8 papers
ISTA-Based Joint Dictionary Learning and Channel Estimation for XL-MIMO Systems
Arttu Arjas, Italo Atzeni
Channel estimation in extra-large multiple-input multiple-output systems is challenging due to near-field propagation, where the array response depends on both the angle and distan…
Data Detection for Massive MIMO Systems with 1-Bit Quantized Dithered Linear Precoding
Amin Radbord, Italo Atzeni, Antti Tölli
The power consumption of the analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) in fully digital massive multiple-input multiple-output (MIMO) systems moti…
Cross-Predictive Sparse Bayesian Learning with Application to XL-MIMO Channel Estimation
Arttu Arjas, Italo Atzeni
Accurate channel estimation is a key requirement in extremely large-scale multiple-input multiple-output (XL-MIMO) systems. Sparse Bayesian learning (SBL) is a well-established fra…
Blind Channel Estimation and Data Detection for Near-Field XL-MIMO Systems
Maral Safari, Italo Atzeni
Future wireless systems are expected to employ extremely large-scale multiple-input multiple-output (XL-MIMO) arrays at high carrier frequencies, where near-field propagation makes…
Enforcing Statistical Orthogonality in Massive MIMO Systems via Covariance Shaping
Placido Mursia, Italo Atzeni, Laura Cottatellucci +1
This paper tackles the problem of downlink data transmission in massive multiple-input multiple-output (MIMO) systems where user equipments (UEs) exhibit high spatial correlation a…
D2D-Aided Multi-Antenna Multicasting under Generalized CSIT
Placido Mursia, Italo Atzeni, Mari Kobayashi +1
Multicasting, where a base station (BS) wishes to convey the same message to several user equipments (UEs), represents a common yet highly challenging wireless scenario. In fact, g…
D2D-Aided Multi-Antenna Multicasting
Placido Mursia, Italo Atzeni, David Gesbert +1
Multicast services, whereby a common valuable message needs to reach a whole population of user equipments (UEs), are gaining attention on account of new applications such as vehic…
Cooperative MIMO Precoding with Distributed CSI: A Hierarchical Approach
Italo Atzeni, David Gesbert
The problem of network multiple-input multiple-output precoding under distributed channel state information is a notoriously challenging question, for which optimal solutions with…