Title :
A Spectrally Efficient Frequency Hopping Scheme
Author :
Ling, Qi ; Li, Tongtong
Author_Institution :
Michigan State Univ., East Lansing
Abstract :
Frequency hopping systems have been widely used in military communications to prevent hostile jamming, interception and detection. In traditional frequency hopping (FH) systems, hopping frequency selection at the transmitter end is controlled by a pseudo-random code sequence, and the receiver operates accordingly in exact synchronization with the transmitters hopping pattern. In an effort to meet the ever increasing requirement on information capacity and reduce the burden of synchronization, in this paper, an innovative message-driven frequency hopping (MDFH) system is proposed. By embedding part of information into the process of hopping frequency selection, the spectral efficiency of the FH system can be significantly improved. Quantitative analysis on the proposed scheme is presented to demonstrate its superior performance and enhanced security features.
Keywords :
channel capacity; frequency hop communication; military communication; random codes; random sequences; synchronisation; telecommunication security; hostile jamming; information capacity; message-driven frequency hopping system; military communication; pseudorandom code sequence; security feature; spectral efficiency; synchronization; Control systems; Fading; Frequency shift keying; Frequency synchronization; Frequency synthesizers; Information security; Jamming; Military communication; Radio transmitters; Spread spectrum communication;
Conference_Titel :
Information Sciences and Systems, 2007. CISS '07. 41st Annual Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
1-4244-1063-3
Electronic_ISBN :
1-4244-1037-1
DOI :
10.1109/CISS.2007.4298298