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

Other

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

Fingerprint

Fading channels
Orthogonal frequency division multiplexing
Transfer functions
Transmitters
Nonlinear equations
Compensation and Redress

Keywords

  • IQ imbalance
  • OFDM

ASJC Scopus subject areas

  • Computer Networks and Communications

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] https://doi.org/10.1109/RWS.2010.5434165

Joint transmitter and receiver IQ imbalance estimation and compensation for OFDM systems. / Lu, I-Tai; Chang, Jiang.

2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest. 2010. p. 476-479 5434165.

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

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., 5434165, pp. 476-479, 2010 IEEE Radio and Wireless Symposium, RWW 2010, New Orleans, LA, United States, 1/10/10. https://doi.org/10.1109/RWS.2010.5434165
Lu I-T, Chang J. Joint transmitter and receiver IQ imbalance estimation and compensation for OFDM systems. In 2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest. 2010. p. 476-479. 5434165 https://doi.org/10.1109/RWS.2010.5434165
Lu, I-Tai ; Chang, Jiang. / Joint transmitter and receiver IQ imbalance estimation and compensation for OFDM systems. 2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest. 2010. pp. 476-479
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