Physical-Layer Security Enhancement via Relay-Aided D2D Communications Underlaying Cellular Networks

D2D Communications with Enhanced Physical Layer Security in Cellular Networks

In this paper, we consider secure device-to-device (D2D) direct communication in cellular networks for wiretap channel. We assume that D2D transmitter sends its data to desired D2D receiver by reusing frequency resources originally allocated to the cellular link transmission between a base station (BS) and a cellular user. When there is a single eavesdropper (ED) in wiretap channel, we propose ...

Precoder Design for Multicast D2D Communications Underlaying Cellular Networks

In this paper, we consider multicast device-to-device (D2D) direct communication underlaying cellular network where D2D multicast link reuses uplink frequency resources of cellular communication. We assume that a D2D multicast transmitter is equipped with multiple transmit antennas. Hence, well-known multiple antenna transmission schemes can be used in D2D multicast transmitter to reduce the in...

A SINR Improvement Algorithm for D2D Communication Underlaying Cellular Networks

In this paper, we study the interference scenario where multiple Device-to-Device (D2D) pairs and one cellular use share the same spectrum resources, and propose a novel D2D signal-to-interference-plus-noise ratio (SINR) improvement algorithm called DSIA from the perspective of precoding and decoding. Numerical results show that in comparison with the traditional spectrum orthogonal scheme, the...

Correction to: Artificial noise-assisted physical layer security in D2D-enabled cellular networks

Artificial noise-assisted physical layer security in D2D-enabled cellular networks

Device-to-device (D2D) communication has been deemed as a promising technology in the next generation 5G wireless communication. Due to the openness nature of the transmission medium, secure transmission is also a critical issue in the D2D-enabled cellular network as well as other wireless systems. In this paper, we investigate secure communication for the cellular downlink in this hybrid netwo...