Title
Confidential communication in downlink beamforming
Abstract
This paper deals with the problem of secure transmission in downlink beamforming. In this scenario, a base station, which usually serves information to an amount of users, wants to transmit a confidential message to one of the users. Focusing on the beamforming solution, we derive all possible weighted solutions. With this, each non-intended receiver has an importance factor and, therefore, the resulting beamformer is able to properly reconfigure its secure transmission varying the weighting factors. This derivation is done via multicriteria optimization, which allows us to transform a quasiconvex problem into a semidefinite one and, thus, reduce the computational complexity. Numerical results show the performance of the method.
Year
DOI
Venue
2012
10.1109/SPAWC.2012.6292925
Signal Processing Advances in Wireless Communications
Keywords
Field
DocType
computational complexity,radio networks,radio receivers,telecommunication security,base station,computational complexity,confidential communication,downlink beamforming,multicriteria optimization,nonintended receiver,quasiconvex problem,secure transmission
Base station,Beamforming,Weighting,Wireless,Secure transmission,Confidentiality,Computer science,Quasiconvex function,Computer network,Electronic engineering,Computational complexity theory
Conference
ISSN
ISBN
Citations 
1948-3244
978-1-4673-0970-7
1
PageRank 
References 
Authors
0.37
9
4
Name
Order
Citations
PageRank
Miguel Ángel Vázquez15710.21
Ana I. Pérez-Neira240152.50
Miguel Angel Lagunas35413.75
Perez-Neira, A.481.73