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[MTB15a] Frequency domain CFO compensation for FBMC systemsRevue Internationale avec comité de lecture : Journal Signal Processing, vol. 114(Sept.2015), pp. 183-197, 2015Mots clés: radiocommunications,FBMC,OQAM,CFO,SIR
Résumé:
The frequency-domain compensation of the deleterious effects introduced by the residual
carrier frequency offset(CFO)still present on the received signal after rough time-domain
compensation in a filter bank multicarrier(FBMC)receiver is considered. The compensa-
tion method depends not only on the particular FBMC modulation technique but also on
the chosen receiver structure.The paper is dedicated to the case where the recently
proposed frequency-despreading receiver,one of the most promising solutions,is used in
the OFDM/OQAM transceiver.Specifically,this receiver exploits some samples of an
extended FFT and,as shown in the paper,it can nearly perfectly compensate the CFO
effects on the received signal by adapting the weights of the linear combination of the
considered samples. A detailed analysis of the frequency-despreading structure and of the
proposed CFO-compensation technique ispresented by using as performance measure the
signal-to-interference ratio and the bit-error-rate.
Equipe:
laetitia
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