Title :
Low-complexity pilot-aided compensation for carrier frequency offset and I/Q imbalance
Author :
Lin, Hai ; Zhu, Xu ; Yamashita, Katsumi
Author_Institution :
Dept. of Electr. & Inf. Syst., Osaka Prefecture Univ., Sakai, Japan
fDate :
2/1/2010 12:00:00 AM
Abstract :
We propose a novel pilot-aided compensation scheme for carrier frequency offset (CFO) and I/Q imbalance. The proposed scheme comprises a generalized periodic pilot and a low-complexity acquisition algorithm, where the CFO and the coefficients for I/Q imbalance compensation can be obtained in explicit closed-form.
Keywords :
IEEE standards; OFDM modulation; communication complexity; wireless LAN; I/Q imbalance; IEEE 802.11a; carrier frequency offset; low-complexity acquisition algorithm; low-complexity pilot-aided compensation scheme; orthogonal frequency division multiplexing; Circuits; Costs; Frequency estimation; Frequency synchronization; Least squares approximation; OFDM; Radio frequency; Receivers; Signal processing algorithms; Timing; Carrier frequency offset, I/Q imbalance; orthogonal frequency division multiplexing (OFDM), IEEE 802.11a;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2010.02.070505
