• Optimal and Robust Transmit De...

Result: Optimal and Robust Transmit Designs for MISO Channel Secrecy by Semidefinite Programming

Title:
Optimal and Robust Transmit Designs for MISO Channel Secrecy by Semidefinite Programming
Authors:
QIANG LI, MA, Wing-Kin
Source:
IEEE transactions on signal processing. 59(8):3799-3812
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2011.
Publication Year:
2011
Physical Description:
print, 43 ref
Original Material:
INIST-CNRS
Subject Terms:
Telecommunications, Télécommunications, Sciences exactes et technologie, Exact sciences and technology, Sciences appliquees, Applied sciences, Telecommunications et theorie de l'information, Telecommunications and information theory, Théorie de l'information, du signal et des communications, Information, signal and communications theory, Théorie du signal et des communications, Signal and communications theory, Signal, bruit, Signal, noise, Détection, estimation, filtrage, égalisation, prédiction, Detection, estimation, filtering, equalization, prediction, Antenne, Antenna, Antena, Covariance, Covariancia, Estimation canal, Channel estimation, Estimación canal, Estimation paramètre, Parameter estimation, Estimación parámetro, Evaluation performance, Performance evaluation, Evaluación prestación, Formation voie, Beam forming, Formación haz, Méthode cas pire, Worst case method, Método caso peor, Optimisation, Optimization, Optimización, Programmation non convexe, Non convex programming, Programación no convexa, Secret, Secrecy, Secreto, Simulation, Simulación, Solution optimale, Optimal solution, Solución óptima, Stratégie optimale, Optimal strategy, Estrategia optima, Sécurité télécommunication, Telecommunication security, Traitement signal, Signal processing, Procesamiento señal, Réseau d'antennes, Antenna array, Physical-layer secrecy, secrecy capacity, semidefinite program, transmit beamforming
Document Type:
Academic journal Article
File Description:
text
Language:
English
Author Affiliations:
Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, Hong-Kong
ISSN:
1053-587X
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=24392179
Rights:
Copyright 2015 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Telecommunications and information theory
Accession Number:
edscal.24392179
Database:
PASCAL Archive

Further Information

In recent years there has been growing interest in study of multi-antenna transmit designs for providing secure communication over the physical layer. This paper considers the scenario of an intended multi-input single-output channel overheard by multiple multi-antenna eavesdroppers. Specifically, we address the transmit covariance optimization for secrecy-rate maximization (SRM) of that scenario. The challenge of this problem is that it is a nonconvex optimization problem. This paper shows that the SRM problem can actually be solved in a convex and tractable fashion, by recasting the SRM problem as a semidefinite program (SDP). The SRM problem we solve is under the premise of perfect channel state information (CSI). This paper also deals with the imperfect CSI case. We consider a worst-case robust SRM formulation under spherical CSI uncertainties, and we develop an optimal solution to it, again via SDP. Moreover, our analysis reveals that transmit beamforming is generally the optimal transmit strategy for SRM of the considered scenario, for both the perfect and imperfect CSI cases. Simulation results are provided to illustrate the secrecy-rate performance gains of the proposed SDP solutions compared to some suboptimal transmit designs.