Title :
SINR analysis for beamforming OFDM systems under joint transmit-receive I/Q imbalance
Author :
Ozdemir, Ozgur ; Hamila, Ridha ; Al-Dhahir, Naofal
Author_Institution :
Dept. of Electr. Eng., Qatar Univ., Doha, Qatar
Abstract :
In this paper, we derive an analytical expression for the subcarrier average SINR of a beamforming OFDM system in the presence of joint transmit-receive I/Q imbalance. The derived expression quantifies the impact of the I/Q imbalance level at both the transmit and receive sides, the size of the beamforming array, and the input SNR level on performance. Several special and limiting cases are investigated providing new design insights.
Keywords :
OFDM modulation; array signal processing; radio transceivers; beamforming OFDM systems; beamforming array; direct-conversion transceivers; joint transmit-receive I/Q imbalance; subcarrier average SINR analysis; Array signal processing; Interference; Mixers; OFDM; Signal to noise ratio; Transmitters; Vectors; Beamforming; I/Q Imbalance; OFDM; SINR;
Conference_Titel :
Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4673-2566-0
Electronic_ISBN :
2166-9570
DOI :
10.1109/PIMRC.2012.6362661
