Joint transmitter/receiver I/Q imbalance compensation for direct conversion OFDM in packet-switched multipath environments

TitleJoint transmitter/receiver I/Q imbalance compensation for direct conversion OFDM in packet-switched multipath environments
Publication TypeJournal Article
Year of Publication2009
AuthorsJ Feigin, and D Brady
JournalIeee Transactions on Signal Processing
Volume57
Start Page4588
Issue11
Pagination4588 - 4593
Date Published11/2009
Abstract

This correspondence presents an algorithm for compensation of I/Q imbalance for a direct-conversion packet-switched orthogonal frequency-division-multiplexing (OFDM) communications system, which accounts for transmitter I/Q imbalance, receiver I/Q imbalance, phase/ frequency error, and dispersive multipath fading. The proposed estimation algorithm is then presented, which operates within the framework of existing multiuser OFDM radio standards (802.11a). It is shown that this algorithm accurately estimates and corrects transceiver I/Q imbalance on a packet-by-packet basis, all within the receiver's digital baseband. © 2009 IEEE.

DOI10.1109/TSP.2009.2024999
Short TitleIeee Transactions on Signal Processing