… problem in practical FDD massive MIMO systems with a large … feedback overheads in massive
MIMO systems by exploiting … sparse structure in multi-user (MU) massive MIMO channels. …

… has not been fully understood, especially in multi-user systems. In this article, we directly …
-modulus constraints in a multi-user massive multiple-input multiple-output (MIMO) system. An …

… We consider a multi-user massive MIMO system where the BS of a cell simultaneously
serves K scheduled users. The BS is equipped with R RF chains, each of which feeds its …

… In this paper, we propose an enhanced CSI acquisition scheme for multi-user massive
MIMO systems operating on FDD mode. Compared to the conventional CSI acquisition scheme …

… in massive multiple input multiple output (MIMO) systems. However, due to a large number of
antennas in massive MIMO … duplex (FDD) based multi-user massive MIMO system. A 2-step …

… TAS for multi-user massive MIMO systems has not been sufficiently investigated and it is
challenging to implement such evolutionary TAS algorithm for multi-user massive MIMO system. …

… UEs in reducing the multi-user interference and the training … and feedback for FDD multi-user
massive MIMO systems,” … for FDD massive MIMO,” IEEE Trans. Commun., vol. 64, no. …

In this paper, superimposed pilot based communication strategies are investigated for a time-division
duplex (TDD)-based massive Full-Dimension MIMO (FD-MIMO) network jointly …

… SYSTEM MODEL This paper considers a multi-user (MU) distributed massive MIMO
system. There are M remote antenna units (RAUs) equipped with N antennas and K single-antenna …

To enable next-generation mmWave cellular, it is vital to design high-performance precoding
schemes for wideband multi-user (wMU) mmWave massive MIMO (mMIMO). As existing …