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

Authors:
Leonardo A. Lanante;Ryuta Imashioya;Masayuki Kurosaki;Hiroshi Ochi
Affiliations:
Kyushu Institute of Technology;Kyushu Institute of Technology;Kyushu Institute of Technology;Kyushu Institute of Technology
Venue:
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 2
Year:
2009

Citing 3
Cited 0

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OFDM Baseband Receiver Design for Wireless Communications
A new joint estimation scheme for carrier frequency offset and I/Q imbalance

ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Compensation of IQ imbalance and phase noise in OFDM systems

IEEE Transactions on Wireless Communications

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Abstract

This paper presents a simple algorithm for jointly estimating Carrier Frequency Offset and I/Q Imbalance parameters. The reduced complexity algorithm used is previously proposed as an estimation algorithm using 2 long training symbols of the 802.11a preamble containing 64 samples each. We have shown in this paper that using two short training symbols for faster and less complex estimation scheme is only 1-2 dB below a system without CFO or IQ Imbalance.