Harvanek, M., Marsalek, R., Kral, J., Gotthans, T., Blumenstein, J., Pospisil, M., & Rupp, M. (2020). Adjacent Channel Interference Cancellation in FDM Transmissions. IEEE Transactions on Circuits and Systems I: Regular Papers, 67(12), 5417–5428. https://doi.org/10.1109/tcsi.2020.2995350
IEEE Transactions on Circuits and Systems I: Regular Papers
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ISSN:
1549-8328
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Datum (veröffentlicht):
2020
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Umfang:
12
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Peer Reviewed:
Ja
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Keywords:
Electrical and Electronic Engineering; interference cancellation; Generalized frequency division multiplex; nonlinear power amplifier; channelestimation error; out-of-band emission; over-the-air estimation
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Abstract:
Interference between users in adjacent channelsnegatively affects throughput of mobile networks. In this paperwe aim at cancellation of interference caused by a nonlinearpower amplifier in a generalized orthogonal frequency divisionsystem. We propose an interference cancellation method tosubtract these out-of-band emissions from the received signal.In contrast to state-of-the-art methods, our proposed methodemploys over-the-air estimation of power amplifier model para-meters together with a particular frequency domain filteringmethod that allows to generate the required training data. Theproposed interference cancellation method is also verified by anexperiment on a software defined radio test bench.
