Title :
Least Square Channel Estimation for MIMO-OFDM System
Author :
Lu Xin ; Lu Yunting ; Xu Jun ; Lin Guangming
Author_Institution :
Shenzhen Inst. of Inf. Technol., Shenzhen, China
Abstract :
The channel estimation techniques for MIMO-OFDM system based on joint time-frequency analysis are investigated. The proposed channel estimation scheme is intended as an effective reference to performance evaluation measurement of others channel estimation methods. According to the defined uplink transmission and symbol structure in IEEE Std. 802-16d/e, linear interpolation LSE is given to compare performance with perfect channel estimation. Simulations show that up to 2 dB in BER can be gained over the LSE under SUI-1 when SNR exceeds 7 dB, however others offer no more than 2 dB.
Keywords :
MIMO communication; OFDM modulation; channel estimation; interpolation; least squares approximations; time-frequency analysis; IEEE 802.16e standard; MIMO-OFDM system; least square channel estimation; linear interpolation LSE; symbol structure; time-frequency analysis; uplink transmission; Australia; Channel estimation; Demodulation; Information technology; Interpolation; Least squares approximation; MIMO; OFDM; Time frequency analysis; Training data;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5302824
