Results 161 to 170 of about 29,228 (228)

On the ergodic secrecy capacity and secrecy outage probability of the MIMOME Rayleigh wiretap channel

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, Gustavo Fraidenraich, Richard Demo Souza   +2 more
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Outage probability and secrecy capacity of a non-orthogonal multiple access system

2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS), 2017
In this paper, we analyze the outage probability and secrecy capacity of a non-orthogonal multiple access (NOMA) system in the presence of an eavesdropper. In order to enhance spectral efficiency, a base station communicates with two users simultaneously in the same frequency band by superpimposing the transmit signals to the users in the power domain.
Thi My Chinh Chu, Hans-Jürgen Zepernick
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Secrecy outage probability of relay networking in multiple destination and eavesdropper scenarios

2014 IEEE Wireless Communications and Networking Conference (WCNC), 2014
This 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.
Esa R. Alotaibi, Khairi Ashour Hamdi
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Secrecy outage probability of cooperative network through distributed Alamouti code

2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2015
Abstract--- 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 ...
Esa R. Alotaibi, Daniel K. C. So, Khairi Ashour Hamdi   +2 more
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Secrecy Outage Probability in Multi-RAT Heterogeneous Networks

IEEE Communications Letters, 2016
Practical difficulty in examining all base stations (BSs) to choose the best one providing secure transmission in heterogeneous networks (HetNets), we impose a BS association constraint in this letter that the BSs providing an average received signal power at the legitimate user greater than a predetermined receiving threshold can be candidate serving ...
Huici Wu, Xiaofeng Tao 0001, Na Li 0001, Jin Xu 0001   +3 more
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Secrecy outage probability of wirelessly powered wiretap channels

2016 24th European Signal Processing Conference (EUSIPCO), 2016
This paper considers a wirelessly powered wiretap channel, where an energy constrained information source, powered by a dedicated power beacon, communicates with a legitimate user in the presence of a passive eavesdropper. The source is assumed to have multiple antennas, while the other three nodes are equipped with a single antenna each. Considering a
Xin Jiang 0009, Caijun Zhong, Xiaoming Chen 0001, Zhaoyang Zhang 0001   +3 more
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Secrecy Outage Probability of Hybrid Satellite-Terrestrial Relay Networks

GLOBECOM 2017 - 2017 IEEE Global Communications Conference, 2017
In this paper, we consider a hybrid satellite- terrestrial relay network (HSTRN) composed of a geostationary satellite, a terrestrial destination and multiple terrestrial relays in the presence of an eavesdropper, where the satellite transmits its data to the terrestrial destination via decode-and- forward (DF) relays while the secure transmission from
Weifeng Cao, Yulong Zou, Zhen Yang 0001, Jia Zhu 0001   +3 more
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Secrecy outage probability of UAV-aided selective relaying networks

2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN), 2017
In this work, we analyze the secrecy outage probability of unmanned aerial vehicle (UAV)-aided selective relaying networks with M UAV-transmitters (UTs), N UAV-relays(URs), and K collaborative UAV-eavesdroppers (UEs). In the main channel, the best UT-UR pair is selected to transmit the source message to the destination, while unreliable ground-to-air ...
Hongwu Liu, Kyung Sup Kwak
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On Wireless Channels with M-Antenna Eavesdroppers: Characterization of the Outage Probability and Outage Secrecy Capacity

2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010
In this paper, we consider secure communications between a single antenna transmitter and a single antenna receiver in the presence of a multiple antenna eavesdropper employing MRC or SDC reception. We show that an M-antenna eavesdropper performing SDC reception has precisely the same degrading effect on secrecy as M single antenna eavesdroppers under ...
Vinay Uday Prabhu, Miguel Rodrigues
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Minimizing Secrecy Outage Probability in Multiuser Wireless Systems With Stochastic Traffic

IEEE Transactions on Vehicular Technology, 2017
We first extend the definition of the secrecy outage probability to wireless systems with adaptive transmission rates and secrecy rates. Then, we consider a scheduling problem in the aforementioned system, jointly considering the reliability, security, and stability, where the scheduler tries to allocate wireless resources to the legitimate users ...
Xuan Wang 0026, Yi Chen 0006, Lin Cai 0001, Jianping Pan 0001   +3 more
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