Title :
A smart antenna employing digital beamforming for WLAN surveillance
Author :
Nuteson, T.W. ; Mitchell, G.S. ; Haque, D.S. ; Clark, J.S.
Author_Institution :
The Aerosp. Corp., Chantilly, VA, USA
Abstract :
In this paper we address the current development of an IEEE 802.11b WLAN surveillance system that combines the use of COTS WiFi devices with a custom antenna system capable of electronically steering a high gain beam and performing real-time mobile station location, interference mitigation and physical layer signal formation. This application of smart antenna technology requires the system to locate arbitrary (typically hostile) WLAN users and disassociate them from the network.
Keywords :
IEEE standards; adaptive antenna arrays; array signal processing; beam steering; interference suppression; mobile computing; surveillance; wireless LAN; COTS WiFi devices; IEEE 802.11b; WLAN surveillance; digital beamforming; high gain beam steering; hostile WLAN users; interference mitigation; physical layer signal formation; real-time mobile station location; smart antenna; Antenna arrays; Array signal processing; Engines; Field programmable gate arrays; Filtering; Mobile antennas; Radio frequency; Real time systems; Surveillance; Wireless LAN;
Conference_Titel :
Wireless Communication Technology, 2003. IEEE Topical Conference on
Print_ISBN :
0-7803-8196-3
DOI :
10.1109/WCT.2003.1321576
