Title :
Performance evaluation of a cellular CDMA system using RAKE receiver over frequency-selective fading channels
Author :
Mar, Jeich ; Chen, Hung-Yi
Author_Institution :
Dept. of Electr. Eng., Yuan-Ze Inst. of Technol., Shian, Taiwan
Abstract :
The effect of multipath fading on the performance of cellular code division multiple access (CDMA) using an ideal RAKE receiver is analyzed in this paper. A wide-sense stationary uncorrelated scattering (WSSUS) channel model and the coherent BPSK modulation with asynchronous direct-sequence (DS) spreading signal are assumed in the analysis. The average error probabilities for both the forward link and reverse link of the cellular CDMA system over frequency-selective fading channels are derived. The impact of imperfect power control on the performance of the cellular CDMA system is also investigated. The analytical results show that the performance of the cellular CDMA system degrades with an increase in the number of simultaneous users and the number of interfering cells. The performance degradation due to imperfect power control will increase with the variation range of the unfaded received amplitude for each user
Keywords :
cellular radio; code division multiple access; error statistics; fading; multipath channels; phase shift keying; power control; radio receivers; spread spectrum communication; telecommunication control; RAKE receiver; WSSUS channel model; asynchronous direct-sequence spreading; average error probabilities; cellular CDMA system; code division multiple acces; coherent BPSK modulation; degradation; forward link; frequency-selective fading channels; imperfect power control; interfering cell; multipath fading; performance; performance evaluation; reverse link; unfaded received amplitude; wide-sense stationary uncorrelated scattering channel model; Binary phase shift keying; Degradation; Fading; Multiaccess communication; Multipath channels; Performance analysis; Power control; Power system modeling; Scattering; Signal analysis;
Conference_Titel :
Information, Communications and Signal Processing, 1997. ICICS., Proceedings of 1997 International Conference on
Print_ISBN :
0-7803-3676-3
DOI :
10.1109/ICICS.1997.647160
