Suppression of constant modulus interference in multimode transceivers by closed-loop tuning of a nonlinear circuit

H. Habibi, E.J.G. Janssen, Y. Wu, J.W.M. Bergmans, P.G.M. Baltus

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

6 Citaten (Scopus)
1 Downloads (Pure)

Samenvatting

In multimode transceivers, the transmitter for one communication standard may induce a large interferer in the receiver for another standard. To linearly suppress this interferer, which can be several orders of magnitude larger than the desired received signal, the receiver should have a very large linear dynamic range, resulting in excessive power consumption. Many of potential interferers have a constant modulus modulation. Baier and Friederichs introduced a tuneable nonlinear circuit which can suppress a constant modulus interferer without excessive power consumption. Since an open- loop tuning method is used, the worst- case interference suppression was strongly limited by inaccuracy of circuit components. To alleviate this limitation, we propose a closed- loop tuning method that exploits the locally available interference as side information. Our analysis shows that the proposed method can strongly suppress the interferer while a symbol error rate performance close to that of an exactly linear receiver is achieved. Simulation results for a practical scenario confirm this analysis, and promise much smaller power consumption than for linear interference suppression approaches.
Originele taal-2Engels
TitelProceedings of the IEEE 75th Vehicular Technology Conference (VTC Spring 2012), 6-9 May 2012, Yokohama, Japan
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's1-6
DOI's
StatusGepubliceerd - 2012
Evenement75th Vehicular Technology Conference (VTC 2012-Spring) - Yokohama, Japan
Duur: 6 mei 20129 mei 2012
Congresnummer: 75

Congres

Congres75th Vehicular Technology Conference (VTC 2012-Spring)
Verkorte titelVTC 2012-Spring
LandJapan
StadYokohama
Periode6/05/129/05/12
AnderVTC spring

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