Title :
Blind Channel Estimation for MIMO-OFDM System Based on Oblique Projection
Author :
Zhiyong Zhang ; Sun Jifeng
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China
Abstract :
The blind channel estimation using oblique projection of MIMO-OFDM system is proposed in this paper. It is introduced firstly of the channel model and receiving-data model. The fundamental principle of oblique projection is considered roughly and the oblique projection algorithm on how to estimate the channel matrix and the ambiguous matrix are both particularly analyzed. The simulation results show that the estimation performance of the oblique projection algorithm with lower computational complexity is close to that of subspace decomposition algorithm.
Keywords :
MIMO communication; OFDM modulation; channel estimation; computational complexity; matrix algebra; wireless channels; MIMO-OFDM system; ambiguous matrix estimation; blind channel matrix estimation; channel model; computational complexity; oblique projection algorithm; receiving-data model; subspace decomposition algorithm; Blind equalizers; Channel estimation; Computational complexity; Computational modeling; MIMO; Matrix decomposition; OFDM; Projection algorithms; Receiving antennas; Transmitting antennas;
Conference_Titel :
Image and Signal Processing, 2009. CISP '09. 2nd International Congress on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4129-7
Electronic_ISBN :
978-1-4244-4131-0
DOI :
10.1109/CISP.2009.5301458
