Title :
Frequency-hopped spread spectrum in the presence of a follower partial-band jammer
Author :
Hassan, Amer A. ; Stark, Wayne E. ; Hershey, John E.
Author_Institution :
GE Corp. Res. & Dev. Center, Schenectady, NY, USA
fDate :
7/1/1993 12:00:00 AM
Abstract :
A countermeasure to a partial-band follower jammer is proposed for frequency-hopped spread-spectrum communications. This technique randomizes the transmission technique used by the transmitter (and receiver). Either the information is carried by M tones which are transmitted in a frequency slot, or by M frequency slots which contain signal energy. As a counter-countermeasures, the jammer randomizes between jamming the same frequency slot being used by the communicator, or jamming a subset of the slots not being used by the communicator. The performance for randomized strategies for the communicator and jammer is investigated. It is shown that the proposed technique enhances the system´s performance
Keywords :
frequency agility; jamming; spread spectrum communication; counter-countermeasures; frequency slot; frequency-hopped spread-spectrum communications; partial-band follower jammer; randomized strategies; receiver; signal energy; system performance; transmitter; Bandwidth; Fading; Frequency synthesizers; Gaussian noise; Jamming; Military communication; Protection; Signal to noise ratio; Spread spectrum communication; Transmitters;
Journal_Title :
Communications, IEEE Transactions on