Results 161 to 170 of about 465 (189)

On the Ergodic Secrecy Rate of Cooperative Decode-and-Forward Relay Networks

2014 IEEE Military Communications Conference, 2014
In 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   +2 more sources

Ergodic Secrecy Rates of Secure Wireless Communications

2014 IEEE Military Communications Conference, 2014
Two 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, A Annamalai
exaly   +2 more sources

Ergodic secrecy rate of two-user MISO interference channels with statistical CSI

Science China Information Sciences, 2014
This 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.
Zesong Fei, Jiqing Ni, Di Zhao
exaly   +2 more sources

On Ergodic Secrecy Rate for Gaussian MISO Wiretap Channels

IEEE Transactions on Wireless Communications, 2011
A 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
exaly   +2 more sources

Achievable Ergodic Secrecy Rate in Bursty Interference Channels With Opportunistic User Scheduling

IEEE Transactions on Communications, 2019
This 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
exaly   +2 more sources

Ergodic Secrecy Sum-Rate for Downlink Multiuser MIMO Systems With Limited CSI Feedback

IEEE Communications Letters, 2014
This 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
exaly   +2 more sources

Ergodic Secrecy Rate of $K$-User MISO Broadcast Channel With Improved Random Beamforming

IEEE Transactions on Vehicular Technology, 2019
In this paper, we study the secrecy performance of a $K$ -user multi-input single-output (MISO) broadcast channel with random beamforming (RB), where the transmitter is equipped with $N$ antennas, and the eavesdropper has $N_e$ antennas.
Ye Fan, Xuewen Liao, Zhenzhen Gao
exaly   +2 more sources

Ergodic Secrecy Sum-Rate for Multiuser Downlink Transmission via Regularized Channel Inversion: Large System Analysis

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.
Chau Yuen, Chao-Kai Wen, Shi Jin
exaly   +2 more sources

Ergodic Secrecy Rate Analysis of Ultra-Dense Networks with Multiple Antennas

ICC 2021 - IEEE International Conference on Communications, 2021
Ultra-Dense Networks (UDNs), where Small Cells (SCs) will be deployed in very high densities, are considered as a leading promising technology in 5G and beyond. Such SCs being equipped with multiple antennas can further enhance the achievable performance.
Mohammed Elbayoumi, Walaa Hamouda, Amr M. Youssef   +2 more
openaire   +1 more source

On the Ergodic Capacity and Ergodic Secrecy Rate of Rate Splitting Aided Wireless Multiple Access Channel With Correlated Channel Coefficients

2025 13th Iran Workshop on Communication and Information Theory (IWCIT)
Jalil Etminan, Ghosheh Abed Hodtani
exaly   +2 more sources