Frame synchronization and joint estimation of IQ imbalance and channel response for OFDM systems

W. J. Cho*, T. K. Chang, Y. H. Chung, S. M. Phoong, Yuan-Pei Lin

*Corresponding author for this work

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

9 Scopus citations

Abstract

In this paper, we first introduce a new method for joint estimation of IQ imbalance and channel response in OFDM systems under the assumption of perfect frame synchronization. The proposed method needs only one OFDM block for training and the solution is given in closed form. Then the method is applied to the scenario when the OFDM frame is not synchronized. A reduced complexity algorithm is derived. With a relatively low complexity, the proposed method can accurately estimate the frame starting position, the IQ imbalance and the channel response simultaneously. Simulation results show that the bit error rate (BER) performance of the proposed method is very close to the ideal case when all these parameters are known perfectly at the receiver.

Original languageEnglish
Title of host publication2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Pages3029-3032
Number of pages4
DOIs
StatePublished - 16 Sep 2008
Event2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP - Las Vegas, NV, United States
Duration: 31 Mar 20084 Apr 2008

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)1520-6149

Conference

Conference2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
CountryUnited States
CityLas Vegas, NV
Period31/03/084/04/08

Keywords

  • Channel estimation
  • Frame synchronization
  • IQ imbalance

Fingerprint Dive into the research topics of 'Frame synchronization and joint estimation of IQ imbalance and channel response for OFDM systems'. Together they form a unique fingerprint.

  • Cite this

    Cho, W. J., Chang, T. K., Chung, Y. H., Phoong, S. M., & Lin, Y-P. (2008). Frame synchronization and joint estimation of IQ imbalance and channel response for OFDM systems. In 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP (pp. 3029-3032). [4518288] (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings). https://doi.org/10.1109/ICASSP.2008.4518288