Physical-layer security (PLS) has attracted much attention in wireless communications and
has been considered one of the main candidates for enhancing wireless security in future …

Physical layer security is a promising way to secure the wireless communications in the
Internet of Things (IoT). Motivated by the fact that the limited feedback resources in the IoT …

This paper investigates the secrecy performance of a multiuser system that utilizes transmit
antenna selection scheme at the base station and adopts threshold-based selection …

In this paper, we consider a downlink internet-of-things (IoT) multiple-input multiple-output
(MIMO) network wherein an access point (AP), multiple IoT users, and a single …

Wireless communication is particularly susceptible to eavesdropping due to its broadcast
nature. Security and privacy issues have become increasingly critical for wireless networks …

We study the secrecy sum-rate (SSR) of a multi-user system in the presence of artificial
noise (AN) and determine conditions under which it is necessary to add AN assuming …

In this letter, we consider a multi-antenna downlink network where a secure user (SU)
coexists with a passive eavesdropper. There are two design requirements for such a …

In this paper, we consider user scheduling and power allocation techniques for downlinks
where transmitted message must be kept confidential from all other unintended users and …

In this paper, we consider a multiuser downlink wiretap network consisting of one base
station (BS) equipped with AA antennas, NB single-antenna legitimate users, and NE single …

This paper investigates physical layer security with opportunistic scheduling in a downlink
wireless network with multiple asymmetrically located legitimate users (LUs) and …