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Frequency-offset synchronization and channel estimation for OFDM-based transmission

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4 Author(s)
Hyoung-Kyu Song ; Dept. of Inf. & Commun. Eng., Se-Jong Univ., Seoul, South Korea ; Young-Hwan You ; Jong-Ho Paik ; Yong-Soo Cho

This letter is concerned with a frequency offset estimation technique for OFDM based transmission systems. The frequency estimation technique utilizes a repetitive signal structure inside of a OFDM symbol which is used to enlarge the range and increase the accuracy of offset estimation. Also, an averaged decision-directed channel estimation (ADDCE) technique suitable for burst data is proposed.

Published in:

IEEE Communications Letters  (Volume:4 ,  Issue: 3 )