RIS CUTTING EDGE FOURM
Eliminating Blind Spots from Wireless Network by Metasurface: A Blind Approach
以“盲”治“盲”：无需超表面信道估计的盲区消除方案
Eliminating Blind Spots from Wireless Network by Metasurface: A Blind Approach
- RISTA CUTTING EDGE FORUM Season 5 Session 7
- Time：8pm-9pm, July 20th, 2026.
- Speaker guest：Prof.Kaiming Shen
- Chair guest：Prof.Hei Victor Cheng
Eliminating wireless blind spots via metasurfaces (MTSs) requires jointly optimizing their physical placement and phase shifts. Conventional approaches depend on explicit channel estimation, which introduces prohibitive overhead and limits real-world viability. To address this challenge, we present RFZero, a channel-state-information (CSI)-free deployment framework. By extracting macro-environmental features from visual data, RFZero guides MTS placement without prior channel knowledge, utilizing reference signal received power (RSRP) feedback for dynamic phase adjustment. Furthermore, its base-station-independent operation enables seamless plug-and-play deployment. Comprehensive field tests demonstrate that RFZero successfully eliminates signal blind spots in a 100 m^2 indoor space using merely two 1.5 m* 0.9 m MTS panels.
Kaiming Shen received the B.Eng. degree in information security and the B.Sc. degree in mathematics from Shanghai Jiao Tong University, China, in 2011, and the Ph.D. degree in electrical and computer engineering from the University of Toronto, Canada, in 2020. Since 2020, he has been a Tenure-Track Assistant Professor with the School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, China. His research interests include optimization, signal processing, and information theory. He received the IEEE Signal Processing Society Young Author Best Paper Award in 2021, the University Teaching Achievement Award in 2023, the Frontiers of Science Award in 2024, and the Chinese Information Theory Society Young Researcher Award in 2025. He is a member of the Signal Processing for Communications and Networking (SPCOM) Technical Committee of the IEEE Signal Processing Society, and serves as an Editor for IEEE Transactions on Wireless Communications.
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