Cooperative Jamming for Secure UAV Communications With Partial Eavesdropper Information

Worst-Case Cooperative Jamming for Secure Communications in CIoT Networks

The Internet of Things (IoT) is a significant branch of the ongoing advances in the Internet and mobile communications. The use of a large number of IoT devices makes the spectrum scarcity problem even more serious. The usable spectrum resources are almost entirely occupied, and thus, the increasing radio access demands of IoT devices cannot be met. To tackle this problem, the Cognitive Interne...

UAV-assisted Cooperative Communications with Wireless Information and Power Transfer

In this paper, we focus on a typical cooperative communication system with one pair of source and destination, where a unmanned aerial vehicle (UAV) flying from a start location to an end location serves as a mobile relay. To efficiently utilize energy in ambient environment, the UAV’s transmission capability is powered exclusively by radio signal transmitted from the source via the power-split...

Secure Communications in OFDMA networks with active eavesdropper

In this paper, we formulate the resource allocation problem for secure communications in a single cell OFDMA network where a base station wants to communicate to the users which are spread over its coverage area while an adversary is present in the network. In our model, we assume that the adversary s an active attacker which is able to either eavesdrop on the information transmitted over the w...

Cooperative Communications for Wireless Information Assurance: Secure Cooperative Communications and Testbed Development

Secure Multiuser Communications in Wireless Sensor Networks with TAS and Cooperative Jamming

In this paper, we investigate the secure transmission in wireless sensor networks (WSNs) consisting of one multiple-antenna base station (BS), multiple single-antenna legitimate users, one single-antenna eavesdropper and one multiple-antenna cooperative jammer. In an effort to reduce the scheduling complexity and extend the battery lifetime of the sensor nodes, the switch-and-stay combining (SS...