Paper published in a journal (Scientific congresses, symposiums and conference proceedings)
Generalized direct predistortion with adaptive crest factor reduction control
Piazza, Roberto; Bhavani Shankar, M. R.; Ottersten, Björn
2015In Proceedings of ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing, 2015-August, p. 3242-3246
Peer reviewed
 

Files


Full Text
GENERALIZED DIRECT PREDISTORTION.pdf
Publisher postprint (680.31 kB)
Download

All documents in ORBilu are protected by a user license.

Send to



Details



Keywords :
Clipping; Crest Factor Reduction; Direct Estimation; Least Mean Squares; Signal predistortion; Volterra
Abstract :
[en] Efficient power amplification is inherently a non linear operation that introduces unwanted interference in the amplified signal. Strong inter-symbol interference is generated when the amplifier non linearity is combined with channel memory effects. Further, signals with very high peak to average power ratio, typical of multiple carrier systems, are even more sensitive to the non linearities resulting in severe distortion effects. Signal pre-clipping (crest factor reduction) and predistortion are conventional countermeasure techniques to reduce the generated non linear distortion and improve power and spectral efficiency. In this work, novel optimization methods for predistortion and pre-clipping are analytically derived for a general non-linear communication channel with memory. A combined architecture in which crest factor reduction is followed by signal predistortion is proposed and the parameters are estimated resorting to iterative algorithms based on least squares method. Performance evaluation of the estimation techniques shows the effectiveness of the derived algorithms and significant gain compared to previously known methods. © 2015 IEEE.
Disciplines :
Electrical & electronics engineering
Identifiers :
eid=2-s2.0-84946062356
Author, co-author :
Piazza, Roberto ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Bhavani Shankar, M. R.;  Interdisciplinary Centre for Security, Reliability and Trust, SnT, University of Luxembourg, Luxembourg
Ottersten, Björn ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
External co-authors :
yes
Language :
English
Title :
Generalized direct predistortion with adaptive crest factor reduction control
Publication date :
2015
Event name :
40th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2015
Event date :
19 April 2014 through 24 April 2014
Audience :
International
Journal title :
Proceedings of ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
ISSN :
1520-6149
Publisher :
Institute of Electrical and Electronics Engineers Inc.
Volume :
2015-August
Pages :
3242-3246
Peer reviewed :
Peer reviewed
Funders :
The Institute of Electrical and Electronics Engineers Signal Processing Society
Commentary :
116006 9781467369978
Available on ORBilu :
since 26 March 2016

Statistics


Number of views
102 (4 by Unilu)
Number of downloads
244 (5 by Unilu)

Scopus citations®
 
7
Scopus citations®
without self-citations
5

Bibliography


Similar publications



Contact ORBilu