Title :
Optimal Threshold for Channel Estimation in MIMO-OFDM System
Author :
Yi, Wang ; Lihua, Li ; Zhang Ping ; Zemin, Liu
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
In this paper the optimal threshold is proposed to derive channel impulse response on the multi-path taps and eliminate noise on the other taps. The choice of threshold, which is crucial for the accuracy of the estimator, is analyzed theoretically and the optimal threshold introducing the least MSE is derived. Simulation results show that the performance of our proposed channel estimation with the optimal threshold has significant improvement over the conventional channel estimation algorithm.
Keywords :
MIMO communication; OFDM modulation; channel estimation; MIMO- OFDM system; channel estimation; channel impulse response; optimal threshold; Channel estimation; Communications Society; Discrete Fourier transforms; Estimation theory; Frequency estimation; MIMO; OFDM; Receiving antennas; Transmitting antennas; Wireless communication;
Conference_Titel :
Communications, 2008. ICC '08. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2075-9
Electronic_ISBN :
978-1-4244-2075-9
DOI :
10.1109/ICC.2008.821
