Title :
DS-CDMA coherent uplink for mobile satellite communications
Author :
Corazza, Giovanni E. ; De Gaudenzi, Riccardo
Author_Institution :
Dept. of Electron. Eng, Univ. of Rome Tor Vergata, Italy
Abstract :
A pilot-aided coherent up-link transmission scheme is proposed for mobile satellite communications at L-band. The scheme is designed to possess small envelope fluctuations and low complexity. A rigorous analysis is performed for the proposed technique, when used in conjunction with a DS-CDMA, convolutionally encoded BPSK link. The analysis is validated through extensive simulations, which in addition account for non-ideal AFC. The results show a significant performance gain with respect to non-coherent schemes designed for similar links, which goes up to 1.8 dB for slow moving users exploiting dual-satellite diversity
Keywords :
code division multiple access; mobile satellite communication; phase shift keying; satellite links; spread spectrum communication; DS-CDMA coherent uplink; L-band; convolutionally encoded BPSK link; dual-satellite diversity; low complexity; mobile satellite communications; performance gain; pilot-aided coherent up-link transmission scheme; slow moving users; small envelope fluctuations; Analytical models; Automatic frequency control; Binary phase shift keying; Diversity methods; Fluctuations; L-band; Multiaccess communication; Performance analysis; Performance gain; Satellite communication;
Conference_Titel :
Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on
Conference_Location :
Sun City
Print_ISBN :
0-7803-4281-X
DOI :
10.1109/ISSSTA.1998.722471
