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About this paper
Hongning Ruan, Zhaoyang Zhang, Zirui Chen, Ziqing Xing, Zhaohui Yang, Mérouane Debbah
The paper presents geometry-aided channel deduction (GCD), combining sparse pilot measurements with approximate environmental geometry to reconstruct a MIMO-OFDM channel. Ray-traced path structure supplies a prompt, while live estimates correct unknown effects. In a noise-free San Francisco simulation, mGCDNet reached median NMSE of −12.90 dB versus −9.18 dB for mPCMixer at sparse pilots, but results varied and lacked live-network validation.
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