Title :
4QAM-CDMA transmission over satellite mobile channels in the presence of nonlinear distortions and Rayleigh fading
Author :
Rahman, Q.M. ; Ibnkahla, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Canada
Abstract :
This paper presents a theoretical analysis, for 4QAM code division multiple access (CDMA) system with nonlinear distortion, in terms of average bit error rate (BER) performance. The study considers slowly Rayleigh fading frequency selective satellite channel equipped with a nonlinear amplifier. In this investigation, a simple correlator-type receiver structure is considered. Here, the influence of the output back-off (OBO) of the nonlinear amplifier and the number of users in the system are investigated.
Keywords :
Rayleigh channels; code division multiple access; mobile satellite communication; nonlinear distortion; quadrature amplitude modulation; radio receivers; CDMA transmission; QAM; Rayleigh fading frequency selective satellite channel; code division multiple access; correlator-type receiver structure; nonlinear amplifier; nonlinear distortions; output back-off; satellite mobile channels; Bit error rate; Fading; Multiaccess communication; Multiple access interference; Nonlinear distortion; Power amplifiers; Power system modeling; Quadrature amplitude modulation; Rayleigh channels; Satellites;
Conference_Titel :
Electrical and Computer Engineering, 2003. IEEE CCECE 2003. Canadian Conference on
Print_ISBN :
0-7803-7781-8
DOI :
10.1109/CCECE.2003.1226225
