Performance of dual-channel demodulator for LEO satellite CDMA communications

Author

Kajiwara, Akihiro

Author_Institution

Tech. R&D Inst., JDA, Tokyo, Japan

Volume

3

fYear

1995

fDate

18-22 Jun 1995

Firstpage

1875

Abstract

New frequency bands have been allocated to the mobile satellite service in the range of 1.6 to 2.5 GHz, for the provision of personal communication services to users equipped with hand-held terminals. The LEO satellites should be capable of providing a wide of communications services to users at every point on the world This paper presents a dual-channel PSK demodulator for LEO satellite DS-SS CDMA communications providing anti-Doppler capability and its spectral efficiency is investigated by comparing with a coherent PSK demodulator

Keywords

Doppler effect; code division multiple access; demodulation; demodulators; mobile satellite communication; phase shift keying; pseudonoise codes; spread spectrum communication; telecommunication channels; 1.6 to 2.5 GHz; DS-SS CDMA communications; LEO satellite; UHF; antiDoppler capability; coherent PSK demodulator; dual-channel PSK demodulator; frequency allocation; frequency bands; hand-held terminals; mobile satellite service; personal communication services; spectral efficiency; Artificial satellites; Decoding; Degradation; Demodulation; Frequency; Low earth orbit satellites; Multiaccess communication; Phase locked loops; Phase shift keying; Satellite broadcasting;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1995. ICC '95 Seattle, 'Gateway to Globalization', 1995 IEEE International Conference on

Conference_Location

Seattle, WA

Print_ISBN

0-7803-2486-2

Type

conf

DOI

10.1109/ICC.1995.524523

Filename

524523