Impact of multipath channel parameters on channel estimation performance in OFDM systems

Author

Golovins, Eugene ; Ventura, Neco

Author_Institution

Dept. of Electr. Eng., Univ. of Cape Town, Cape Town, South Africa

fYear

2009

fDate

23-25 Sept. 2009

Firstpage

1

Lastpage

5

Abstract

Performance of wireless OFDM systems significantly depends on channel estimation accuracy. However, it is difficult to take into account all possible scenarios as the variance of error at the output of the minimum mean square error (MMSE) estimator depends on the second-order channel statistics. In this paper, we derive the lower and the upper MSE bounds, characterising the best and the worst-case channel estimation performance, and discuss channel conditions when these bounds are attained.

Keywords

OFDM modulation; channel estimation; mean square error methods; multipath channels; statistical analysis; minimum mean square error estimator; multipath channel; second-order channel statistic; wireless OFDM system; worst-case channel estimation; Africa; Channel estimation; Cities and towns; Error analysis; Fading; Mean square error methods; Multipath channels; OFDM; Performance analysis; Transmitters; channel impulse response; mean square error; multipath; signal-to-noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

AFRICON, 2009. AFRICON '09.

Conference_Location

Nairobi

Print_ISBN

978-1-4244-3918-8

Electronic_ISBN

978-1-4244-3919-5

Type

conf

DOI

10.1109/AFRCON.2009.5308191

Filename

5308191