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Reseach Article

PAPR Reduction for OFDM System Using Companding Technique

Published on March 2012 by Bahubali K. Shiragapur, Uday Wali
International Conference in Computational Intelligence
Foundation of Computer Science USA
ICCIA - Number 9
March 2012
Authors: Bahubali K. Shiragapur, Uday Wali
741ffb4b-1833-4f1c-a8a4-ced9e2321742

Bahubali K. Shiragapur, Uday Wali . PAPR Reduction for OFDM System Using Companding Technique. International Conference in Computational Intelligence. ICCIA, 9 (March 2012), 41-45.

@article{
author = { Bahubali K. Shiragapur, Uday Wali },
title = { PAPR Reduction for OFDM System Using Companding Technique },
journal = { International Conference in Computational Intelligence },
issue_date = { March 2012 },
volume = { ICCIA },
number = { 9 },
month = { March },
year = { 2012 },
issn = 0975-8887,
pages = { 41-45 },
numpages = 5,
url = { /proceedings/iccia/number9/5158-1070/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 International Conference in Computational Intelligence
%A Bahubali K. Shiragapur
%A Uday Wali
%T PAPR Reduction for OFDM System Using Companding Technique
%J International Conference in Computational Intelligence
%@ 0975-8887
%V ICCIA
%N 9
%P 41-45
%D 2012
%I International Journal of Computer Applications
Abstract

Communication is one of the important aspects of life to exchange their information and thoughts. With the advancement in age and user's growing demands, there has been rapid exponential growth in the field of communications. Signals, which were initially sent in the analog domain, are being sent more and more in the digital domain these days. For better transmission, even single – carrier waves are being replaced by multi – carriers. Multi – carrier systems like CDMA and OFDM (Orthogonal Frequency Division Multiplex) are now – a – days being implemented commonly. One of the challenging issues for Orthogonal Frequency Division Multiplexing (OFDM) system is its high Peak-to- Average Power Ratio (PAPR). That is the time domain OFDM signal which is a sum of several sinusoids leads to high peak to average power ratio (PAPR). Numbers of techniques have been proposed in the literature for reducing the PAPR in OFDM systems. In this paper the modified companding technique is proposed for reducing the PAPR, effect of ? and PR (Peak- Ratio) are discussed.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Complementary cumulative distribution function (CCDF) high power amplifier (HPA) Orthogonal Frequency Division Multiplexing (OFDM) Peak-to-Average Power Ratio (PAPR)