Multipath Delay Estimation for a MIMO-OFDM System

Author

Bai, Jie ; Zhang, Jianhua ; Liu, Ruoju ; He, Xueqi ; Zhang, Ping

Author_Institution

Beijing Univ. of Posts & Telecommun.

fYear

2005

fDate

5-5 Oct. 2005

Firstpage

87

Lastpage

91

Abstract

In this paper, a multipath delay estimation scheme for a MIMO-OFDM system is presented. The scheme is achieved by using the same training symbols for each transmitter antenna after performing transmission delay timing estimation. The training sequences which are simultaneously transmitted are specialized for utilizing the peak autocorrelation property. Probability statistics for multipath delay of multi-frame is introduced to improve estimation performance. The simulation results indicate that delay of the path which the fading coefficient is higher than -18 dB can be detected by more than 90% when signal-to-noise radio (SNR) is larger than 6 dB

Keywords

MIMO systems; OFDM modulation; antenna arrays; channel estimation; multipath channels; radio transmitters; statistical analysis; MIMO-OFDM system; fading coefficient; multipath delay estimation scheme; peak autocorrelation property; probability statistics; signal-to-noise radio; training sequences; transmission delay timing estimation; transmitter antenna; AWGN; Channel estimation; Delay estimation; Fading; Frequency synchronization; OFDM; Radio transmitters; Receiving antennas; Timing; Transmitting antennas; MIMO; Multipath; OFDM;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2005 Asia-Pacific Conference on

Conference_Location

Perth, WA

Print_ISBN

0-7803-9132-2

Type

conf

DOI

10.1109/APCC.2005.1554024

Filename

1554024