Research Article
TV White Spaces Exploitation for Signal Distribution
@INPROCEEDINGS{10.1007/978-3-642-30419-4_6, author={Mauro Fadda and Maurizio Murroni and Vlad Popescu and Vlad Stoianovici}, title={TV White Spaces Exploitation for Signal Distribution}, proceedings={Mobile Multimedia Communications. 7th International ICST Conference, MOBIMEDIA 2011, Cagliari, Italy, September 5-7, 2011, Revised Selected Papers}, proceedings_a={MOBIMEDIA}, year={2012}, month={5}, keywords={Signal processing for transmission Dynamic spectrum access TV white spaces spectrum sensing}, doi={10.1007/978-3-642-30419-4_6} }- Mauro Fadda
Maurizio Murroni
Vlad Popescu
Vlad Stoianovici
Year: 2012
TV White Spaces Exploitation for Signal Distribution
MOBIMEDIA
Springer
DOI: 10.1007/978-3-642-30419-4_6
Abstract
The new spectrum regulation policies for dynamic spectrum access, especially those concerning the use of the white spaces in the Digital Terrestrial Television (DTT) bands, arise the need for fast and reliable signal identification and classification methods. In this paper we present a two-stage identification method for signals in the white spaces, using combined energy detection and feature detection. The band of interest is divided by means of the Discrete Wavelet Packet Transformation (DWPT) in sub-bands where the signal power is calculated. Modulation classifiers taking into account the statistical parameters of the signal in the wavelet domain are used as features for identifying the modulation schemes, in this case specifically for the DVB-T broadcast standard. As a possible application we are considering an indoor short-range distribution system for video signals.