Title :
Evaluation of nonlinear distortion in MIMO transmitters
Author :
Bozic, Milorad ; Cabarkapa, Milan ; Budimir, D. ; Neskovic, N. ; Neskovic, Aleksandar
Author_Institution :
Wireless Commun. Res. Group, Univ. of Westminster, London, UK
fDate :
Oct. 31 2012-Nov. 2 2012
Abstract :
In this paper, an evaluation of unwanted effects in Multiple Input Multiple Output (MIMO) transmitters is described. Complete 2×2 and 4×4 MIMO Orthogonal Frequency Division Multiplex (OFDM) transmitters are simulated for the purpose of quantifying all potential unwanted effects such as Power Amplifiers´ (PAs) nonlinearity, linear and nonlinear crosstalk, and IQ modulator imperfections. An experimental analysis of a 2×2 MIMO transmitter using two-tones and WCDMA signal is presented.
Keywords :
MIMO communication; OFDM modulation; code division multiple access; nonlinear distortion; radio transmitters; IQ modulator; MIMO transmitter; OFDM transmitter; WCDMA signal; linear crosstalk; multiple input multiple output transmitter; nonlinear crosstalk; nonlinear distortion evaluation; orthogonal frequency division multiplexing; power amplifier; Crosstalk; MIMO; Nonlinear distortion; OFDM; Power amplifiers; Radio frequency; Transmitters; IQ imbalance; MIMO; OFDM; crosstalk; distortion; power amplifiers;
Conference_Titel :
Radar Conference (EuRAD), 2012 9th European
Conference_Location :
Amsterdam
Print_ISBN :
978-1-4673-2471-7
