On the baseband compensation of IQ imbalances in OFDM systems
Tarighat, Alireza; Sayed, Ali H.
2004

Abstract

OFDM is a widely recognized and standardized modulation scheme for future high bit rate communications. Implementation of OFDM-based systems suffers from inphase-quadrature phase (IQ) imbalances in the front-end analog processing. The IQ imbalances can severely limit the operating SNR and, consequently, the supported constellation sizes. In this paper, the effect of IQ imbalances on OFDM receivers is analyzed and system level algorithms to compensate for these distortions are proposed. The algorithms include different post and pre-FFT estimation and correction techniques.

Details

Title On the baseband compensation of IQ imbalances in OFDM systems
Author(s) Tarighat, Alireza ; Sayed, Ali H.
Published in Acoustics, Speech, and Signal Processing, 2004. Proceedings.(ICASSP'04). IEEE International Conference on
Volume 4
Pages iv-1021
Conference IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP, Montreal, Canada, May 17-21, 2004
Date 2004
DOI https://doi.org/10.1109/ICASSP.2004.1327003
Laboratories ASL
Record Appears in Scientific production and competences > STI - School of Engineering > IEM - Institut d'Electricité et de Microtechnique > ASL - Adaptative Systems Laboratory
Peer-reviewed publications
Work outside EPFL
Conference Papers
Published
Record creation date 2017-12-19