Title :
A novel algorithm to improve the blind receiver for convolutive MIMO systems
Author :
Habibi, Iman ; Masnadi-Shirazi, Mohammad Ali ; Habibi-Ardekani, Pegah
Author_Institution :
Dept. of Electr. Eng., Shiraz Univ., Shiraz, Iran
Abstract :
A novel approach is presented to convert the convolutive multiple-input multiple-output (MIMO) system with specified number of real receive antennas to an instantaneous MIMO system with virtual larger number of receive antennas. To achieve this goal the signal model in subspace-based channel shortening for the blind separation of convolutive mixtures has been reformulated and the corresponding virtual MIMO system has been presented. Then independent component analysis (ICA) algorithm is employed to evaluate the transmitted data. By virtual increase of the number of antennas the performance of the system improves significantly. Also a modification on the proposed approach for the case of BPSK modulation reduces the required number of receive antennas to half. Overall results have been verified via simulation.
Keywords :
MIMO communication; independent component analysis; radio receivers; BPSK modulation; blind receiver; blind separation; convolutive MIMO systems; convolutive mixtures; independent component analysis; real receive antennas; virtual larger number; Binary phase shift keying; Blind equalizers; Blind source separation; Independent component analysis; MIMO; OFDM modulation; Receiving antennas; Source separation; Training data; Transmitters;
Conference_Titel :
Wireless Communication Systems, 2009. ISWCS 2009. 6th International Symposium on
Conference_Location :
Tuscany
Print_ISBN :
978-1-4244-3584-5
Electronic_ISBN :
978-1-4244-3584-5
DOI :
10.1109/ISWCS.2009.5285306
