Title :
Performance analysis of hybrid scheme for semi-blind channel estimation in MIMO systems
Author :
Do, Dinh-Thuan ; Vu, Dinh-Thanh
Author_Institution :
Dept. of Commun. Eng., Ton Duc Thang Univ., Ho Chi Minh City, Vietnam
Abstract :
The hybrid schemes for channel estimation are considered as the flexible structure satisfying demand of high data rate transmission in the multiple-input multiple-output (MIMO) technique. Generally, the training-based least square (LS) algorithm is chosen in wide applications from the first generation wireless network to the newest one of MIMO. For resolving the bandwidth efficiency problem, we can combine the LS estimation with the pure blind techniques such as second-order statistics (SOS). In this paper, we attempt to find the hybrid scheme which is so-called semi-blind channel estimation and outperforms than the conventional LS based approaches. Simulation results confirm our modified scheme and illustrate that the subspace based new semi-blind channel estimation is capable of improving the performance of the overall system.
Keywords :
MIMO communication; channel estimation; least squares approximations; MIMO systems; bandwidth efficiency; second-order statistics; semi-blind channel estimation; training-based least square algorithm; Channel estimation; Estimation; MIMO; Receiving antennas; Signal to noise ratio; Training; Transmitting antennas; MIMO; least square; semi-blind channel;
Conference_Titel :
Advanced Technologies for Communications (ATC), 2010 International Conference on
Conference_Location :
Ho Chi Minh City
Print_ISBN :
978-1-4244-8875-9
DOI :
10.1109/ATC.2010.5672737