Joint transmitter and receiver IQ imbalance estimation and compensation for OFDM systems

I. Tai Lu, Jiang Chang

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

Abstract

In the presence of both transmitter (TX) and receiver (RX) IQ imbalances, the TX/RX IQ imbalances and channel fading are coupled together. Therefore, one needs to solve a set of highly nonlinear equations for estimating the TX/RX IQ imbalance parameters and channel transfer functions at subcarriers in OFDM systems. In this paper, a novel joint TX/RX IQ imbalance estimation and compensation scheme is proposed. By taking advantage of the frequency-selective channel fading, the TX/RX IQ imbalance parameters and channel transfer functions can be decoupled and estimated sequentially. Simulation results demonstrate that the proposed scheme can effectively estimate and compensate the TX/RX IQ imbalances in OFDM systems.

Original languageEnglish (US)
Title of host publication2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest
Pages476-479
Number of pages4
DOIs
StatePublished - 2010
Event2010 IEEE Radio and Wireless Symposium, RWW 2010 - New Orleans, LA, United States
Duration: Jan 10 2010Jan 14 2010

Publication series

Name2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest

Other

Other2010 IEEE Radio and Wireless Symposium, RWW 2010
CountryUnited States
CityNew Orleans, LA
Period1/10/101/14/10

Keywords

  • IQ imbalance
  • OFDM

ASJC Scopus subject areas

  • Computer Networks and Communications

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  • Cite this

    Lu, I. T., & Chang, J. (2010). Joint transmitter and receiver IQ imbalance estimation and compensation for OFDM systems. In 2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest (pp. 476-479). [5434165] (2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest). https://doi.org/10.1109/RWS.2010.5434165