Joint estimation of I/Q imbalance, CFO and channel response for OFDM systems

Joint estimation of I/Q imbalance, CFO and channel response for OFDM systems

In this paper, we study the joint estimation of I/Q imbalance, CFO and channel response for OFDM systems. Using two repeated OFDM blocks for training, we propose a new method to solve the joint estimation problem. The implementation complexity is low. Simulation results show that the proposed method...

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Hauptverfasser: Yuan-Hwui Chung, Kai-Di Wu, See-May Phoong
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Bit error rate
CFO
Channel estimation
Costs
Degradation
Energy consumption
Erbium
Frequency domain analysis
Frequency estimation
I/Q
Maximum likelihood estimation
OFDM
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Beschreibung
Zusammenfassung:In this paper, we study the joint estimation of I/Q imbalance, CFO and channel response for OFDM systems. Using two repeated OFDM blocks for training, we propose a new method to solve the joint estimation problem. The implementation complexity is low. Simulation results show that the proposed method has a good performance and its BER is very close to the ideal case where all the parameters are known perfectly at the receiver.
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2009.4960148