16 citations · 30 across the 11 of their papers we have counts for
12 papers
User-Centric Clustering Under Fairness Scheduling in Cell-Free Massive MIMO
Fabian Göttsch, Noboru Osawa, Yoshiaki Amano +3
We consider fairness scheduling in a user-centric cell-free massive MIMO network, where remote radio units, each with antennas, serve user equipmen…
Fairness Scheduling in Dense User-Centric Cell-Free Massive MIMO Networks
Fabian Göttsch, Noboru Osawa, Takeo Ohseki +4
We consider a user-centric scalable cell-free massive MIMO network with a total of distributed remote radio unit antennas serving user equipments (UEs). Many works in the…
Overloaded Pilot Assignment with Pilot Decontamination for Cell-Free Systems
Noboru Osawa, Fabian Göttsch, Issei Kanno +4
The pilot contamination in cell-free massive multiple-input-multiple-output (CF-mMIMO) must be addressed for accommodating a large number of users. In previous works, we have inves…
Robust PCA for Subspace Estimation in User-Centric Cell-Free Wireless Networks
Fabian Göttsch, Noboru Osawa, Takeo Ohseki +2
We consider a scalable user-centric cell-free massive MIMO network with distributed remote radio units (RUs), enabling macrodiversity and joint processing. Due to the limited uplin…
Optimal User Load and Energy Efficiency in User-Centric Cell-Free Wireless Networks
Fabian Göttsch, Noboru Osawa, Takeo Ohseki +2
Cell-free massive MIMO is a variant of multiuser MIMO and massive MIMO, in which the total number of antennas is distributed among the remote radio units (RUs) in the syst…
Subspace-Based Pilot Decontamination in User-Centric Scalable Cell-Free Wireless Networks
Fabian Göttsch, Noboru Osawa, Takeo Ohseki +2
We consider a cell-free wireless system operated in Time Division Duplex (TDD) mode with user-centric clusters of remote radio units (RUs). Since the uplink pilot dimensions per ch…
Uplink-Downlink Duality and Precoding Strategies with Partial CSI in Cell-Free Wireless Networks
Fabian Göttsch, Noboru Osawa, Takeo Ohseki +2
We consider a scalable user-centric wireless network with dynamic cluster formation as defined by Björnsson and Sanguinetti. After having shown the importance of dominant channel s…
Energy Efficiency of Uplink Cell-Free Massive MIMO With Transmit Power Control in Measured Propagation Channel
Thomas Choi, Masaaki Ito, Issei Kanno +5
Cell-free massive MIMO (CF-mMIMO) provides wireless connectivity for a large number of user equipments (UEs) using access points (APs) distributed across a wide area with high spec…
Evaluation on Energy Efficiency of UE in UL Cell-Free Massive MIMO System With Power Control Methods
Masaaki Ito, Issei Kanno, Takeo Ohseki +4
Cell-free massive multiple-input multiple-output (CF mMIMO) systems are expected to provide faster and more robust connections to user equipments (UEs) by cooperation of a massive…
The Impact of Subspace-Based Pilot Decontamination in User-Centric Scalable Cell-Free Wireless Networks
Fabian Göttsch, Noboru Osawa, Takeo Ohseki +2
We consider a scalable user-centric wireless network with dynamic cluster formation as defined by Björnsson and Sanguinetti. Several options for scalable uplink (UL) processing are…
Uplink Energy Efficiency of Cell-Free Massive MIMO With Transmit Power Control in Measured Propagation Channels
Thomas Choi, Masaaki Ito, Issei Kanno +3
Cell-free massive MIMO (CF-mMIMO) is expected to provide reliable wireless services for a large number of user equipments (UEs) using access points (APs) distributed across a wide…
Using a Drone Sounder to Measure Channels for Cell-Free Massive MIMO Systems
Thomas Choi, Jorge Gomez-Ponce, Colton Bullard +5
Measurements of the propagation channel form the basis of all realistic system performance evaluations, as foundation of statistical channel models or to verify ray tracing. This i…