Learn More
In orthogonal frequency division multiplexing (OFDM) systems, the subcarriers are generated by an inverse discrete Fourier transform (DFT). OFDM has a relatively slow spectral rolloff. In the literature, the spectra of these subcarriers are often represented by a sequence of sinc functions with the same polarity. This does not explain the intercarrier(More)
A technique that uses clipping has beenrecentlyproposedtoreducethe peak-to-average-power ratio (PAPR) in orthogonal frequency divisional multiplexing (OFDM) signals.Thetechniqueusesadiscrete Fourier transform(DFT)basedfiltertoreduceout-of-band (OOB) power after the interpolated baseband OFDM signal is clipped. In this paper, the technique is applied to(More)
The probability hypothesis density (PHD) filter is a practical alternative to the optimal Bayesian multi-target filter based on random finite sets. It propagates the PHD function, the first order moment of the posterior multi-target density, from which the number of targets as well as their individual states can be extracted. Furthermore, the sequential(More)
In the last years wireless communications have experienced a fast growth due to the high mobility that they allow. However, wireless channels have some disadvantages, like multi-path fading, that make them difficult to deal with. A modulation that efficiently deals with selective fading channels is OFDM. An important disadvantage of OFDM systems is their(More)
  • 1