New studies about a high data rate HF parallel modem

Author

Coutolleau, Mare ; Vila, Pierre ; Merel, Dominque ; Pirez, Didier ; Mouy, Benoit

Author_Institution

Thomson-CSF Commun., Gennevilliers, France

Volume

2

fYear

1998

fDate

18-21 Oct 1998

Firstpage

381

Abstract

This paper presents a new 9600 bps high data rate HF modem. This modem uses a coherent parallel modulation thanks to the addition in the waveform of known pilot tones, the channel as well as the the noise on each tone can be estimated during demodulation. The coding scheme uses the turbo-code principle. This new coherent parallel modem offers an interesting and extremely competitive solution for a high data rate HF modem in a frequency selective fading channel

Keywords

demodulation; fading channels; modems; modulation coding; noise; quadrature amplitude modulation; quadrature phase shift keying; radio equipment; turbo codes; 9600 bit/s; QAM; QPSK; coding; coherent parallel modem; coherent parallel modulation; demodulation; frequency selective fading channel; high data rate HF parallel modem; modulation coding; noise; pilot tones; recursive systematic code; turbo-code; waveform; Absorption; Bit rate; Demodulation; Fading; Frequency shift keying; Hafnium; History; Intersymbol interference; Modems; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1998. MILCOM 98. Proceedings., IEEE

Conference_Location

Boston, MA

Print_ISBN

0-7803-4506-1

Type

conf

DOI

10.1109/MILCOM.1998.722157

Filename

722157