DocumentCode
2941335
Title
Directional modulation and coding in arrays
Author
Daly, Michael P. ; Bernhard, Jennifer T.
Author_Institution
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA
fYear
2011
fDate
3-8 July 2011
Firstpage
1984
Lastpage
1987
Abstract
Directional modulation (DM), a type of array beamforming that scrambles signals in unwanted transmit directions, is applied to coded signals to examine the security benefit. With coding, there is a pronounced SNR threshold below which no useful information can be recovered. Compared to conventional phased arrays, DM is shown to require a higher SNR to decode a signal in unwanted transmit directions while not requiring any additional SNR gain to recover the signal in the desired transmit direction. An optimization method of solving for array weights and simulated examples are given.
Keywords
antenna phased arrays; array signal processing; decoding; modulation; optimisation; SNR threshold; array beamforming; coded signals; directional modulation; optimization; phased arrays; security benefit; Antennas; Delta modulation; Equations; Optimization; Quadrature amplitude modulation; Security;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location
Spokane, WA
ISSN
1522-3965
Print_ISBN
978-1-4244-9562-7
Type
conf
DOI
10.1109/APS.2011.5996894
Filename
5996894
Link To Document