CSR webinar - 24th April 2026
When: Friday, April 24, 2026, 2:00 PM - 3:00 PM
Where: Graduate Centre: GC204, Mile End
Title: When ISAC meets CAPA: a new paradigm for next generation wireless communications
Abstract: Continuous aperture array (CAPA) is a brand new paradigm for next generation wireless communications. In contrast to conventional spatially discrete antenna arrays, CAPAs has a continuous electromagnetic aperture and exploit the full spatial degrees of freedom. In this talk, we mainly discuss CAPA-aided integrated sensing and communication (ISAC) waveform design framework, including CAPA-based beampattern, waveform design challenges and solutions, and the insights from the waveform structure. Specifically, we propose a ISAC waveform design scheme sensing beampattern mismatch and multi-user interference suppression. In this scheme, the directional beampattern of CAPA is first derived based on Green’s function. Then, we introduce the functional programming of the waveform design, and analytically derive an optimal solution with Lagrangian-transformation and calculus-of-variations method. After obtaining the optimal waveform structure, some insights is discussed. Finally, numerical results validate the effectiveness of the proposed system and waveform design, demonstrating that CAPA can achieve significant performance gains.
Bio: Junjie Ye earned B.Eng. degree (Hons.) in the college of Electronics and Information Engineering of Shenzhen University, Shenzhen, China, in 2021. He is currently pursuing a Ph.D. degree in information and communication engineering in Shenzhen University. From 2025 to 2026, he is also a visiting student at the Queen Mary University of London, London, U.K. His research interests include integrated sensing and communications, metasurface, beamforming optimization and array signal processing.