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

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/WICOM.2009.5302824

Filename

5302824