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Author

Pinjun Zheng

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Preprint Sep 2026

Exploiting Mutual Coupling Structure for Channel Estimation of Active RIS-Assisted Links

Accurate channel modeling and estimation of active reconfigurable intelligent surface (RIS)-assisted links with densely integrated elements are essential to fully unleashing this technology's potential. This work adopts a physically consistent model incorporating mutual coupling (MC) effects, modeled via scattering par...

Simon Tarboush, Pin-Jun Zheng, Hadi Sarieddeen et al. · 0 citations
#graph neural networks Open access Aug 2026

Fast Tri-Hybrid Beamforming via Deep Unfolding

Tri-hybrid multiple-input multiple-output architectures have recently emerged as a promising enabler for next-generation wireless systems, as they potentially provide enhanced design flexibility without a proportional increase in hardware cost or power consumption. However, the resulting triple-domain coupling renders...

Pin-Jun Zheng, Md. Jahangir Hossain, Anas Chaaban · 1 citation

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