In this paper, we study the joint pilot assignment and resource allocation for system energy
efficiency (SEE) maximization in the multi-user and multi-cell massive multi-input multi …

In this paper, a multigroup multicast cell-free massive MIMO (CF-mMIMO) system with
conjugate beamforming (CB) precoding is considered. In this system, M N-an-tennas access …

In recent years cell-free massive multiple-input multiple-output system has attracted
considerable attention for promising large spectral and power efficiency. However, pilot …

Cell-free massive multiple-input multiple-output (CF-mMIMO) has been considered as one of
the potential technologies for beyond-5G and 6G to meet the demand for higher data …

We investigate the coexistence of underlay spectrum sharing in cell-free massive multiple-
input multiple-output (MIMO) systems. A primary system with geographically distributed …

In this paper, we study the joint pilot assignment and resource allocation for sum-rate
(SR)(or throughput) and system energy efficiency (SEE) maximization in the multi-user and …

Massive multiple‐input multiple‐output (MIMO) technology employs hundreds of antennas at
the base station (BS) of a cellular system. Activating hundreds of antennas requires …

The paper studies a reconfigurable intelligent surface (RIS)-assisted multi-user uplink
massive multiple-input multiple-output (MIMO) system with imperfect hardware. At the RIS …

Cell-free Massive MIMO systems consist of a large number of geographically distributed
access points (APs) that serve users by coherent joint transmission. Downlink power …

In this work, the authors proposed the iterative access point (AP) selection (APS), linear
minimum mean‐square error (MMSE) precoding and power allocation techniques for cell …