Pilot-aided coherent uplink for mobile satellite CDMA networks

Author

Corazza, Giovanni E. ; De Gaudenzi, Riccardo

Author_Institution

Dept. of Electron. Eng., Rome Univ., Italy

Volume

47

Issue

5

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

773

Lastpage

783

Abstract

A pilot-aided coherent uplink transmission scheme is proposed for mobile satellite communications at L-band. The scheme is designed to enhance link performance as compared to coded noncoherent M-ary orthogonal modulation, while maintaining small envelope fluctuations and low complexity. A rigorous analysis is performed for the proposed technique, when used in conjunction with a direct-sequence code-division multiple-access convolutionally encoded binary phase shift keying link, in a Rice-fading channel with satellite diversity. The pilot-aided scheme has been extensively simulated, accounting for finite interleaving in slow fading and nonideal carrier frequency recovery. The results show a significant performance gain with respect to noncoherent schemes designed for similar links, which goes up to 1.8 dB for 9.6 kb/s services with slow moving users exploiting dual-satellite diversity

Keywords

Rician channels; code division multiple access; convolutional codes; diversity reception; mobile satellite communication; modulation coding; phase shift keying; radio links; radio networks; 9.6 kbit/s; L-band; Rice-fading channel; coded noncoherent M-ary orthogonal modulation; convolutionally encoded binary phase shift keying; direct-sequence code-division multiple-access; dual-satellite diversity; finite interleaving; link performance; low complexity; mobile satellite CDMA networks; nonideal carrier frequency recovery; performance gain; pilot-aided coherent uplink transmission; satellite diversity; simulation; slow fading; slow moving users; small envelope fluctuations; Binary phase shift keying; Convolutional codes; Fading; Fluctuations; Interleaved codes; L-band; Modulation coding; Multiaccess communication; Performance analysis; Satellite communication;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.768771

Filename

768771