Title :
Optimal orthogonal pilots design for MIMO-OFDM channel estimation
Author :
Sagar, K. ; Palanisamy, P.
Author_Institution :
Department of Electronics and Communication Engineering, National Institute of Technology, Tiruchirappalli, India-620015
Abstract :
This paper presents a pilot based channel estimation method for MIMO-OFDM systems, the combination of MIMO with OFDM is used to increase the bit rate as well as capacity. The existing channel estimation methods uses more OFDM periods (STBC) and gives high MSE(conventional pilots). The proposed channel estimation method has very low complexity, With these orthogonal pilots we can obtain the optimal MSE which is 25% of conventional pilot method MSE and it effectively utilizes OFDM periods compared to STBC pilot method. Experimental results show that the proposed method achieves higher accuracy and gives better performance.
Keywords :
Channel estimation; Complexity theory; Partial transmit sequences; Receiving antennas; Transmitting antennas; MIMO-OFDM; channel estimation; frequency selective fading channel; pilot subcarrier;
Conference_Titel :
Computational Intelligence and Computing Research (ICCIC), 2014 IEEE International Conference on
Print_ISBN :
978-1-4799-3974-9
DOI :
10.1109/ICCIC.2014.7238286