Title :
Wideband multi-carrier transmission for military HF communication
Author :
Nilsson, Jan E M ; Giles, Timothy C.
Author_Institution :
Sweden´´s Defence Res. Establ., Linkoping, Sweden
Abstract :
The potential of multi-carrier, or orthogonal frequency division multiplexing (OFDM), for military HF communication is explored. In commercial OFDM systems a guard-time (or cyclic extension) is used to remove intersymbol interference (ISI). Furthermore, OFDM is normally used to support fairly high data rates. However, a robust stealth system is proposed. That is, the system has no guard-time and a high spreading factor (low data rate). A guard-time would simplify hostile detection of the transmitted signal. Finally, a Gaussian scrambler is tested
Keywords :
Gaussian noise; differential phase shift keying; encoding; frequency division multiplexing; intersymbol interference; military communication; white noise; AWGN; DBPSK; Gaussian scrambler; ISI removal; coding; commercial OFDM systems; cyclic extension; differential binary PSK; high data rates; high spreading factor; hostile detection; intersymbol interference; low data rate; military HF communication; multicarrier modulation; multipath parameters; orthogonal frequency division multiplexing; robust stealth system; transmitted signal; wideband multi-carrier transmission; Bandwidth; Distortion; Fading; Frequency division multiplexing; Hafnium; Intersymbol interference; Military communication; OFDM modulation; Robustness; Wideband;
Conference_Titel :
MILCOM 97 Proceedings
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4249-6
DOI :
10.1109/MILCOM.1997.646776
