Title :
Performance of dual-channel demodulator for LEO satellite CDMA communications
Author :
Kajiwara, Akihiro
Author_Institution :
Tech. R&D Inst., JDA, Tokyo, Japan
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;
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
DOI :
10.1109/ICC.1995.524523
