Wireless innovations Next-generation
Online Workshop(WiNOW)
3-6 November, 2025 // Virtual
Haifan Yin
Huazhong University of Science and Technology
Haifan Yin received the B.Sc. degree in electrical and electronic engineering and the M.Sc. degree in electronics and information engineering from the Huazhong University of Science and Technology, Wuhan, China, in 2009 and 2012, respectively, and the Ph.D. degree from T´el´ecom ParisTech in 2015. From 2009 to 2011, he was a Research and Development Engineer with the Wuhan National Laboratory for Optoelectronics, Wuhan, working on the implementation of TD-LTE systems. From 2016 to 2017, he was a DSP Engineer at Sequans Communications (IoT chipmaker), Paris, France. From 2017 to 2019, he was a Senior Research Engineer working on 5G standardization at Shanghai Huawei Technologies Company Ltd., where he has made substantial contributions to 5G standards, particularly the 5G codebooks. Since May 2019, he has been a Full Professor with the School of Electronic Information and Communications, Huazhong University of Science and Technology. His current research interests include 5G and 6G networks, signal processing, ma chine learning, and massive MIMO systems. He was the National Champion of 2021 High Potential Innovation Prize awarded by the Chinese Academy of Engineering, a recipient of the China Youth May Fourth Medal (the top honor for young Chinese), and a recipient of the 2024 Stephen O. Rice Prize.
Talk Title: Exploring the Future of MIMO: holographic interference surface, superdirective array, and RIS
This talk covers three topics related to multiple antenna technologies.
(1) Holographic interference surface (HIS).
Inspired by optical holography, we propose a channel sensing architecture called HIS. It relies on interfering the object waves with a pre-designed reference wave, and greatly reduces the hardware complexity and requires less time-frequency resources for channel estimation. A prototype of HIS is also developed.
(2) Superdirective antenna arrays.
When the antenna spacing is made very small, the beamforming gain of an M-element linear array has the potential to achieve M^2. In this talk, we propose a dual-coupling based beamforming method to realize the so-called superdirectivity. A prototype is developed to validate the proposed method.
(3) Reconfigurable Intelligent Surface (RIS).
Several prototypes of RIS have been developed by our group. We will show the hardware and a dynamic beamforming algorithm, as well as some experimental results in field trials. Finally, we will talk about the commercialization attempts of our RIS products.