Creating secure wireless regions using configurable beamforming

Yuanrui Zhang, Alan Marshall, Roger Woods, Youngwook Ko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)
261 Downloads (Pure)

Abstract

We present a novel approach to network security against passive eavesdroppers by employing a configurable beam-forming technique to create tightly defined regions of coverage for targeted users. In contrast to conventional encryption methods, our security scheme is developed at the physical layer by configuring antenna array beam patterns to transmit the data to specific regions. It is shown that this technique can effectively reduce vulnerability of the physical regions to eavesdropping by adapting the antenna configuration according to the intended user's channel state information. In this paper we present the application of our concept to 802.11n networks where an antenna array is employed at the access point, and consider the issue of minimizing the coverage area of the region surrounding the targeted user. A metric termed the exposure region is formally defined and used to evaluate the level of security offered by this technique. A range of antenna array configurations are examined through analysis and simulation, and these are subsequently used to obtain the optimum array configuration for a user traversing a coverage area.

Original languageEnglish
Title of host publication2014 IEEE 25th Annual International Symposium on Personal, Indoor and Mobile Radio Communications Proceedings (PIMRC)
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages47-52
Number of pages6
ISBN (Electronic)9781479949120
ISBN (Print)ISSN 2166-9589
DOIs
Publication statusPublished - Nov 2014
Event2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014 - Washington, United States
Duration: 02 Sep 201405 Sep 2014

Conference

Conference2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014
Country/TerritoryUnited States
CityWashington
Period02/09/201405/09/2014

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