IEEE Keynote Speaker Series - Realistic Propagation Models For Ris-Enabled Communication Channels

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Reconfigurable intelligent surfaces (RISs) can redirect incident waves to selected directions in a wireless communication channel, to improve coverage bypassing obstructing objects. This presentation introduces a hybrid approach that enables the accurate analysis of RIS-enabled communication channels in rich scattering, realistic environments. Our hybrid method combines the full-wave analysis of the RIS as a diffuse scatterer, with the computational efficiency of ray-tracing to obtain accurate field predictions in the near and far field region of the RIS at multiple states, accounting for multipath propagation paths towards and from the RIS. A convolutional neural network is presented to efficiently compute scattered fields from RISs. We present validation studies based on reference full-wave simulations and an extensive indoor measurement campaign. --- Event Details: (link below)