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

Authors:
Jeffrey Feigin;David Brady
Affiliations:
Electrical and Computer Engineering Department, Northeastern University, Boston, MA;Electrical and Computer Engineering Department, Northeastern University, Boston, MA
Venue:
IEEE Transactions on Signal Processing
Year:
2009

Citing 8
Cited 1

OFDM Wireless LANs: A Theoretical and Practical Guide

OFDM Wireless LANs: A Theoretical and Practical Guide
Blind I/Q signal separation-based solutions for receiver signal processing

EURASIP Journal on Applied Signal Processing
Analysis and compensation of transmitter and receiver I/Q imbalances in space-time coded multiantenna OFDM systems

EURASIP Journal on Wireless Communications and Networking - Multicarrier Systems
IQ-Imbalance Compensation for OFDM in the Presence of IBI and Carrier-Frequency Offset

IEEE Transactions on Signal Processing
Advanced methods for I/Q imbalance compensation in communicationreceivers

IEEE Transactions on Signal Processing
Joint Adaptive Compensation of Transmitter and Receiver IQ Imbalance Under Carrier Frequency Offset in OFDM-Based Systems

IEEE Transactions on Signal Processing
Frequency offset and I/Q imbalance compensation for direct-conversion receivers

IEEE Transactions on Wireless Communications
Joint compensation of transmitter and receiver impairments in OFDM systems

IEEE Transactions on Wireless Communications

Joint Compensation of Transmitter and Receiver IQ Imbalance for MIMO-OFDM Over Doubly Selective Channels

Wireless Personal Communications: An International Journal

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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.