Downlink training in cell-free massive MIMO: A blessing in disguise

G Interdonato, HQ Ngo, P Frenger… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
… performance provided by cell-free Massive MIMO with downlink training with the case when
the … • We investigate the downlink training gain for different pilot training durations, shadow …

On the amount of downlink training in correlated massive MIMO channels

S Bazzi, W Xu - IEEE Transactions on Signal Processing, 2018 - ieeexplore.ieee.org
… Xu, “Downlink training sequence design for FDD multiuser massive MIMO systems,” IEEE …
Ravindran, “Multiuser MIMO achievable rates with downlink training and channel state …

Downlink training sequence design for FDD multiuser massive MIMO systems

S Bazzi, W Xu - IEEE Transactions on Signal Processing, 2017 - ieeexplore.ieee.org
… In this paper, we derived DL training sequences in FDD multiuser massive MIMO systems
that exploit users’ spatial correlations. With optimized designs, a number of training sequences …

Secure massive MIMO with the artificial noise-aided downlink training

NP Nguyen, HQ Ngo, TQ Duong… - IEEE Journal on …, 2018 - ieeexplore.ieee.org
… In this paper, we consider a massive MIMO downlink in the presence of a multiple-antenna …
ie, downlink training phase AN-aiding scheme and both phases (downlink training phase and …

Downlink training techniques for FDD massive MIMO systems: Open-loop and closed-loop training with memory

J Choi, DJ Love, P Bidigare - IEEE Journal of Selected Topics …, 2014 - ieeexplore.ieee.org
… for CSI estimation in TDD massive MIMO) [7], which might cause … on a downlink training
framework for FDD massive MIMO … the optimal training signals for open-loop/single-shot training

No downlink pilots are needed in TDD massive MIMO

HQ Ngo, EG Larsson - IEEE Transactions on Wireless …, 2017 - ieeexplore.ieee.org
… Inspired by the above discussion, in this paper, we consider the Massive MIMO downlink
with TDD operation. The BS acquires channel state information through the reception of uplink …

Directional training for FDD massive MIMO

X Zhang, L Zhong, A Sabharwal - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
… In FDD, channel reciprocity does not hold, which in turn has made FDD Massive MIMO
Massive MIMO CSIT acquisition for downlink beamforming. Recognizing that full downlink training

Deep learning-based downlink channel prediction for FDD massive MIMO system

Y Yang, F Gao, GY Li, M Jian - IEEE Communications Letters, 2019 - ieeexplore.ieee.org
… 2) We propose a SCNet for downlink CSI prediction in FDD massive MIMO systems, which
is applicable to … Then, we discuss how to train and deploy it in massive MIMO systems. …

Multicell multiuser massive MIMO transmission with downlink training and pilot contamination precoding

J Zuo, J Zhang, C Yuen, W Jiang… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
… performance of multi-cell massive MIMO TDD systems. The … the beamforming training scheme
in multicell massive MIMO … optimal lengths of uplink and downlink training pilots, instead of …

Massive MU-MIMO downlink TDD systems with linear precoding and downlink pilots

HQ Ngo, EG Larsson… - 2013 51st Annual Allerton …, 2013 - ieeexplore.ieee.org
… amount of the coherence interval on downlink training. In the next section, we will provide
more detail about this proposed downlink beamforming training scheme to estimate akk. With …