Maximum Doppler shift frequency estimation using Autocorrelation Function for MIMO OFDM systems

Author

Mirza, Jawad ; Ikram, Ataul Aziz ; Bajwa, Hassan

Author_Institution

Dept. of Electr. Eng., COMSATS Inst. of Inf. Technol., Wah, Pakistan

fYear

2010

fDate

14-16 June 2010

Firstpage

1

Lastpage

4

Abstract

In this paper, a method for estimating the maximum Doppler shift frequency is presented for Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems. This method uses the Autocorrelation Function (ACF) for estimating frequency shift that induces ICI between adjacent OFDM subcarriers. The simulation results investigate the BER performance of OFDM system that achieves transmit and receive diversity by using Alamouti/MRC, as well as the BER performance of MIMO linear detectors Zero Forcing (ZF) and Minimum Mean Square Error (MMSE) under the effect of a Doppler spread channel.

Keywords

Doppler shift; MIMO communication; frequency division multiplexing; mean square error methods; Alamouti/MRC; MIMO OFDM systems; autocorrelation function; maximum Doppler shift frequency estimation; minimum mean square error; multiple input multiple output system; orthogonal frequency division multiplexing system; zero forcing; Diversity reception; Doppler effect; Estimation; MIMO; OFDM; Receivers; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Emerging Technologies (ICIET), 2010 International Conference on

Conference_Location

Karachi

Print_ISBN

978-1-4244-8001-2

Type

conf

DOI

10.1109/ICIET.2010.5625717

Filename

5625717