Please use this identifier to cite or link to this item:
http://hdl.handle.net/11144/3735
Title: | Turbo Equalization with Cancelation of Nonlinear Distortion for CP-Assisted and Zero-Padded MC-CDM Schemes |
Authors: | Dinis, Rui Silva, Paulo Araújo, Teresa |
Keywords: | MC-CDM Zero-padded MC-CDM Turbo equalization Nonlinear distortion |
Issue Date: | Aug-2009 |
Publisher: | IEEE |
Citation: | R. Dinis, P. Silva, T. Araújo, Turbo Equalization with Cancelation of Nonlinear Distortion for CP-Assisted and Zero-Padded MC-CDM Schemes, IEEE Trans. on Communications, Vol. 57, No. 7, pp. 2185 - 2189, August, 200 |
Abstract: | In this paper, we consider MC-CDM schemes (MultiCarrier Code Division Multiplexing) where clipping techniques are employed to reduce the envelope fluctuations of the transmitted signals. Both CP-assisted (Cyclic Prefix) and ZP (Zero- Padded) MC-CDM schemes are studied. We develop frequencydomain turbo equalizers combined with an iterative estimation and cancelation of nonlinear distortion effects, with relatively low complexity since they allow FFT-based (Fast Fourier Transform), frequency-domain implementations. Our performance results show that the proposed receivers allow significant performance improvements at low and moderate SNR (Signal-to-Noise Ratio), even when strongly nonlinear transmitters are employed. The receiver for ZP MC-CDM is of special interest for systems where the duration of the channel impulse response is not a small fraction of the duration of the MC-CDM blocks, being suitable to MC-CDM systems with very large blocks (hundreds or even thousands of subcarriers), since they do not require the inversion nor the multiplication of large matrixes |
Peer Reviewed: | yes |
URI: | http://hdl.handle.net/11144/3735 |
metadata.dc.identifier.doi: | 10.1109/VETECF.2007.255 |
ISSN: | 0090-6778 |
Publisher Version: | https://ieeexplore.ieee.org/document/5201002/ |
Appears in Collections: | DCT - Artigos/Papers |
Files in This Item:
File | Description | Size | Format | |
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TCOM-07-0485.dvi.pdf | 90,96 kB | Adobe PDF | View/Open |
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