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Sociedade Brasileira de Telecomunicações

On the Error Performance of Precoded Filterbank Multicarrier Systems Transmitting Through Highly Frequency Selective Channels


When linear precoding is applied to filterbank multicarrier systems, a combination of all subcarriers is transmitted, minimizing the effect of a deep fade in a subcarrier while also reducing frequency offset sensibility and the peakto- average power ratio. However, their equalization becomes even more challenging than usual. In this paper, we present an analysis on the effect of multitap subchannel equalizers in precoded filterbank multicarrier systems transmitting through highly frequency selective channels. It is possible to see that subchannel equalizers employing more than three taps allow for a negligible increase in the error performance.

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