Title :
Turbo Equalization with Cancellation of Nonlinear Distortion Effects for CP-Assisted and Zero-Padded MC-CDMA Signals
Author :
Dinis, R. ; Silva, P. ; Araujo, T.
Author_Institution :
Tech. Univ. of Lisbon, Lisbon
Abstract :
We consider MC-CDMA schemes, with reduced envelope fluctuations. Both CP-assisted (cyclic prefix) and ZP (zero-padded) MC-CDMA schemes are addressed. We develop turbo FDE (frequency-domain equalization) schemes, combined with cancelation of nonlinear distortion effects. The proposed turbo receivers allow significant performance improvements at low and moderate SNR, even when the transmitted signals have reduced envelope fluctuations.
Keywords :
code division multiple access; equalisers; frequency-domain analysis; nonlinear distortion; receivers; CP-assisted zero-padded MC-CDMA signals; cyclic prefix; frequency-domain equalization; multicarrier coded division multiple access; nonlinear distortion effect cancellation; turbo FDE; turbo receivers; Decision feedback equalizers; Filtering; Fluctuations; Frequency estimation; Iterative decoding; Multiaccess communication; Multicarrier code division multiple access; Nonlinear distortion; OFDM modulation; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC-2007 Fall. 2007 IEEE 66th
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-0263-2
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2007.255
