Title :
A low complexity joint parameter estimation scheme for Carrier Frequency Offset and I/Q Imbalance
Author :
Lanante, Leonardo A., Jr. ; Imashioya, Ryuta ; Kurosaki, Masayuki ; Ochi, Hiroshi
Author_Institution :
Kyushu Inst. of Technol., Kitakyushu
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 802.11 a 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.
Keywords :
computational complexity; frequency estimation; wireless LAN; I-Q imbalance; IEEE 802.11; carrier frequency offset; low-complexity joint parameter estimation scheme; reduced complexity algorithm; training symbols; wireless local area networks; Bit error rate; Digital video broadcasting; Fading; Frequency estimation; Least squares approximation; Low pass filters; OFDM modulation; Parameter estimation; Surface acoustic waves; Wireless communication; Carrier Frequency Offset; I/Q Imbalance; Least Squares Estimate;
Conference_Titel :
Advanced Communication Technology, 2009. ICACT 2009. 11th International Conference on
Conference_Location :
Phoenix Park
Print_ISBN :
978-89-5519-138-7
Electronic_ISBN :
1738-9445
