Authors: Velimirović, Lazar 
Perić, Zoran
Stanković, Miomir 
Simić, Nikola
Vučić, Nikola
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: Design of quantizer for Laplacian source based on the probability density function approximation
Other Titles: Projektovanje kvantizera Laplasovog izvora zasnovano na aproksimaciji funkcije gustine verovatnoće
Journal: 20th Telecommunications Forum, TELFOR 2012 - Proceedings
First page: 807
Last page: 810
Conference: 20th Telecommunications Forum - TELFOR 2012, Belgrade, Serbia, November 20-22, 2012
Issue Date: 1-Dec-2012
Rank: M33
ISBN: 978-1-467-32984-2
DOI: 10.1109/TELFOR.2012.6419330
In this paper, piecewise linear approximation of the probability density function is done. On the basis of the obtained approximated probability density function, a companding quantizer is designed. The signal at the entrance of the companding quantizer is modeled by Laplacian probability density function. Performances of the proposed companding quantizer are estimated on the basis of comparison of calculated values of signal to quantization noise ratio and approximation error, with the calculated values that correspond to the model of piecewise uniform scalar quantizer, that is also proposed in this paper.
Keywords: Approximation of the probability density function | Piecewise uniform scalar quantizer | Piecewise linear scalar quantizer
Publisher: IEEE
Project: Development of new information and communication technologies, based on advanced mathematical methods, with applications in medicine, telecommunications, power systems, protection of national heritage and education 

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