In this paper, we consider user selection and downlink precoding for an over-loaded single-
cell massive multiple-input multiple-output (MIMO) system in frequency division duplexing …

We propose a novel randomized channel sparsifying hybrid precoding (RCSHP) design to
reduce the signaling overhead of channel estimation and the hardware cost and power …

We study the problem of common Downlink (DL) channel training and Uplink (UL) closed-
loop feedback for dual-polarized FDD massive MIMO systems. As is well-known, due to the …

We consider a single-cell massive multi-input multi-output (MIMO) network with uniform
planar array (UPA) antennas equipped at the base station that serves a number of single …

Interest in massive multiple-input multiple-output (MIMO) systems is growing because of
their potential ability to improve spectral and energy efficiency. Most prior work on massive …

Downlink massive multiple-input multiple-output (MIMO) precoding algorithms in frequency
division duplexing (FDD) systems rely on accurate channel state information (CSI) feedback …

In this paper, we propose a novel method for efficient implementation of a massive Multiple-
Input Multiple-Output (massive MIMO) system with Frequency Division Duplexing (FDD) …

To fully reap the benefits of massive multiple-input multiple-output hybrid analog and digital
precoding in frequency division duplexing single-cell systems, a two-stage precoder is …

In this paper, we propose a new, robust near-optimal mutual information combined zero-
forcing per-group precoding (ZF-PGP) method for finite alphabets with imperfect channel …

Massive MIMO systems achieve high sum spectral efficiency by simultaneously serving
large numbers of users. In time division duplexing systems, however, the reuse of uplink …