Results 281 to 290 of about 12,804,341 (306)

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
openaire   +1 more source

An improved achievable secrecy rate for the relay-eavesdropper channel

2013 IEEE Wireless Communications and Networking Conference (WCNC), 2013
This paper study information-theoretic security for a four-node relay-eavesdropper channel. We propose a new achievable scheme whose key idea is to combine noisy network coding for relay channels and the interference assisted strategy for wiretap channel with a helping interferer.
Peng Xu 0002, Zhiguo Ding 0001, Xuchu Dai, Kin K. Leung   +3 more
openaire   +1 more source

Secrecy Rate of MISO Optical Wireless Scattering Communications

IEEE Transactions on Communications, 2018
We 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
openaire   +1 more source

Opportunistic Scheduling for Average Secrecy Rate Enhancement in Fading Downlink Channel With Potential Eavesdroppers

IEEE Transactions on Information Forensics and Security, 2019
In this paper, we consider user scheduling and power allocation techniques for downlinks where transmitted message must be kept confidential from all other unintended users and the number of users is larger than that of access point (AP) antennas.
M. Abbas, Hojin Song, Jun-Pyo Hong
semanticscholar   +1 more source

Optimization of secrecy rate in cooperative device to device communications

2017 IEEE 30th Canadian Conference on Electrical and Computer Engineering (CCECE), 2017
In 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, Abbas Taherpour, Saeed Gazor   +2 more
openaire   +1 more source

Outage Constrained Secrecy Rate Maximization for MIMOME Multicast Wiretap Channels

IEEE Wireless Communications Letters, 2019
In this letter, we investigate a robust transmit optimization design based on an artificial noise (AN)-aided precoding scheme for maximizing secrecy rate in a multiple-input multiple-output multiple-eavesdropper multicast network where a transmitter ...
Huan-huan Song, H. Wen, Runfa Liao, Yi Chen, Songlin Chen   +4 more
semanticscholar   +1 more source

Secrecy Rate Beamforming for Multi-Cell SWIPT Networks

2016 IEEE Globecom Workshops (GC Wkshps), 2016
Considering 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, Hoang Duong Tuan, Trung Quang Duong, H. Vincent Poor   +3 more
openaire   +2 more sources

Efficient Algorithm for Selecting Secrecy Rate Maximizing Antennas

IEEE Communications Letters, 2013
Antenna selection (AS) is poised to provide solutions to hardware complexity issues while guaranteeing untappable information flow. We investigate the AS problem set up in the context of linear precoder design for secrecy rate maximization of a multiple-input single-output system. The original problem is both non-tractable and nonconvex.
openaire   +1 more source

Subspace Decomposition of Extreme-Rate Secrecy Codes

2022 IEEE International Symposium on Information Theory (ISIT), 2022
David Hunn, Willie K. Harrison
openaire   +1 more source

Societal secrecy and IPO underpricing

Journal of Corporate Finance, 2022
Madhu Veeraraghavan
exaly