Built-in EVM measurement for OFDM transceivers using all-digital DFT

Ender Yilmaz, Afsaneh Nassery, Sule Ozev, Erkan Acar

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

3 Scopus citations

Abstract

In this paper, we present a technique to enable accurate built-in measurement of EVM for OFDM transceivers. This measurement technique only relies on the decoded bit pattern, and does not require any additional test equipment. In order to accurately predict EVM without using analog signal analysis, we intentionally code more symbols into the bit pattern in test mode, which enables the decoding of IQ signals in finer granularity. We present an innovative DFT technique to measure EVM on-chip with very little overhead. We also provide an analytical framework to determine how the DFT technique needs to be implemented. Experimental results using MATLAB simulations and hardware measurements confirm the accuracy of the proposed technique.

Original languageEnglish (US)
Title of host publicationInternational Test Conference, ITC 2009 - Proceedings
DOIs
StatePublished - Dec 15 2009
EventInternational Test Conference, ITC 2009 - Austin, TX, United States
Duration: Nov 1 2009Nov 6 2009

Publication series

NameProceedings - International Test Conference
ISSN (Print)1089-3539

Other

OtherInternational Test Conference, ITC 2009
CountryUnited States
CityAustin, TX
Period11/1/0911/6/09

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Yilmaz, E., Nassery, A., Ozev, S., & Acar, E. (2009). Built-in EVM measurement for OFDM transceivers using all-digital DFT. In International Test Conference, ITC 2009 - Proceedings [5355625] (Proceedings - International Test Conference). https://doi.org/10.1109/TEST.2009.5355625