Impact of channel non-reciprocity in cell-free massive MIMO

JM Palacios, O Raeesi, A Gokceoglu… - IEEE Wireless …, 2019 - ieeexplore.ieee.org
channel non-reciprocity (NRC) and imperfect channel state information in CF massive MIMO
… including a physically inspired non-reciprocal channel model where the NRC variables vary …

Estimation and mitigation of channel non-reciprocity in massive MIMO

O Raeesi, A Gokceoglu… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
… is not aware of such channel non-reciprocity (NRC), system … general TDD-based massive
MIMO system where frequency-… BS large-antenna system all coexist and induce channel NRC. …

Performance analysis of multi-user massive MIMO downlink under channel non-reciprocity and imperfect CSI

O Raeesi, A Gokceoglu, Y Zou… - IEEE Transactions …, 2018 - ieeexplore.ieee.org
… Closed-form performance analysis of TDD-based linearly precoded massive MIMO DL system
under channel nonreciprocity and imperfect CSI was carried out in this paper. The derived …

Closed-form analysis of channel non-reciprocity due to transceiver and antenna coupling mismatches in multi-user massive MIMO network

O Raeesi, Y Zou, A Tölli… - 2014 IEEE Globecom …, 2014 - ieeexplore.ieee.org
… This paper studied the impact of channel non-reciprocity due to transceiver FR and
antenna mutual coupling mismatches on the performance of multi-user massive MIMO DL …

Modeling and estimation of massive MIMO channel non-reciprocity: Sparsity-aided approach

O Raeesi, A Gokceoglu, PC Sofotasios… - 2017 25th European …, 2017 - ieeexplore.ieee.org
… to estimate the channel non-reciprocity due to BS side imperfections in multi-user massive
MIMO systems. As novel contributions, we consider a massive MIMO system model which …

A Non-Reciprocal Channel Model for THz Asymmetric Massive MIMO Systems

K Zhang, Y Zhang, CX Wang, X Wu… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
… In this section, we derive key channel statistics that characterize the non-reciprocity and
non-stationarities of the proposed model, including correlation functions of UL and DL and in …

Distributed massive MIMO systems with non-reciprocal channels: Impacts and robust beamforming

A Minasian, S Shahbazpanahi… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
… In canonical massive MIMO systems a large number of … , a distributed massive MIMO system
(DM-MIMO), wherein a largechannel non-reciprocity on the performance of MU massive

Achievable spectral efficiency of hybrid beamforming massive MIMO systems with quantized phase shifters, channel non-reciprocity and estimation errors

Y Chen, X Wen, Z Lu - IEEE Access, 2020 - ieeexplore.ieee.org
massive multiple-input multiple-output (MIMO) system … ), channel non-reciprocity and
channel estimation errors on the achievable spectral efficiency (SE) of the considered system. We …

A gradual method for channel non-reciprocity calibration in cell-free massive MIMO

NI Kim, CW Yu, SE Hong, JH Na… - IEEE Communications …, 2022 - ieeexplore.ieee.org
… gradually calibrating channel non-reciprocity in an ultra-dense cell-free massive multiple-input
multiple-output (MIMO) system. Many studies assume perfect channel reciprocity in time …

Impact and calibration of nonlinear reciprocity mismatch in massive MIMO systems

R Nie, L Chen, N Zhao, Y Chen… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
… We consider a multi-user massive MIMO system consisting of K single-antenna UEs and a
BS equipped with M antennas, as illustrated in Fig. 1, where M and K are large. The transmit …