Superimposed pilot transmission in cell-free massive MIMO with non-ideal RF responses

Y Zhang, H Zhao, W Xia, F Gao… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this paper, the performance of cell-free massive multiple-input multiple-output (CF-
mMIMO) systems under the transceiver non-ideal radio-frequency responses (NI-RF-RPs) …

Cell-free massive MIMO with normalized conjugate beamforming and channel non-reciprocities

Y Zhang, W Xia, Y Zhu, G Zheng… - 2021 13th International …, 2021 - ieeexplore.ieee.org
This paper focuses on a generalized downlink cell-free massive multiple-input multiple-
output (CF-mMIMO) system with normalized conjugate beamforming (NCB) and channel …

Performance of Mixed Channel Cell-Free Systems

RM Duarte, MS de Alencar… - 2020 International …, 2020 - ieeexplore.ieee.org
The pursuit of improving the performance of communications systems has, in recent years,
led to the popularization of the concept of cell-free system. In this system, division of space in …