Results 181 to 190 of about 847 (211)
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The Meta Distributions of Secrecy Rate for the Downlink NOMA Systems
IEEE Wireless Communications Letters, 2021In this letter, the Meta distributions (MDs) of the secrecy rate in downlink non-orthogonal multiple access (NOMA) systems with randomly located eavesdroppers are investigated. Due to the complexity of calculation, the MDs for NOMA users are approximated by Beta approximation and the analytical expressions for the first two moments of conditional ...
Hongjiang Lei +5 more
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Secrecy rate with friendly full-duplex relay
2015 IEEE Wireless Communications and Networking Conference (WCNC), 2015This paper considers the use of a friendly full-duplex (FD) relay to increase the secrecy rate over a fading channel between the legitimate source and destination in the presence of a naive or informed eavesdropper. Naive eavesdropper can only decode the received signals either from the source or from the relay, while informed eavesdropper can overhear
Saeedeh Parsaeefard, Tho Le-Ngoc
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The achievable secrecy rate of MISO wiretap channels
2011 International Conference on Wireless Communications and Signal Processing (WCSP), 2011In this paper, we study the achievable secrecy rate of the multiple input single output (MISO) wiretap channel, which consists of a transmitter, a legitimate receiver and multiple eavesdroppers. The transmitter is equipped with multiple antennas, while the receiver and all the eavesdroppers each have a single antenna. We assume that the transmitter has
Haiyang Zhang 0001, Bao-Yun Wang
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On the target secrecy rate for SISOME wiretap channels
2014 IEEE International Conference on Communications (ICC), 2014We propose a new framework for optimizing the target secrecy rate for SISOME wiretap channels when the instantaneous capacity of the eavesdropper's channel is not available at the transmitter. In our framework we introduce the effective secrecy throughput, a new optimization metric that implicitly captures the two key features of wiretap channels ...
Shihao Yan +4 more
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Secrecy Rates for Relay Selection in OFDMA Networks
2011 Third International Conference on Communications and Mobile Computing, 2011In this paper, we study the secrecy communication using physical layer security in OFDMA networks. The expressions of secrecy rates and outage probability are derived in OFDMA networks using Decode-and-Forward (DF) strategy. Monte Carlo simulations are carried out to validate our analysis.
Chunxiao Cai +2 more
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Secrecy Rate of Time Switched Transmit Diversity System
2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011Time switched transmit diversity (TSTD) system uses only one out of several transmit antennas at a time in order to exploit the benefit of transmit diversity while keeping the system simple by having only one RF chain. We show that while average rate of such a system remains similar to the capacity of the single transmit antenna, outage secrecy ...
Sinan Sinanovic +2 more
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Secrecy Rate Beamforming for Multi-Cell SWIPT Networks
2016 IEEE Globecom Workshops (GC Wkshps), 2016Considering a multicell network for secure wireless information and power transfer, this paper studies the joint design of transmit beamformers at the base stations (BSs) and receive signal splitting ratios at the end users' equipment (UEs). The primary concern in this work is the network internal security, where there may be a single multi-antenna ...
Ali A. Nasir +3 more
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Secrecy Rate of MISO Optical Wireless Scattering Communications
IEEE Transactions on Communications, 2018We consider the secrecy rate for the multiple-input single-output optical wireless scattering communication, where the detected signal can be characterized by discrete photoelectrons. Assuming a legitimate receiver and an eavesdropper, we propose two secure communication protocols, the non-jamming protocol, and the cooperative jamming protocol, where ...
Difan Zou, Chen Gong 0001, Zhengyuan Xu
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Optimization of secrecy rate in cooperative device to device communications
2017 IEEE 30th Canadian Conference on Electrical and Computer Engineering (CCECE), 2017In this paper, a cooperative device to device (D2D) communication system is studied while two transmitting devices communicate with one destination device in the presence of a passive eavesdropper. The second transmitting device cooperates with the first transmitting device and hence the transmission takes place is two phases.
Maryam Alibeigi +2 more
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On Ergodic Secrecy Rate for Gaussian MISO Wiretap Channels
IEEE Transactions on Wireless Communications, 2011A Gaussian multiple-input single-output (MISO) wiretap channel model is considered, where there exists a transmitter equipped with multiple antennas, a legitimate receiver and an eavesdropper, each equipped with a single antenna. We study the problem of finding the optimal input covariance that maximizes the ergodic secrecy rate subject to a power ...
Jiangyuan Li, Athina P. Petropulu
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