Windowed multicarrier systems with minimum spectral leakage
Journal
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
Journal Volume
4
Pages
IV-749-IV-752
Date Issued
2004
Author(s)
Abstract
The transmitter output of OFDM or DMT systems with a rectangular window is known to have large spectral sidelobes. Windowing and pulse shaping have been proposed to reduce spectral leakage in the literature, If no extra cyclic prefix is available, windowing at the transmitter requires additional post-processing equalization at the receiver. In this paper we will design optimal windows with minimum spectral leakage. Moreover, we will show that the post processing will affect SNR at the receiver and the resulting SNR can be given in a closed form. Furthermore, we will demonstrate we can have a good trade-off between SNR and spectral leakage.
Other Subjects
Broadcasting; Communication channels (information theory); Gaussian noise (electronic); Matrix algebra; Optimization; Signal interference; Signal to noise ratio; Transceivers; Transmitters; White noise; Digital audio broadcasting; Multicarrier systems; Spectral leakage; Orthogonal frequency division multiplexing
Type
conference paper