This paper focuses on the multiple-input-multiple-output (MIMO) two-way relay system with
an untrusted relay and investigates its secure and energy-efficient precoding design issue …

Physical-layer secure is an important issue for untrusted relay systems. In this paper, we
investigate secure precoding design for non-regenerative multiple-input multiple-output …

In this paper, we investigate the security issue of a two-hop amplify-and-forward multiple-
input multiple-output wireless relay network in the existence of a multiantenna …

In this paper, we propose a joint source-relay precoding scheme to secure an amplify-and-
forward multiple-input multiple-output wireless relay network in the existence of a multi …

Robust artificial noise (AN) aided secure precoding for an amplify-and-forward multiple-input
multiple-output untrusted relay system is studied, where the relay is untrusted and willing to …

This paper addresses joint transceiver design for secure downlink communications over a
multiple-input multiple-output relay system in the presence of multiple legitimate users and …

This paper focuses on a full-duplex multiple-input multiple-output two-way untrusted relay
system, and investigates the optimal beamforming design of such system to maximize its …

In this paper, we propose a novel secure transmission scheme for multiple-input multiple-
output (MIMO) Two-Way relay channels, where multi-pair communication partners exchange …

In this paper, we raise the concern on energy-efficient secure communication over a decode-
and-forward relay network with potential eavesdroppers. Our objective is maximizing the …

In this paper, a joint relay selection and power allocation (JRP) scheme is proposed to
enhance the physical layer security of a cooperative network, where a multiple antennas …