Abstract
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.
Original language | English |
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Title of host publication | Proceedings of the IEEE 75th Vehicular Technology Conference (VTC Spring 2012), 6-9 May 2012, Yokohama, Japan |
Place of Publication | Piscataway |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 1-6 |
DOIs | |
Publication status | Published - 2012 |
Event | 75th Vehicular Technology Conference (VTC 2012-Spring) - Yokohama, Japan Duration: 6 May 2012 → 9 May 2012 Conference number: 75 |
Conference
Conference | 75th Vehicular Technology Conference (VTC 2012-Spring) |
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Abbreviated title | VTC 2012-Spring |
Country/Territory | Japan |
City | Yokohama |
Period | 6/05/12 → 9/05/12 |