Open AccessPerfect symbol recovery and NBI suppression in MIMO‐OFDM systems
Author(s) -
Darsena D.,
Gelli G.,
Verde F.
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2013.3259
Subject(s) - orthogonal frequency division multiplexing , mimo , mimo ofdm , narrowband , symbol (formal) , interference (communication) , computer science , control theory (sociology) , algorithm , multiplexing , single antenna interference cancellation , nonlinear system , mathematics , electronic engineering , telecommunications , engineering , channel (broadcasting) , physics , decoding methods , control (management) , quantum mechanics , artificial intelligence , programming language
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.