Experimentally realized physical-model-based frugal wave control in metasurface-programmable complex media.

ABSTRACT: Metasurface-programmable radio environments are considered a key ingredient of next-generation wireless networks. Yet, identifying a metasurface configuration that yields a desired wireless functionality in an unknown complex environment was so far only achieved with closed-loop iterative feedback schemes. Here, we introduce open-loop wave control in metasurface-programmable complex media by estimating the parameters of a compact physics-based forward model. Our experiments demonstrate orders-of-magnitude advantages over deep-learning-based digital-twin benchmarks in terms of accuracy, compactness and required calibration examples. Strikingly, our parameter estimation also works without phase information and without providing measurements for all considered scattering coefficients. These u

SUBMITTER: Sol J 

PROVIDER: S-EPMC10987616 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature