Two and three inputs Widely Linear FRESH receivers for cancellation of a quasi-rectilinear interference with frequency offset

Abstract : Widely linear (WL) receivers can fulfill single antenna interference cancellation (SAIC) of one rectilinear (R) or quasi-rectilinear (QR) co-channel interference (CCI). The SAIC technology for QR signals has been shown to be less powerful than SAIC for R signals. To overcome this limitation, a SAIC/MAIC enhancement using three-inputs WL frequency-shift (FRESH) receiver has been introduced for QR signals. However, this receiver loses its efficiency for an interference having a residual frequency offset (FO) above a fraction of the baud rate. This may appear for airborne communications and it is the case for the inter-carrier interference of filter-bank based multicarrier waveforms using OQAM constellations which are candidate for 5G mobile networks. This paper extends the standard two-inputs SAIC/MAIC receiver and the three-inputs WL FRESH receiver for QR signals with FO. Analytical results and simulations are presented to study the impact of this FO on the performance of these receivers
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Submitted on : Wednesday, November 9, 2016 - 10:59:08 AM
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Rémi Chauvat, Jean-Pierre Delmas, Pascal Chevalier. Two and three inputs Widely Linear FRESH receivers for cancellation of a quasi-rectilinear interference with frequency offset. EUSIPCO 2016 : 24th European Signal Processing Conference, Aug 2016, Budapest, Hungary. pp.1398 - 1402, ⟨10.1109/EUSIPCO.2016.7760478⟩. ⟨hal-01394314⟩

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