In this paper, we consider device-to-device (D2D) communication that is underlaid in a multi-
cell massive multiple-input multiple-output (MIMO) system and proposes a new framework …

In a device-to-device (D2D) underlaid massive multiple-input multiple-output system, D2D
transmitters reuse the uplink spectrum of cellular users (CUs), leading to cochannel …

In this letter, we propose pilot reuse among device-to-device (D2D) users (DUs) in a D2D
underlay massive MIMO system to shorten pilot overhead. First, we derive a lower bound on …

In this paper, we investigate optimal downlink power allocation in massive multiple-input
multiple-output (MIMO) networks with distributed antenna arrays (DAAs) under correlated …

We consider the downlink of a cell-free massive multiple-input multiple-output (MIMO)
network, where numerous distributed access points (APs) serve a smaller number of users …

In this paper, we investigate downlink power control in massive multiple-input multiple-
output (MIMO) networks with distributed antenna arrays. The base station (BS) in each cell …

Cell-free massive multiple-input multiple-output (CF-mMIMO) systems are expected to
provide faster and more robust connections to user equipments by cooperation of a massive …

Pilot pollution and limited power have become two important factors limiting the throughput
of massive multi-input–multioutput (MIMO) systems. To improve system performance, we …

Device-to-device (D2D) communication coexisted with a cell-free massive multiple-input
multiple-output (MIMO) system will be one of the pieces of the B5G/6G jigsaw puzzle. In this …

In this paper, we investigate the coexistence of two technologies that have been put forward
for the fifth generation (5G) of cellular networks, namely, network-assisted device-to-device …