4 Scopus citations

Abstract

This paper describes the development of a distributed estimation algorithm for amplify-and-forward sensor transmissions with realistic nonlinear amplifier models at the sensors. Specifically, an algorithm is developed that enables distributed estimation with amplifiers operating in the non-linear class AB region. In this system, a digital predistortion scheme is utilized to fit an amplifier to a mathematically tractable, known nonlinearity that is close to the compression characteristics of the amplifier. We show using this scheme has two benefits over linear amplifier operation: improved transmitter efficiency and reduced sensitivity to heavy-tailed distributions due to the soft saturation. The amplifier characteristics and predistortion methods are presented as part of the Java-DSP software package.

Original languageEnglish (US)
Title of host publicationConstantinides International Workshop on Signal Processing, CIWSP 2013
Edition1
DOIs
StatePublished - Jul 18 2013
EventConstantinides International Workshop on Signal Processing, CIWSP 2013 - London, United Kingdom
Duration: Jan 25 2013Jan 25 2013

Publication series

NameIET Seminar Digest
Number1
Volume2013

Other

OtherConstantinides International Workshop on Signal Processing, CIWSP 2013
CountryUnited Kingdom
CityLondon
Period1/25/131/25/13

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Santucci, R., Banavar, M. K., Spanias, A., & Tepedelenlioglu, C. (2013). Estimation for amplify-and-forward transmissions with nonlinear amplifiers. In Constantinides International Workshop on Signal Processing, CIWSP 2013 (1 ed.). (IET Seminar Digest; Vol. 2013, No. 1). https://doi.org/10.1049/ic.2013.0021