TY - GEN
T1 - LS-based joint estimation of carrier frequency offset and IQ imbalance in OFDM systems
AU - Liang, Jheng Ru
AU - Kuo, Chih-Hung
PY - 2010/12/1
Y1 - 2010/12/1
N2 - In this paper, two non-ideal effects, carrier frequency offset (CFO) and IQ imbalance, are jointly compensated for an orthogonal frequency division multiplexing (OFDM) system. Based on the two identical sequences in the preamble, a LS-based method is proposed to estimate both CFO and IQ imbalance. This method has much lower complexity than the state-of-art expectation- maximization (EM) approach. Simulation results show that the proposed algorithm is robust for a wide SNR range, and performs better in the estimation of the IQ imbalance.
AB - In this paper, two non-ideal effects, carrier frequency offset (CFO) and IQ imbalance, are jointly compensated for an orthogonal frequency division multiplexing (OFDM) system. Based on the two identical sequences in the preamble, a LS-based method is proposed to estimate both CFO and IQ imbalance. This method has much lower complexity than the state-of-art expectation- maximization (EM) approach. Simulation results show that the proposed algorithm is robust for a wide SNR range, and performs better in the estimation of the IQ imbalance.
UR - http://www.scopus.com/inward/record.url?scp=78751501491&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78751501491&partnerID=8YFLogxK
U2 - 10.1109/ISNE.2010.5669203
DO - 10.1109/ISNE.2010.5669203
M3 - Conference contribution
AN - SCOPUS:78751501491
SN - 9781424466948
T3 - 2010 International Symposium on Next-Generation Electronics, ISNE 2010 - Conference Program
SP - 52
EP - 55
BT - 2010 International Symposium on Next-Generation Electronics, ISNE 2010 - Conference Program
T2 - 2010 International Symposium on Next-Generation Electronics, ISNE 2010
Y2 - 18 November 2010 through 19 November 2010
ER -