Title :
An TSK Fuzzy Approach to Channel Estimation for MIMO-OFDM Systems
Author :
Zhang Jian ; He Zhi-ming ; Wang Xue-gang ; Huang Yuan-yuan
Author_Institution :
Coll. of Electron. Eng., Univ. of Electron. Sci. & Technol., Chengdu
Abstract :
This paper proposes an TSK fuzzy approach to channel estimation for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems. The information of dispersive fading channel is described by using TSK fuzzy model, which is updated by using the decision feedback symbol or the scattered pilot symbol. Space-time block coding (STBC) is used to get the diversity gain. Computer simulation demonstrates that the proposed algorithm has the same word error rate (WER) performance compare to the minimum mean-square-error (MMSE) method. Because it is without the computation of inverse matrix in MMSE, the proposed algorithm has a low burden of computation
Keywords :
MIMO communication; OFDM modulation; block codes; channel estimation; fuzzy set theory; least mean squares methods; space-time codes; MIMO-OFDM systems; MMSE method; TSK fuzzy approach; channel estimation; decision feedback symbol; dispersive fading channel; diversity gain; minimum mean-square-error method; multiple-input multiple-output systems; orthogonal frequency division multiplexing; scattered pilot symbol; space-time block coding; word error rate; Block codes; Channel estimation; Dispersion; Diversity methods; Fading; Feedback; Fuzzy systems; MIMO; OFDM; Scattering;
Conference_Titel :
Signal Processing, 2006 8th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9736-3
Electronic_ISBN :
0-7803-9736-3
DOI :
10.1109/ICOSP.2006.345806
