Title :
Joint estimation of I/Q imbalance, CFO and channel response for OFDM systems
Author :
Chung, Yuan-Hwui ; Wu, Kai-Di ; Phoong, See-May
Author_Institution :
Dept of EE, Nat. Taiwan Univ., Taipei
Abstract :
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.
Keywords :
OFDM modulation; channel estimation; error statistics; BER; I/Q imbalance joint estimation; OFDM systems; bit error rate; carrier frequency offset; channel response; Bit error rate; Channel estimation; Costs; Degradation; Energy consumption; Erbium; Frequency domain analysis; Frequency estimation; Maximum likelihood estimation; OFDM; CFO; Channel estimation; I/Q; OFDM;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-2353-8
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2009.4960148
