Title :
Diversity with high bit-rate HF multi-tone modem
Author :
Vigier, Alain J. ; Mérel, Dominique ; Moreau, Olivier ; Bettler, Philippe
Author_Institution :
Thomson-CSF Commun., Gennevillers, France
Abstract :
Achieving high throughput under various channel conditions is a major and difficult goal in HF communications. Among the possible techniques to reach this goal is the use of spatial and polarisation diversity. This paper reports on real-time field experiments which have been conducted in order to evaluate the gain of diversity in conjunction with reception of a high bit-rate (9600 b/s) HF multi-tone waveform. Results are presented that show how diversity improves the performance (BER). The behaviour of the reception system according to the time of the day is also shown
Keywords :
HF radio propagation; diversity reception; electromagnetic wave polarisation; error statistics; ionospheric electromagnetic wave propagation; modems; 9600 bit/s; BER; HF communications; HF multi-tone waveform reception; channel conditions; diversity gain; high bit-rate HF multi-tone modem; high throughput; ionospheric transmissions; performance; polarisation diversity; real-time field experiments; reception system; spatial diversity; Bit error rate; Bit rate; Diversity reception; Hafnium; Jamming; Maximum likelihood decoding; Modems; Polarization; Receiving antennas; Signal processing;
Conference_Titel :
Military Communications Conference, 1998. MILCOM 98. Proceedings., IEEE
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-4506-1
DOI :
10.1109/MILCOM.1998.722154
