A modified symbol timing and frequency synchronization method based on cyclic prefix for OFDM systems

In this paper, a new blind symbol timing and frequency offset estimation algorithm is proposed for Orthogonal Frequency Division Multiplexing (OFDM) systems in multipath fading channels. The method utilizes the redundant information contained in the cyclic prefix and is suitable within the acquisiti...

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Bibliographic Details
Published in2015 25th International Conference Radioelektronika (RADIOELEKTRONIKA) pp. 331 - 334
Main Authors Baumgartner, Sebastian, El Hajj Shehadeh, Youssef, Hirtz, Gangolf
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2015
Subjects
Baseband
blind synchronization
carrier frequency offset
Correlation
Estimation
Fading
OFDM
symbol timing offset
Synchronization
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Summary:In this paper, a new blind symbol timing and frequency offset estimation algorithm is proposed for Orthogonal Frequency Division Multiplexing (OFDM) systems in multipath fading channels. The method utilizes the redundant information contained in the cyclic prefix and is suitable within the acquisition as well as tracking phase of an OFDM receiver. The method is based on a new timing function which allows to estimate jointly the symbol timing offset, the frequency offset as well as the channel dispersion. In order to demonstrate the performance of the proposed method, the most recent blind synchronization algorithms in the literature are compared with the new procedure under different realistic frequency-selective fading channel conditions.
ISBN:1479981176
9781479981175
DOI:10.1109/RADIOELEK.2015.7129058