Distributed and collaborative beamforming (DCBF) scheme in wireless sensor networks
(WSNs) is receiving newfound interest in recent times due to the rapid advancements in …

A new approach to distributed cooperative beamforming in relay networks with frequency
selective fading is proposed. It is assumed that all the relay nodes are equipped with finite …

In this paper, we consider robust joint designs of relay precoder and destination receive
filters in a nonregenerative multiple-input multiple-output (MIMO) relay network. The network …

In this paper, collaborative use of relays to form a beamforming system with the aid of perfect
channel state information (CSI) and to provide physical-layer security is investigated. In …

A conventional collaborative beamforming (CB) system suffers from high sidelobes due to
the random positioning of the nodes. This paper introduces a hybrid metaheuristic …

Energy efficiency is a major design issue in the context of Wireless Sensor Networks (WSN).
If the acquired data is to be sent to a far-away base station, collaborative beamforming …

In this paper, collaborative use of relays to form a beamforming system and provide physical-
layer security is investigated. In particular, amplify-and-forward (AF) relay beamforming …

This study investigates the secrecy performance of a hybrid satellite‐terrestrial relay network
(HSTRN) in the presence of multiple eavesdroppers, where the satellite link undergoes …

Intelligent reflecting surface (IRS), equipped with multiple reflective elements, is an important
technology for improving the achievable rate and energy efficiency of communications …

This paper studies a multi-antenna multi-user and multi-relay network, where the radio
frequency (RF) power amplifiers (PA) of the nodes are subject to instantaneous power …