjun Ouyang, Shaochuan Wu, and Yuanwei Liu
    IEEE Transactions on Vehicular Technology, 2026+

  6. Vision-Aided Multi-Stream Hybrid Beamforming for Millimeter Wave MIMO Systems
    Tianqi Xiang, Ji Gu, Yicheng Wang, Yuehong Gao, Xin Zhang, and Chongjun Ouyang
    IEEE Wireless Communications Letters, Vol. 15, Pages 2694 - 2698, 2026

  7. On the Performance of Physical Layer Security for Continuous-Aperture Array (CAPA) Systems [Arxiv]
    Boqun Zhao, Chongjun Ouyang, Xingqi Zhang, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 25, Pages 15408 - 15424, 2026

  8. Multigroup Multicast Design for Pinching-Antenna Systems: Waveguide-Division or Waveguide-Multiplexing? [Arxiv]
    Shan Shan, Chongjun Ouyang, Yong Li, and Yuanwei Liu
    IEEE Transactions on Communications, Vol. 74, Pages 6228 - 6242, 2026

  9. Rate Region of ISAC for Pinching-Antenna Systems [Arxiv]
    Chongjun Ouyang, Zhaolin Wang, Yuanwei Liu, and Zhiguo Ding
    IEEE Transactions on Communications, Vol. 74, Pages 5849 - 5866, 2026

  10. MIMO-PASS: Uplink and Downlink Transmission via MIMO Pinching-Antenna Systems [Arxiv]
    Ali Bereyhi, Chongjun Ouyang, Saba Asaad, Zhiguo Ding, and H. Vincent Poor
    IEEE Transactions on Communications, Vol. 74, Pages 5701 - 5716, 2026

  11. Pinching-Antenna Systems (PASS): A Tutorial [Arxiv]
    Yuanwei Liu, Hao Jiang, Xiaoxia Xu, Zhaolin Wang, Jia Guo, Chongjun Ouyang, Xidong Mu, Zhiguo Ding, Arumugam Nallanathan, George K. Karagiannidis, and Robert Schober
    IEEE Transactions on Communications, Vol. 74, Pages 4881 - 4918, 2026

  12. Uplink and Downlink Communications in Segmented Waveguide-Enabled Pinching-Antenna Systems (SWANs) [Arxiv] [Code]
    Chongjun Ouyang, Hao Jiang, Zhaolin Wang, Yuanwei Liu, and Zhiguo Ding
    IEEE Transactions on Communications, Vol. 74, Pages 3688 – 3703, 2026

  13. Capacity Characterization of Pinching-Antenna Systems [Arxiv]
    Chongjun Ouyang, Zhaolin Wang, Yuanwei Liu, Hyundong Shin, and Zhiguo Ding
    IEEE Transactions on Wireless Communications, Vol. 25, Pages 10387 - 10404, 2026

  14. Transmission Power Optimization for Continuous-Aperture Array (CAPA)
    Tianwei Hou, Zhaoxing Zhu, Zhengyu Song, Chongjun Ouyang, Anna Li, Yuanwei Liu, and Arumugam Nallanathan
    IEEE Transactions on Communications, Vol. 74, Pages 2641 - 2656, 2026

  15. Pinching-Antenna Systems (PASS): Architecture Designs, Opportunities, and Outlook [Arxiv]
    Yuanwei Liu, Zhaolin Wang, Xidong Mu, Chongjun Ouyang, Xiaoxia Xu, and Zhiguo Ding
    IEEE Communications Magazine, Vol. 64, No. 1, Pages 190 - 196, January 2026

  16. Secure Beamforming for Continuous Aperture Array (CAPA) Systems [Arxiv]
    Mingjun Sun, Chongjun Ouyang, Zhaolin Wang, Shaochuan Wu, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 25, Pages 8922 - 8937, 2026

  17. Multiuser Beamforming for Pinching-Antenna Systems: An Element-wise Optimization Framework [Arxiv]
    Mingjun Sun, Chongjun Ouyang, Shaochuan Wu, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 25, Pages 6538 - 6552, 2026

  18. Exploiting Pinching-Antenna Systems in Multicast Communications [Arxiv]
    Shan Shan, Chongjun Ouyang, Yong Li, and Yuanwei Liu
    IEEE Transactions on Communications, Vol. 74, Pages 419 - 432, 2026

  19. Continuous-Aperture Array for Integrated Sensing and Communication: Rate-CRB Tradeoff
    Yue Zhang, Hangguan Shan, Chongjun Ouyang, Yuanwei Liu, Zhiguo Shi, Dong Lin, and Fen Hou
    IEEE Transactions on Wireless Communications, Vol. 25, Pages 4215 - 4230, 2026

  20. Downlink and Uplink ISAC in Continuous-Aperture Array (CAPA) Systems [Arxiv]
    Boqun Zhao, Chongjun Ouyang, Xingqi Zhang, Hyundong Shin, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 25, Pages 3592 - 3609, 2026

  21. Beamforming Design for Continuous Aperture Array (CAPA)-Based MIMO Systems [Arxiv]
    Zhaolin Wang, Chongjun Ouyang, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 25, Pages 2167 - 2182, 2026

  22. Linear Receive Beamforming for CAPA Systems [Arxiv]
    Chongjun Ouyang, Zhaolin Wang, Xingqi Zhang, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 25, Pages 1030 - 1047, 2026

  23. Modeling and Beamforming Optimization for Pinching-Antenna Systems [Arxiv]
    Zhaolin Wang, Chongjun Ouyang, Xidong Mu, Yuanwei Liu, and Zhiguo Ding
    IEEE Transactions on Communications, Vol. 73, No. 12, Pages 13904 - 13919, December 2025

  24. Secure Degrees of Freedom for Active RIS Aided Interference Channel with Confidential Messages
    Hongtao Luo, Qiang Wang, Chongjun Ouyang, Xiaofeng Tao, and Yuanwei Liu
    IEEE Transactions on Vehicular Technology, Vol. 14, No. 12, Pages 4122 - 4126, December 2025

  25. Pinching-Antenna Systems with LoS Blockages [Arxiv]
    Kaidi Wang, Chongjun Ouyang, Yuanwei Liu, and Zhiguo Ding
    IEEE Wireless Communications Letters, Vol. 14, No. 12, Pages 4122 - 4126, December 2025

  26. Uplink Sum Rate Maximization for Pinching Antenna-Assisted Multiuser MISO [Arxiv]
    Jiarui Zhang, Hao Xu, Chongjun Ouyang, Qiuyun Zou, and Hongwen Yang
    IEEE Communications Letters, Vol. 29, No. 12, Pages 2795 - 2799, December 2025

  27. Continuous-Aperture Array (CAPA)-Based Wireless Communications: Capacity Characterization [Arxiv]
    Boqun Zhao, Chongjun Ouyang, Xingqi Zhang, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 24, No. 12, Pages 10456 - 10473, December 2025

  28. Exploiting Continuous-Aperture Arrays in Integrated Sensing and Communication Systems
    Yue Zhang, Chongjun Ouyang, Hangguan Shan, Yuanwei Liu, Yong Zhou, and Zhiguo Shi
    IEEE Transactions on Wireless Communications, Vol. 24, No. 11, Pages 9539 - 9555, November 2025

  29. Rotatable and Movable Antenna-Enabled Near-Field Integrated Sensing and Communication [Arxiv]
    Yunan Sun, Hao Xu, Chongjun Ouyang, and Hongwen Yang
    IEEE Internet of Things Journal, Vol. 12, No. 21, Pages 45119 - 45132, November 2025

  30. Wireless Sensing via Pinching-Antenna Systems [Arxiv]
    Zhaolin Wang, Chongjun Ouyang, Yuanwei Liu, and Arumugam Nallanathan
    IEEE Wireless Communications Letters, Vol. 14, No. 11, Pages 3475 - 3479, November 2025

  31. Optimal Beamforming for Multi-User Continuous Aperture Array (CAPA) Systems [Arxiv]
    Zhaolin Wang, Chongjun Ouyang, and Yuanwei Liu
    IEEE Transactions on Communications, Vol. 73, No. 10, Pages 9207 - 9221, October 2025

  32. Diversity and Multiplexing for Continuous-Aperture Array (CAPA)-Based Communications [Arxiv]
    Chongjun Ouyang, Zhaolin Wang, Xingqi Zhang, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 24, No. 10, Pages 8662 - 8680, October 2025

  33. Performance Analysis of Physical Layer Security: From Far-Field to Near-Field [Arxiv]
    Boqun Zhao, Chongjun Ouyang, Xingqi Zhang, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 24, No. 9, Pages 7392 - 7408, September 2025

  34. Spectral Efficiency Maximization for DMA-enabled Multiuser MISO with Statistical CSI [Arxiv]
    Hao Xu, Boyu Ning, Chongjun Ouyang, and Hongwen Yang
    IEEE Internet of Things Journal, Vol. 12, No. 18, Pages 39130 - 39144, September 2025

  35. Performance Analysis of Holographic MIMO Based Integrated Sensing and Communications [Arxiv]
    Boqun Zhao, Chongjun Ouyang, Xingqi Zhang, and Yuanwei Liu
    IEEE Transactions on Communications, Vol. 73, No. 8, Pages 6655 - 6672, August 2025

  36. CAPA: Continuous-Aperture Arrays for Revolutionizing 6G Wireless Communications [Arxiv]
    Yuanwei Liu, Chongjun Ouyang, Zhaolin Wang, Jiaqi Xu, Xidong Mu, and Zhiguo Ding
    IEEE Wireless Communications, Vol. 32, No. 4, Pages 38 - 45, August 2025

  37. Near-Field Communications: A Comprehensive Survey [Arxiv]
    Yuanwei Liu, Chongjun Ouyang, Zhaolin Wang, Jiaqi Xu, Xidong Mu, and A. Lee Swindlehurst
    IEEE Communications Surveys & Tutorials, Vol. 27, No. 3, Pages 1687 - 1728, June 2025

  38. Secure Wireless Communications via Frequency Diverse Arrays [Arxiv]
    Zhenqiao Cheng, Chongjun Ouyang, and Xingqi Zhang
    IEEE Signal Processing Letters, Vol. 32, Pages 2319 - 2323, 2025

  39. Array Gain for Pinching-Antenna Systems (PASS) [Arxiv]
    Chongjun Ouyang, Zhaolin Wang, Yuanwei Liu, and Zhiguo Ding
    IEEE Communications Letters, Vol. 29, No. 6, Pages 1471 - 1475, June 2025

  40. Beamforming Optimization for Continuous Aperture Array (CAPA)-based Communications [Arxiv]
    Zhaolin Wang, Chongjun Ouyang, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 24, No. 6, Pages 5099 - 5113, June 2025

  41. Channel Capacity of Near-Field Line-of-Sight Multiuser Communications [Arxiv]
    Boqun Zhao, Chongjun Ouyang, Xingqi Zhang, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 24, No. 5, Pages 4392 - 4409, May 2025

  42. On the Secrecy Performance of MIMOME Keyhole Channels Aided with Artificial Noise
    Xujie Zang, Hao Xu, Chongjun Ouyang, and Hongwen Yang
    IEICE Transactions on Communications, Vol. E108–B, No. 5, Pages 631 - 639, May 2025

  43. Reconfigurable Intelligent Surfaces Assisted Multicast Transmissions With Finite-Alphabet Inputs
    Hao Xu, Shuwen Qi, Yunan Sun, Chongjun Ouyang, and Hongwen Yang
    IEEE Transactions on Vehicular Technology, Vol. 74, No. 4, Pages 6773 - 6778, April 2025

  44. STAR-RIS Aided Communication System with Movable Antennas Exploiting Statistical CSI
    Yunan Sun, Hao Xu, Boyu Ning, Lipeng Zhu, Chongjun Ouyang, and Hongwen Yang
    IEEE Communications Letters, Vol. 29, No. 4, Pages 824 - 828, April 2025

  45. Performance of UAV Networks With Multi-User Interference: A Meta Distribution Analysis
    Bingrong Wang, Tiankui Zhang, Chongjun Ouyang, and Yuanwei Liu
    IEEE Wireless Communications Letters, Vol. 14, No. 4, Pages 984 - 988, April 2025

  46. Sum-Rate Optimization for RIS-Aided Multiuser Communications With Movable Antennas [Arxiv]
    Yunan Sun, Hao Xu, Boyu Ning, Zhenqiao Cheng, Chongjun Ouyang, and Hongwen Yang
    IEEE Wireless Communications Letters, Vol. 14, No. 2, Pages 450 - 454, February 2025

  47. A Primer on Near-Field Communications for Next-Generation Multiple Access [Arxiv]
    Chongjun Ouyang, Zhaolin Wang, Yan Chen, Xidong Mu, and Peiying Zhu
    Proceedings of the IEEE, Vol. 112, No. 9, Pages 1527 - 1565, September 2024

  48. The Road to Next-Generation Multiple Access: A 50-Year Tutorial Review [Arxiv]
    Yuanwei Liu, Chongjun Ouyang, Zhiguo Ding, and Robert Schober
    Proceedings of the IEEE, Vol. 112, No. 9, Pages 1100 - 1148, September 2024

  49. RIS-Assisted Multi-Carrier Secret Key Generation in Static Environments
    Ji Gu, Chongjun Ouyang, Xin Zhang, and Hongwen Yang
    IEEE Wireless Communications Letters, Vol. 13, No. 10, Pages 2777 - 2781, October 2024

  50. On the Impact of Reactive Region on the Near-Field Channel Gain [Arxiv]
    Chongjun Ouyang, Zhaolin Wang, Boqun Zhao, Xingqi Zhang, and Yuanwei Liu
    IEEE Communications Letters, Vol. 28, No. 10, Pages 2417 - 2421, October 2024

  51. Downlink and Uplink NOMA-ISAC with Signal Alignment [Arxiv]
    Boqun Zhao, Chongjun Ouyang, Xingqi Zhang, and Yuanwei Liu
    IEEE Transactions on Wireless Communications, Vol. 23, No. 10, Pages 15322 - 15338, October 2024

  52. Analog Beamforming Enabled Multicasting: Finite-Alphabet Inputs and Statistical CSI [Arxiv]
    Yanjun Wu, Zhong Xie, Zhuochen Xie, Chongjun Ouyang, and Xuwen Liang
    IEEE Communications Letters, Vol. 28, No. 8, Pages 1785 - 1789, August 2024

  53. Active Simultaneously Transmitting and Reflecting Surface Assisted NOMA Networks [Arxiv]
    Xinwei Yue, Jin Xie, Chongjun Ouyang, Yuanwei Liu, Xia Shen, and Zhiguo Ding
    IEEE Transactions on Wireless Communications, Vol. 23, No. 8, Pages 9912 - 9926, August 2024

  54. Joint Antenna Selection and Beamforming for Massive MIMO-enabled Over-the-Air Federated Learning [Arxiv]
    Saba Asaad, Hina Tabassum, Chongjun Ouyang, and Ping Wang
    IEEE Transactions on Wireless Communications, Vol. 23, No. 8, Pages 8603 - 8618, August 2024

  55. Modeling and Analysis of Near-Field ISAC [Arxiv]
    Boqun Zhao, Chongjun Ouyang, Yuanwei Liu, Xingqi Zhang, and H. Vincent Poor
    IEEE Journal of Selected Topics in Signal Processing, Vol. 18, No. 4, Pages 678 - 693, May 2024

  56. Sum-Rate Maximization for Fluid Antenna Enabled Multiuser Communications [Arxiv]
    Zhenqiao Cheng, Nanxi Li, Jianchi Zhu, Xiaoming She, Chongjun Ouyang, and Peng Chen
    IEEE Communications Letters, Vol. 28, No. 5, Pages 1206 - 1210, May 2024

  57. RIS-Assisted mmWave MIMO Communications With Finite-Alphabet Inputs and Partial CSI
    Hao Xu, Chongjun Ouyang, and Hongwen Yang
    IEEE Wireless Communications Letters, Vol. 13, No. 5, Pages 1339 - 1343, May 2024

  58. Exploiting Active RIS in NOMA Networks With Hardware Impairments [Arxiv]
    Xinwei Yue, Meiqi Song, Chongjun Ouyang, Yuanwei Liu, Tian Li, and Tianwei Hou
    IEEE Transactions on Vehicular Technology, Vol. 73, No. 6, Pages 8207 - 8221, June 2024

  59. Revealing the Impact of Beamforming in ISAC [Arxiv]
    Chongjun Ouyang, Yuanwei Liu, and Xingqi Zhang
    IEEE Wireless Communications Letters, Vol. 13, No. 2, Pages 362 - 366, February 2024

  60. Near-Field Communications: A Tutorial Review [Arxiv]
    Yuanwei Liu, Zhaolin Wang, Jiaqi Xu, Chongjun Ouyang, Xidong Mu, and Robert Schober
    IEEE Open Journal of the Communications Society, Vol. 4, Pages 1999 - 2049, 2024

  61. Revealing the Impact of SIC in NOMA-ISAC [Arxiv]
    Chongjun Ouyang, Yuanwei Liu, and Hongwen Yang
    IEEE Wireless Communications Letters, Vol. 12, No. 10, Pages 1707 - 1711, October 2023

  62. Channel Hardening of IRS-Aided Multi-Antenna Systems: How Should IRSs Scale? [Arxiv]
    Ali Bereyhi, Saba Asaad, Chongjun Ouyang, Ralf R. Müller, Rafael F. Schaefer, and H. Vincent Poor
    IEEE Journal on Selected Areas in Communications, Vol. 41, No. 8, Pages 2321 - 2335, August 2023

  63. Integrated Sensing and Communications: A Mutual Information-Based Framework [Arxiv]
    Chongjun Ouyang, Yuanwei Liu, Hongwen Yang, and Naofal Al-Dhahir
    IEEE Communications Magazine, Vol. 61, No. 5, Pages 26 - 32, May 2023

  64. RIS-Assisted Secure Communications: Low-Complexity Beamforming Design
    Zhenqiao Cheng, Nanxi Li, Jianchi Zhu, Xiaoming She, Chongjun Ouyang, and Peng Chen
    IEEE Wireless Communications Letters, Vol. 12, No. 6, Pages 1012 - 1016, June 2023

  65. IRS-Aided Communications With Finite-Alphabet Inputs: Analysis and Design
    Hao Xu, Chongjun Ouyang, and Hongwen Yang
    IEEE Communications Letters, Vol. 27, No. 4, Pages 1110 - 1114, April 2023

  66. MIMO-ISAC: Performance Analysis and Rate Region Characterization [Arxiv] [Code]
    Chongjun Ouyang, Yuanwei Liu, and Hongwen Yang
    IEEE Wireless Communications Letters, Vol. 12, No. 4, Pages 669 - 673, April 2023

  67. On the Ergodic Mutual Information of Keyhole MIMO Channels With Finite-Alphabet Inputs [Arxiv]
    Chongjun Ouyang, Ali Bereyhi, Saba Asaad, Ralf R. Müller, Julian Cheng, and Hongwen Yang
    IEEE Communications Letters, Vol. 27, No. 1, Pages 90 - 94, January 2023

  68. Antenna Selection for IRS-Aided MU-MIMO
    Hao Xu, Chongjun Ouyang, and Hongwen Yang
    IEEE Communications Letters, Vol. 26, No. 11, Pages 2690 - 2694, November 2022

  69. Performance of Downlink and Uplink Integrated Sensing and Communications (ISAC) Systems [Arxiv] [Code]
    Chongjun Ouyang, Yuanwei Liu, and Hongwen Yang
    IEEE Wireless Communications Letters, Vol. 11, No. 9, Pages 1850 - 1854, September 2022

  70. On the Performance of Uplink ISAC Systems [Arxiv] [Code]
    Chongjun Ouyang, Yuanwei Liu, and Hongwen Yang
    IEEE Communications Letters, Vol. 26, No. 8, Pages 1769 - 1773, August 2022

  71. Joint RF Precoding and Beam Selection Design for Uplink mmWave Beamspace MIMO Systems
    Zhenqiao Cheng, Zaixue Wei, Chongjun Ouyang, and Hongwen Yang
    IEEE Communications Letters, Vol. 26, No. 8, Pages 1833 - 1837, August 2022

  72. Physical Layer Security Over Mixture Gamma Distributed Fading Channels With Discrete Inputs: A Unified and General Analytical Framework
    Chongjun Ouyang, Sheng Wu, Chunxiao Jiang, Julian Cheng, and Hongwen Yang
    IEEE Communications Letters, Vol. 25, No. 2, Pages 412 - 416, February 2021

  73. Secrecy Performance for Finite-Alphabet Inputs Over Fluctuating Two-Ray Channels in FDA Communications
    Chongjun Ouyang, Sheng Wu, Chunxiao Jiang, Derrick Wing Kwan Ng, and Hongwen Yang
    IEEE Wireless Communications Letters, Vol. 9, No. 10, Pages 1638 - 1642, October 2020

  74. Security Enhancement via Antenna Selection in MIMOME Channels With Discrete Inputs
    Chongjun Ouyang, Sheng Wu, Chunxiao Jiang, Julian Cheng, Ailing Xiao, and Hongwen Yang
    IEEE Transactions on Communications, Vol. 68, No. 8, Pages 5041 - 5055, August 2020

  75. Receive Antenna Selection Under Discrete Inputs: Approximation and Applications
    Chongjun Ouyang, Sheng Wu, Chunxiao Jiang, Derrick Wing Kwan Ng, and Hongwen Yang
    IEEE Transactions on Communications, Vol. 68, No. 4, Pages 2634 - 2647, April 2020

  76. Approximating Ergodic Mutual Information for Mixture Gamma Fading Channels With Discrete Inputs
    Chongjun Ouyang, Sheng Wu, Chunxiao Jiang, Julian Cheng, and Hongwen Yang
    IEEE Communications Letters, Vol. 24, No. 4, Pages 734 - 738, April 2020

  77. A Secure Receive Spatial Modulation Scheme Based on Random Precoding
    Lu Zhang, Mingyang Sun, Zeliang Ou, Chongjun Ouyang, and Hongwen Yang
    IEEE Access, Vol. 7, Pages 122367 - 122377, 2019