The use of cooperation to increase the information-theoretic secrecy in a decentralized ad-
hoc wireless network is investigated. In particular, four cases of cooperative relaying are …

Security is an important aspect for the future wireless networks. Since the number of network
nodes increases constantly, and, in addition, the networks are decentralized and ad-hoc in …

Physical layer security is an emerging security field that explores the possibilities of
achieving perfect secrecy data transmission between the intended network nodes, while …

Cooperation between wireless network nodes is a promising technique for improving the
physical layer security of wireless transmission, in terms of secrecy capacity, in the presence …

We employed node cooperation in a cooperative wireless network to achieve physical
layerbased security. The case of a source-destination pair that works with the assistance of …

This paper proposes a joint cooperative relaying and jamming scheme based on distributed
beamforming to enhance the secrecy rate of a wireless channel in the presence of an …

The optimal scaling law of secrecy capacity as well as the corresponding achievable
scheme have not been fully investigated in ad hoc networks. In this paper, we consider an …

The prominence of the wireless communication has been urging the monotonically
increasing demand of security and privacy. In wireless systems, the notion of perfect secrecy …

In this paper, we propose a hybrid cooperative scheme to improve the secrecy rate for a
cooperative network in presence of multiple relays. Each relay node transmits a mixed …

We consider a source-destination pair that can only communicate through an untrusted
intermediate relay node. The intermediate node is willing to employ a designated relaying …