Suboptimum Channel Estimate for MIMO-OFDM System in Time-Varying Fast Fading Channels

Author

Mar, Jeich ; Kuo, Chi-Cheng ; Ko, Chin-Chung

fYear

2010

fDate

16-19 May 2010

Firstpage

1

Lastpage

5

Abstract

In this paper, an adaptive path number selection mechanism is proposed to improve the accuracy of the frequency channel response obtained from the pilot-based channel estimation approach for QAM modulated MIMO-OFDM systems. The 2×2 space-frequency block code-dedicated short-range communication (2×2 SFBC- DSRC) system and a six-path channel model are considered as an example of the MIMO-OFDM system in the simulations. Simulation results prove the relevant benefits of the proposed suboptimum channel estimation approach used in time-varying fast fading channels.

Keywords

MIMO communication; OFDM modulation; block codes; channel coding; channel estimation; fading channels; frequency response; time-varying channels; MIMO-OFDM system; MIMO-OFDM systems; QAM modulation; adaptive path number selection mechanism; frequency channel response; pilot-based channel estimation; space-frequency block code-dedicated short-range communication; suboptimum channel estimate; time-varying fast fading channels; AWGN; Bit error rate; Channel estimation; Delay estimation; Fading; Frequency estimation; Frequency synchronization; MIMO; OFDM; Time varying systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC 2010-Spring), 2010 IEEE 71st

Conference_Location

Taipei

ISSN

1550-2252

Print_ISBN

978-1-4244-2518-1

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2010.5493888

Filename

5493888