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The FFT and equalizer units are core components of OFDM receivers for multicarrier reception in consumer applications. This paper presents a novel FFT architecture with adaptive scaling and a new equalizer architecture circumventing the need for explicit arithmetic division. For the example of DVB-T COFDM terrestrial digital TV reception, the tradeoff between complexity and performance is investigated under relevant reception conditions.
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Fechtel et al. (1999) studied this question.
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