2 citations · 2 across the 6 of their papers we have counts for
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MSE Minimization in RIS-Aided MU-MIMO with Discrete Phase Shifts and Fronthaul Quantization
Parisa Ramezani, Yasaman Khorsandmanesh, Emil Björnson
In this paper, we consider a downlink multi-user multiple-input multiple-output (MU-MIMO) communication assisted by a reconfigurable intelligent surface (RIS) and study the precodi…
Localization in Massive MIMO Networks: From Near-Field to Far-Field
Parisa Ramezani, Özlem Tuğfe Demir, Emil Björnson
Source localization is the process of estimating the location of signal sources based on the signals received at different antennas of an antenna array. It has diverse applications…
Dual-Polarized Reconfigurable Intelligent Surface Assisted Broad Beamforming
Parisa Ramezani, Maksym A. Girnyk, Emil Björnson
A reconfigurable intelligent surface (RIS) consists of a large number of low-cost elements that can control the propagation environment seen from a transmitter by intelligently app…
A New Channel Subspace Characterization for Channel Estimation in RIS-Aided Communications
Mehdi Haghshenas, Parisa Ramezani, Maurizio Magarini +1
A reconfigurable intelligent surface (RIS) is a holographic MIMO surface composed of a large number of passive elements that can induce adjustable phase shifts to the impinging wav…
Efficient LOS Channel Estimation for RIS-Aided Communications Under Non-Stationary Mobility
Mehdi Haghshenas, Parisa Ramezani, Emil Björnson
Reconfigurable intelligent surface (RIS) is a newly-emerged technology that, with its unique features, is considered to be a game changer for future wireless networks. Channel esti…