75 citations · 167 across the 35 of their papers we have counts for
5 papers · 1 filter
Optimizing Movable Antennas in Wideband Multi-User MIMO With Hardware Impairments
Amna Irshad, Emil Björnson, Alva Kosasih +1
Movable antennas represent an emerging field in telecommunication research and a potential approach to achieving higher data rates in multiple-input multiple-output (MIMO) communic…
Near-Field Beamfocusing, Localization, and Channel Estimation with Modular Linear Arrays
Alva Kosasih, Özlem Tuğfe Demir, Emil Björnson
This paper investigates how near-field beamfocusing can be achieved using a modular linear array (MLA), composed of multiple widely spaced uniform linear arrays (ULAs). The MLA arc…
Limited-Resolution Hybrid Analog-Digital Precoding Design Using MIMO Detection Methods
Parisa Ramezani, Alva Kosasih, Emil Björnson
While fully-digital precoding achieves superior performance in massive MIMO systems, it comes with significant drawbacks in terms of computational complexity and power consumption,…
Pre-Optimized Irregular Arrays versus Moveable Antennas in Multi-User MIMO Systems
Amna Irshad, Alva Kosasih, Vitaly Petrov +1
Massive multiple-input multiple-output (MIMO) systems exploit the spatial diversity achieved with an array of many antennas to perform spatial multiplexing of many users. Similar p…
A Novel Hybrid Precoder With Low-Resolution Phase Shifters and Fronthaul Capacity Limitation
Parisa Ramezani, Alva Kosasih, Emil Björnson
In massive MIMO systems, fully digital precoding offers high performance but has significant implementation complexity and energy consumption, particularly at millimeter frequencie…