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In this paper, a novel all phase DFT filter bank (APFB) for multi-carrier modulation is presented and the efficient implementation structure is derived. A narrowband APDFT prototype filter exhibits higher stop attenuation and an M-band APFB with the strict power complementarities can be easily achieved by designing the frequency response vectors. The impulse response of the proposed APFB is also real...
This letter presents the effects of frequency offset to orthogonal frequency division multiplexing systems based on fractional Fourier transform (FRFT-OFDM) in time-frequency selective fading channels. FRFT-OFDM systems generalize the OFDM systems based on discrete Fourier transform by the deployment of FRFT. The expressions of signal-to-interference ratio (SIR) due to ICI are derived in different...
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