Theoretical analysis and performance of the decorrelating detector for DS-CDMA signals in nonlinear channels

Authors:
L. Rugini;P. Banelli;S. Cacopardi
Affiliations:
Dipt. di Ingegneria Elettronica e dell'Informazione, Univ. di Perugia, Italy;-;-
Venue:
IEEE Transactions on Wireless Communications
Year:
2004

Citing 0
Cited 3

Analysis of BER performance in presence of nonlinear distortion due to PD-HPA in downlink DS-CDMA signals

IEEE Communications Letters
Probability of error of linearly modulated signals with Gaussian cochannel interference in maximally correlated Rayleigh fading channels

EURASIP Journal on Wireless Communications and Networking - Special issue on interference management in wireless communication systems: theory and applications
An efficient measure for nonlinear distortion severity due to HPA in downlink DS-CDMA signals

EURASIP Journal on Wireless Communications and Networking

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Abstract

We analyze the effects of the nonlinear distortions, introduced by the transmitting high-power amplifier (HPA), on the performance of the linear decorrelating multiuser detector in direct-sequence code-division multiple-access (DS-CDMA) downlink systems. By assuming and motivating the Gaussian distribution of the nonlinear distortion noise, the symbol-error rate (SER) and the total degradation (TD) has been derived theoretically in additive white Gaussian noise (AWGN) and frequency-flat Rayleigh fading channels. Simulation results show that the analytical model is quite accurate in many scenarios.