Joint turbo equalization and cancelation of nonlinear distortion effects in MC-CDMA signals

In this paper, we consider low-PMEPR (Peak-to-Mean Envelope Power Ratio) MC-CDMA (Multicarrier Coded Division Multiple Access) schemes. We develop frequencydomain turbo equalizers combined with an iterative estimation and cancellation of nonlinear distortion effects. Our receivers have relatively lo...

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Bibliographic Details
Main Author: Dinis, Rui (author)
Other Authors: Silva, Paulo (author), Araújo, Teresa (author)
Format: article
Language:eng
Published: 2009
Subjects:
Telecomunicações
Comunicações sem fios
Wireless
MUD
CDMA
Igualização no domínio da frequência
621.39
Online Access:http://hdl.handle.net/10400.1/190
Country:Portugal
Oai:oai:sapientia.ualg.pt:10400.1/190
Description
Summary:In this paper, we consider low-PMEPR (Peak-to-Mean Envelope Power Ratio) MC-CDMA (Multicarrier Coded Division Multiple Access) schemes. We develop frequencydomain turbo equalizers combined with an iterative estimation and cancellation of nonlinear distortion effects. Our receivers have relatively low complexity, since they allow FFT-based (Fast Fourier Transform) implementations. The proposed turbo receivers allow significant performance improvements at low and moderate SNR (Signal-to-Noise Ratio), even when a low-PMEPR MC-CDMA transmission is intended.

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