Title :
SFBC assisted IQ imbalance estimation and compensation in MIMO-OFDM systems
Author :
Chang, Jiang ; Lu, I-Tai ; Nazar, Shahrokh Nayeb ; Haghighat, Afshin
Author_Institution :
Dept. of Electr. & Comput. Eng., Polytech. Inst. of New York Univ., Brooklyn, NY, USA
Abstract :
An efficient IQ imbalance estimation and compensation scheme for MIMO-OFDM systems is proposed. The scheme exploits the inherent data structure imposed by space frequency block code (SFBC), for lowering the implementation complexity. As such, no further requirements are laid on the preamble design. The proposed algorithm can be easily extended to the MIMO-OFDM systems using STBC or with frequency-selective IQ imbalance. Simulation results demonstrate the accuracy and effectiveness of the proposed IQ imbalance estimation scheme in practical MIMO-OFDM scenarios such as LTE.
Keywords :
MIMO communication; OFDM modulation; block codes; MIMO-OFDM systems; frequency-selective IQ imbalance; space frequency block code; Block codes; Broadband communication; Data structures; Frequency estimation; MIMO; OFDM; Transmitters; USA Councils; Wireless LAN; Wireless communication; IQ imbalance; MIMO; OFDM; SFBC;
Conference_Titel :
Signal Processing and Communication Systems, 2009. ICSPCS 2009. 3rd International Conference on
Conference_Location :
Omaha, NE
Print_ISBN :
978-1-4244-4473-1
Electronic_ISBN :
978-1-4244-4474-8
DOI :
10.1109/ICSPCS.2009.5306436
