DocumentCode :
3005338
Title :
Jamming attacks against OFDM timing synchronization and signal acquisition
Author :
Pan, M.J.L. ; Clancy, T. Charles ; McGwier, Robert W.
Author_Institution :
Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA, USA
fYear :
2012
fDate :
Oct. 29 2012-Nov. 1 2012
Firstpage :
1
Lastpage :
7
Abstract :
Orthogonal Frequency Division Multiplexing (OFDM) is used in many modern communications systems. Timing and frequency synchronization in an OFDM system are critical to performance and must be carried out early and often. Current synchronization methods, such as those developed by Schmidl and Cox [1], were not designed to be robust to adversarial signals. A series of attacks against the preamble synchronization stage have been developed and demonstrated to debilitate OFDM receivers. Multiple attacks against the symbol timing estimation stage are discussed, and some possible improvements to OFDM synchronization algorithms are suggested.
Keywords :
OFDM modulation; jamming; receivers; signal detection; synchronisation; telecommunication security; OFDM receivers; OFDM timing synchronization; current synchronization methods; frequency synchronization; jamming attacks; modern communications systems; orthogonal frequency division multiplexing; preamble synchronization stage; signal acquisition; symbol timing estimation stage; Jamming; OFDM; Receivers; Synchronization; Transmitters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
MILITARY COMMUNICATIONS CONFERENCE, 2012 - MILCOM 2012
Conference_Location :
Orlando, FL
ISSN :
2155-7578
Print_ISBN :
978-1-4673-1729-0
Type :
conf
DOI :
10.1109/MILCOM.2012.6415749
Filename :
6415749
Link To Document :
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