Results 151 to 160 of about 5,210,021 (184)
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Ergodic Secrecy Sum Rate Analysis of a Two-Way Relay NOMA System
IEEE Systems Journal, 2021In this letter, we investigate the ergodic secrecy sum rate of a two-way relay NOMA system. In particular, by considering decode-and-forward signal processing at the relay and selection combining at the eavesdropper, we derive a tight closed-form ergodic secrecy sum rate expression for the considered system.
Ha H Nguyen, Mahendra Kumar Shukla
exaly +3 more sources
Ergodic secrecy sum rate for multiuser MIMO downlink systems using block diagonalization
To date, the achievable ergodic secrecy sum rate has been studied for multiuser MIMO downlink systems with single-antenna receivers only. In this paper, we study multiuser MIMO downlink systems with multiple-antenna receivers and an external single-antenna eavesdropper to be kept ignorant of the transmitted messages.
Xuanxuan Wang +4 more
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On the Ergodic Secrecy Rate of Massive MIMO Transmission with Partial Legitimate User CSI
In this paper, we consider the downlink transmission over a single-cell massive multiple-input-multiple-output (MIMO) system in the presence of multiple single-antenna eavesdroppers (massive MIMOME). We concentrate on the practical scenario where partial channel state information (CSI) of legitimate users and no CSI of eavesdroppers are available at ...
Bao T., Yang H.-C., Hasna , Mazen
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On the Ergodic Secrecy Rate of Cooperative Decode-and-Forward Relay Networks
2014 IEEE Military Communications Conference, 2014In this article, we develop a unified analytical framework for investigation of the ergodic secrecy rates of cooperative decode-and-forward relay networks in a myriad of fading environments. We utilized an exponential-type integral representation for the logarithmic function to derive an approximate expression for the ergodic secrecy rates of ...
Eyidayo Adebola, Annamalai Annamalai
exaly +3 more sources
Ergodic Secrecy Rates of Secure Wireless Communications
2014 IEEE Military Communications Conference, 2014Two unified analytical frameworks that facilitate the evaluation of the ergodic secrecy rates of Wyner wiretap channel in generalized fading environments without/with diversity receivers are developed. In contrast to prior work that is limited to only the Rayleigh fading environment, our new formulas expressed in terms of only the moment generating ...
O Olabiyi
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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 ...
Athina P. Petropulu, Jiangyuan Li
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Ergodic secrecy rate of two-user MISO interference channels with statistical CSI
Science China Information Sciences, 2014This paper considers a two-user multiple-input single-output (MISO) interference channel with confidential messages (IFC-CM), where the beamforming vectors at the two transmitters are jointly optimized using the closed-form Pareto-optimal parameterization.
Di Zhao, Chengwen Xing, Zesong Fei
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Achievable Ergodic Secrecy Rate in Bursty Interference Channels With Opportunistic User Scheduling
IEEE Transactions on Communications, 2019This paper studies secure transmissions in a bursty interference channel constructed by opportunistic user scheduling. To improve the physical layer security, we propose a signal-to-noise-plus-interference ratio (SINR) based opportunistic transmission scheme and mathematically analyze the ergodic secrecy rate per transmitter-receiver pair.
Hyung-Myung Kim, Wan Choi
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Ergodic Secrecy Sum-Rate for Downlink Multiuser MIMO Systems With Limited CSI Feedback
IEEE Communications Letters, 2014This paper investigates the ergodic secrecy sum-rate for the downlink multiuser MIMO system with independent confidential messages, each of which is intended for one of the users and should keep secret from others. We adopt zero-forcing beamforming with limited channel state information (CSI) feedback at the transmitter, and derive the closed-form ...
Xiaofeng Tao, Jin Xu
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IEEE Communications Letters, 2014
In this letter, we study the ergodic secrecy sum-rate of a multiuser downlink system achievable by using the regularized zero-forcing precoding based on imperfect channel estimation. The channels between the base station and users are modeled as fading channels with different spatial correlations and line-of-sight components.
Chao-Kai Wen, Xiqi Gao, Chau Yuen
exaly +2 more sources
In this letter, we study the ergodic secrecy sum-rate of a multiuser downlink system achievable by using the regularized zero-forcing precoding based on imperfect channel estimation. The channels between the base station and users are modeled as fading channels with different spatial correlations and line-of-sight components.
Chao-Kai Wen, Xiqi Gao, Chau Yuen
exaly +2 more sources

