Title :
Perfect symbol recovery and NBI suppression in MIMO-OFDM systems
Author :
Darsena, Donatella ; Gelli, Giacinto ; Verde, Francesco
Author_Institution :
Dept. of Eng., Univ. of Napoli Parthenope, Naples, Italy
Abstract :
It is shown that by exploiting the degrees of freedom arising from the use of multiple antennas and/or insertion of virtual carriers in multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems, perfect symbol recovery and complete narrowband interference (NBI) cancellation can be achieved in the absence of noise by means of constrained minimum mean-output-energy linear filtering. Moreover, a nonlinear iterative scheme is proposed to improve NBI rejection in realistic operative conditions.
Keywords :
MIMO communication; OFDM modulation; filtering theory; interference suppression; iterative methods; MIMO-OFDM systems; NBI rejection; NBI suppression; constrained minimum mean-output-energy linear filtering; multiple-input multiple-output orthogonal frequency-division multiplexing systems; narrowband interference cancellation; nonlinear iterative scheme; perfect symbol recovery; virtual carriers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.3259
