Title :
QR decomposition-based LS channel estimation algorithm in MIMO-OFDM system
Author :
Li, Mei ; Wang, Xiang
Author_Institution :
Inst. of Inf. Sci. & Eng., He Bei Univ. of Sci. & Technol., Shi Jiazhuang, China
Abstract :
It discusses the channel estimation algorithm of LS. Because of the complexity of the matrix inversion computation in LS algorithm, we use QR decomposition in LS, that is QRD-LS. Then, the complexity of LS algorithm can be reduced. From the simulation of the LS and QRD-LS algorithm. We can see that the performance of these two algorithm is similary. However, the QRD-LS algorithm has no matrix inversion. So, this algorithm can simplify the calculation.
Keywords :
Channel estimation; Frequency division multiplexing; MIMO; Matrix decomposition; OFDM modulation; Phase modulation; Quadrature amplitude modulation; Receiving antennas; Transmitters; Transmitting antennas; channel estimaiton; multiple-input multiple-output; orthgonal frequency division multiplexing;
Conference_Titel :
Industrial Mechatronics and Automation (ICIMA), 2010 2nd International Conference on
Conference_Location :
Wuhan, China
Print_ISBN :
978-1-4244-7653-4
DOI :
10.1109/ICINDMA.2010.5538209
