Channel estimation technique with frequency offset correction for OFDM space-time diversity system

Author

Kocan, Enis ; Djurisic, Milica Pejanovic

Author_Institution

Faculty of Electr. Eng., Podgorica, Serbia

Volume

1

fYear

2005

fDate

28-30 Sept. 2005

Firstpage

93

Abstract

In this paper pilot based channel estimation technique with frequency offset correction for OFDM space-time diversity system is proposed. It is shown that the considered system becomes useless for the frequency offset of 0.3% of the subcarrier spacing, if frequency offset correction is not performed. With the proposed estimation technique, the system tolerance to the frequency offset is significantly improved. Thus, frequency offset of 10% of the subcarrier spacing has the same effect as 2 dB signal-to-noise ratio (SNR) degradation and it can be tolerated.

Keywords

OFDM modulation; channel estimation; diversity reception; OFDM; SNR; channel estimation technique; frequency offset correction; signal-to-noise ratio; space-time diversity system; subcarrier spacing; system tolerance; Bit error rate; Channel estimation; Degradation; Frequency diversity; Frequency estimation; Maximum likelihood estimation; OFDM modulation; Signal to noise ratio; Space technology; Transmitters; Frequency offset estimation; OFDM; Space-time diversity;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications in Modern Satellite, Cable and Broadcasting Services, 2005. 7th International Conference on

Print_ISBN

0-7803-9164-0

Type

conf

DOI

10.1109/TELSKS.2005.1572070

Filename

1572070