Title :
Semi-blind interference alignment over correlated wireless channels
Author :
Takai, Mineo ; Ishibashi, Koji ; Wada, Tomotaka
Author_Institution :
Shizuoka Univ., Hamamatsu, Japan
Abstract :
Semi-blind interference alignment (S-BIA) is a recently proposed interference cancellation technique on multiuser channels. S-BIA aligns interference signals with a given signal space by controlling transmit weights based on partial knowledge of channel coefficients. In this paper, we mathematically analyze the impact of channel correlation and numerically show that S-BIA is more robust against the channel correlation than ordinary multiple-input multiple-output (MIMO) systems.
Keywords :
interference suppression; multipath channels; multiuser channels; wireless channels; S-BIA; channel coefficient; channel correlation; correlated wireless channel; interference cancellation technique; interference channels; multiuser channels; semiblind interference alignment; Correlation; Eigenvalues and eigenfunctions; Interference; MIMO; OFDM; Receivers; Transmitters; Interference channels; channel capacity; eigenvalues and eigenfunctions; multipath channels; multiuser channels;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2014 IEEE
Conference_Location :
Newport Beach, CA
Print_ISBN :
978-1-4799-2298-7
DOI :
10.1109/RWS.2014.6830100
