SER Performance of Linear Multiuser Detectors for DS-CDMA Downlink With Transmitter Nonlinear Distortions
| Autor: | Paolo Banelli, S. Cacopardi, Luca Rugini |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Engineering
Direct-sequence code-division multiple-access (DS-CDMA) downlink multiuser detectors nonlinear distortions Computer Networks and Communications Code division multiple access business.industry Rake Detector Aerospace Engineering Multiuser detection Spread spectrum Nonlinear distortion Automotive Engineering Electronic engineering Fading Electrical and Electronic Engineering business Computer Science::Information Theory Phase-shift keying |
| Zdroj: | IEEE Transactions on Vehicular Technology. 53:992-1000 |
| ISSN: | 0018-9545 |
| DOI: | 10.1109/tvt.2004.830964 |
| Popis: | The aim of this paper is to examine the effects of the nonlinear distortions introduced by the high-power amplifier in the downlink of direct-sequence code-division multiple-access systems. By modeling the nonlinear distortion effects as a signal power loss and a superimposed colored Gaussian noise, we derive the symbol-error rate (SER) of the minimum mean-squared error (mmse) detector in additive white Gaussian noise channels. Successively, we make use of a semianalytical approach to obtain the SER performance of linear multiuser detectors, such as the RAKE, decorrelator, and mmse receiver, in frequency-selective fading channels. Simulation results confirm the effectiveness of the theoretical approach. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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