Results 151 to 160 of about 1,176,752 (196)
Robust Outage Secrecy Rate Optimizations for a MIMO Secrecy Channel
IEEE Wireless Communications Letters, 2015 This letter investigates robust secrecy rate optimization techniques for a multiple-input-multiple-output (MIMO) wiretap channel in the presence of a multiantenna eavesdropper.
Zhiguo Ding +2 more
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Secrecy Outage Probability in Backscatter Communication Systems With Tag Selection
IEEE Wireless Communications Letters, 2021In this letter, we propose a tag selection scheme to enhance the security transmission in a passive backscatter communication system with multiple tags and one eavesdropper, and analyze the secrecy outage probability (SOP). In particular, considering a practical non-linear energy harvesting model, we first determine the optimal dynamic reflection ...
Yingting Liu +2 more
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Improving Secrecy Outage Probability with Symbol Extension
2014 IEEE 79th Vehicular Technology Conference (VTC Spring), 2014This paper reveals symbol extension is capable of improving secrecy performance in the multiple-input single-output (MISO) wiretap channel. We propose a symbol extension scheme jointly with the existing beamforming and artificial noise generation strategy to exploit the time variation of fading channel.
Cong Zhang 0003 +3 more
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Secrecy Outage Probability in Multi-RAT Heterogeneous Networks
IEEE Communications Letters, 2016Practical 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 +3 more
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Secrecy outage probability of wirelessly powered wiretap channels
2016 24th European Signal Processing Conference (EUSIPCO), 2016This 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 +3 more
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Secrecy Outage Analysis of Buffer-Aided Cooperative MIMO Relaying Systems
IEEE Transactions on Vehicular Technology, 2017 This work investigates the secrecy outage performance of buffer-aided multi-relay multiple-input multiple-output (MIMO) cooperative systems in the presence of a passive eavesdropper.
Wendong Yang +2 more
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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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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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Secrecy Outage Probability of Hybrid Satellite-Terrestrial Relay Networks
GLOBECOM 2017 - 2017 IEEE Global Communications Conference, 2017In 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 +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), 2017In 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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Secrecy outage probability for the multiuser downlink with several curious users
2016 IEEE Wireless Communications and Networking Conference, 2016This paper studies the physical layer security in a multi-user downlink, where a single user is selected for secret transmission during each time frame. Current works usually assume a worst case where all unselected users are curious and act as eavesdroppers, and conclude that no multiuser diversity is achievable for secrecy when the number of users is
Na Li 0001 +3 more
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