Analytical modeling for EVM in OFDM transmitters including the effects of IIP3, I/Q imbalance, noise, AM/AM and AM/PM distortion

Afsaneh Nassery, Sule Ozev, Mustapha Slamani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

In this paper, we present a method for accurately calculating the Error Vector Magnitude (EVM) of OFDM transmitters based on their IQ mismatch, IIP3, noise, AM/AM and AM/PM distortion. The effects of these impairments are correlated. Thus, modeling and analyzing them in isolation results in large errors. We derive the analytical relation of the received symbol when all types of impairments are present at once and compute EVM based on this overall relation. This method helps test engineers to compute the EVM based on already measured parameters and eliminates the need to develop and set-up EVM measurements. Simulations and hardware measurements show that this calculation can be done with less than 1% error for a large range of EVM values. This error level has been shown to be within the uncertainty bounds of EVM measurements.

Original languageEnglish (US)
Title of host publicationProceedings - 2013 18th IEEE European Test Symposium, ETS 2013
DOIs
StatePublished - Sep 9 2013
Event2013 18th IEEE European Test Symposium, ETS 2013 - Avignon, France
Duration: May 27 2013May 30 2013

Publication series

NameProceedings - 2013 18th IEEE European Test Symposium, ETS 2013

Other

Other2013 18th IEEE European Test Symposium, ETS 2013
CountryFrance
CityAvignon
Period5/27/135/30/13

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ASJC Scopus subject areas

  • Software

Cite this

Nassery, A., Ozev, S., & Slamani, M. (2013). Analytical modeling for EVM in OFDM transmitters including the effects of IIP3, I/Q imbalance, noise, AM/AM and AM/PM distortion. In Proceedings - 2013 18th IEEE European Test Symposium, ETS 2013 [6569361] (Proceedings - 2013 18th IEEE European Test Symposium, ETS 2013). https://doi.org/10.1109/ETS.2013.6569361