3 papers
eess.SP2023
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…
eess.SP2023
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…
cs.IT2022
Maximum Likelihood Channel Estimation for RIS-Aided Communications With LOS Channels
Emil Björnson, Parisa Ramezani
A reconfigurable intelligent surface (RIS) reflects incoming signals in different ways depending on the phase-shift pattern assigned to its elements. The most promising use case is…