Title :
Performance analysis of synchronous DS-CDMA in mobile nonlinear satellite channel
Author :
Mayhoub, M. ; El Zanfally, R. ; El Hennawy, H. ; Mahrous, S.
Author_Institution :
Fac. of Eng., Ain Shams Univ., Cairo, Egypt
Abstract :
Trends in digital communications are opening up commercial applications to code division multiple access (CDMA). The paper presents an analytical model for the effects of nonlinearities and mobile channel on the performance of synchronous QPSK code division multiple-access (CDMA) systems. The combined effect of both the travelling wave tube (TWT) power amplifier exhibiting AM-to-AM and AM-to-PM conversion, down-link thermal noise and the multipath fading mobile channel are taken into consideration in the analysis. System performance in terms of the error probability is explored
Keywords :
code division multiple access; digital radio; error statistics; fading channels; mobile satellite communication; multipath channels; power amplifiers; quadrature phase shift keying; spread spectrum communication; synchronisation; transponders; travelling wave amplifiers; AM-to-AM conversion; AM-to-PM conversion; code division multiple access; digital communications; down-link thermal noise; error probability; mobile channel; mobile nonlinear satellite channel; multipath fading mobile channel; nonlinearities; performance analysis; synchronous DS-CDMA; synchronous QPSK code division multiple-access; travelling wave tube power amplifier; AWGN; Additive white noise; Fading; Multiaccess communication; Performance analysis; Power system modeling; Quadrature phase shift keying; Satellites; Testing; Transmitters;
Conference_Titel :
Radio Science Conference, 1998. NRSC '98. Proceedings of the Fifteenth National
Conference_Location :
Cairo
Print_ISBN :
0-7803-5121-5
DOI :
10.1109/NRSC.1998.711473
