Physical Layer Security in Heterogeneous 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 ...

Physical Layer Security in Wireless Communication Networks

Physical layer (PHY) security has become an emerging area of research recently. Wireless networks use unguided medium as communication channels, so gathering wireless data transmission is easier when compared to traditional cable systems. With the rise of new security challenges, many different solutions have been offered and are being developed. However, maintaining security in wireless networ...

Physical layer security in broadcast networks

This paper reviews the information theoretic characterization of security in broadcast channels, in which a transmitter has both public and confidential messages intended for multiple receivers. All messages must be successfully received by their intended receivers, and the confidential messages must be kept as secret as possible from non-intended recipients. Various scenarios are considered in...

Artificial Interference Aided Physical Layer Security in Cache-enabled Heterogeneous Networks

Caching popular contents is a promising way to offload the mobile data traffic in wireless networks, but so far the potential advantage of caching in improving physical layer security (PLS) is rarely considered. In this paper, we contribute to the design and theoretical understanding of exploiting the caching ability of users to improve the PLS in a wireless heterogeneous network (HetNet). In s...

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