A new joint estimation scheme for carrier frequency offset and I/Q imbalance

Authors:
Leonardo Lanante, Jr.;Masayuki Kurosaki;Hiroshi Ochi
Affiliations:
Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka City, Fukuoka, Japan;Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka City, Fukuoka, Japan;Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Iizuka City, Fukuoka, Japan
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

Citing 2
Cited 1

OFDM Baseband Receiver Design for Wireless Communications

OFDM Baseband Receiver Design for Wireless Communications
Compensation of IQ imbalance and phase noise in OFDM systems

IEEE Transactions on Wireless Communications

A low complexity joint parameter estimation scheme for carrier frequency offset and I/Q imbalance

ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 2

Quantified Score

Hi-index	0.00

Visualization

Abstract

This paper introduces a novel algorithm for jointly estimating Carrier Frequency Offset and I/Q Imbalance for OFDM systems. The new algorithm is a closed form solution to obtain the frequency offset and I/Q Imbalance parameters in the absence of noise. In the presence of noise, the proposed algorithm uses the least squares algorithm to accurately estimate the parameters. The proposed algorithm is thus very scalable in terms of complexity. While the target system is OFDM, the proposed algorithm applies to any system as long as two identical data blocks are received in the receiver. Simulation results show that given a suitable amount of CFO, the high estimation accuracy of the proposed algorithm makes its BER performance comparable to a system without CFO and I/Q Imbalance.