Search Results for author: Nemanja Stefan Perović

Found 4 papers, 0 papers with code

Intelligent Omni-Surfaces (IOSs) for the MIMO Broadcast Channel

no code implementations27 Jun 2022 Abdelhamed Mohamed, Nemanja Stefan Perović, Marco Di Renzo

In this paper, we consider intelligent omni-surfaces (IOSs), which are capable of simultaneously reflecting and refracting electromagnetic waves.

Joint CFO and Channel Estimation for RIS-aided Multi-user Massive MIMO Systems

no code implementations21 Jan 2022 Sumin Jeong, Arman Farhang, Nemanja Stefan Perović, Mark F. Flanagan

This becomes more critical in RIS-aided communications, as even a small channel estimation error leads to a significant performance loss.

Low-Complexity Joint CFO and Channel Estimation for RIS-aided OFDM Systems

no code implementations27 Jan 2021 Sumin Jeong, Arman Farhang, Nemanja Stefan Perović, Mark Flanagan

Accurate channel estimation is essential for achieving the performance gains offered by reconfigurable intelligent surface (RIS)-aided wireless communications.

Optimization of RIS-aided MIMO Systems via the Cutoff Rate

no code implementations9 Dec 2020 Nemanja Stefan Perović, Le-Nam Tran, Marco Di Renzo, Mark F. Flanagan

The main difficulty concerning optimizing the mutual information (MI) in reconfigurable intelligent surface (RIS)-aided communication systems with discrete signaling is the inability to formulate this optimization problem in an analytically tractable manner.

Information Theory Information Theory

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