Results 161 to 170 of about 4,651 (205)
Some of the next articles are maybe not open access.
Secrecy outage probability of cooperative network through distributed Alamouti code
2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2015Abstract--- The cooperative diversity technique combined with distributed space-time coding can efficiently improve the secrecy capacity and transmission reliability of wireless communication systems. In this paper, a multicast cooperative relaying system based on distributed Alamouti space-time coding was considered, in order to jam an eavesdropper ...
Alotaibi, E, Hamdi, K, So, Daniel K C
openaire +2 more sources
Secrecy outage probability of relay networking in multiple destination and eavesdropper scenarios
2014 IEEE Wireless Communications and Networking Conference (WCNC), 2014This paper investigates the secrecy outage probability of multicast cooperative relay networking in the presence of multi-destination and multi-eavesdropper nodes. The study is carried out in a multicast relay communication scenario whereby multi-eavesdropper nodes attempt to overhear the source message.
Alotaibi, E R, Hamdi, K A
openaire +2 more sources
Transactions on Emerging Telecommunications Technologies, 2015
AbstractIn this paper, we study the multiple‐input multiple‐output multiple‐eavesdropper wiretap channel in the nonergodic and ergodic scenarios, both with stationary Rayleigh distributed fading channels. For the ergodic scenario, we derive a new closed‐form expression for the ergodic secrecy capacity with full channel state information at the ...
Andre Saito Guerreiro +2 more
openaire +1 more source
AbstractIn this paper, we study the multiple‐input multiple‐output multiple‐eavesdropper wiretap channel in the nonergodic and ergodic scenarios, both with stationary Rayleigh distributed fading channels. For the ergodic scenario, we derive a new closed‐form expression for the ergodic secrecy capacity with full channel state information at the ...
Andre Saito Guerreiro +2 more
openaire +1 more source
Secrecy Outage Probability of Cooperative Relay Networks with Channel Estimation Error
2018 IEEE Global Communications Conference (GLOBECOM), 2018In this paper, we consider a dual-hop decode-and-forward (DF) relay network which consists of a source, a destination and multiple DF relays in the presence of an eavesdropper, where the source transmits its data to the destination with the help of DF relays while the eavesdropper attempts to tap the relay transmissions.
Yulong Zou +3 more
openaire +1 more source
Exact Outage Probability of Cooperative Secrecy Transmission: Impact of Unavailable Relays
Wireless Personal Communications, 2015The impact of unavailable relays is a serious issue in cooperative communication schemes, where the operation state of relays affects optimal relay selection. In addition, secure signal transmission is an interesting approach to prevent the wiretapping actions of eavesdropper nodes in a wireless environment.
Pham Ngoc Son, Hyung Yun Kong
openaire +1 more source
Minimizing secrecy outage probability for primary users in cognitive radio networks
AEU - International Journal of Electronics and Communications, 2018Abstract This paper considers a cognitive radio network with a set of secondary users (SUs) who share a spectrum band licensed to a primary user (PU). The PU is assumed to be eavesdropped by a set of eavesdroppers and the SUs are required to interfere with the eavesdroppers to gain their transmission opportunities.
Qun Li, Ding Xu
openaire +1 more source
Secrecy Outage Probability of Selective Relaying Wiretap Channels with Collaborative Eavesdropping
2015 IEEE Global Communications Conference (GLOBECOM), 2014We analyze the secrecy outage probability of selective relaying wiretap channels with K decode- and-forward (DF) relays and N collaborative eavesdroppers. In the main channel, we consider a two-hop relay network where the best relay is selected to transmit and the relay link is combined with the direct source-to-destination link at the destination.
Phee Lep Yeoh, Nan Yang, Kyeong Jin Kim
openaire +1 more source
Secrecy outage probability and jamming coverage of UAV-enabled friendly jammer
2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS), 2017In this paper, we examine the secrecy performance of an unmanned aerial vehicle (UAV) equipped with an air-to-ground jammer and a ground communications network comprising a legitimate transmitter-receiver pair and an eavesdropper. We consider two scenarios: stationary UAV jammer and mobile UAV jammer. In the first scenario, we derive the secrecy outage
Yi Zhou +5 more
openaire +1 more source
Secrecy Outage Probability of a Distributed Multi-Antenna Cooperative Communication System
Wireless Personal Communications, 2016A distributed multi-antenna cooperative communication system with amplify-and-forward mode for secure communication in the presence of an eavesdropper is considered. In the communication system, there is no direct communication link between the transmitter and the intended receiver, and all nodes except relay nodes are equipped with multi-antenna.
Nan Run Zhou +4 more
openaire +1 more source
Secrecy Outage Probability of Multiuser Untrusted Amplify-and-Forward Relay Networks
2017 IEEE 85th Vehicular Technology Conference (VTC Spring), 2017This paper investigates the effect of untrusted relay on the secrecy outage probability of amplify- and-forward relay networks with the help of direct links and multiple users. We consider three selection criteria which are based on the direct and relaying link. The impacts of both the direct and relaying links on SOP performance is studied by deriving
Dan Deng, Wen Zhou, Lisheng Fan
openaire +1 more source