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A robust frequency offset estimation scheme for OFDM systems

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3 Author(s)
Liu Chun-guo ; Nat. Key Lab. of Blind Signals Process., Chengdu, China ; Li Li-zhong ; Zhang Xiao-yong

In this paper, an improved carrier frequency offset estimation method which is less sensitive to timing offset is proposed. The method is based on the carefully constructed frequency domain sequence and the correlation operation. Then, we analyze the performances of our newly proposed estimation metric over different wireless channel conditions by Monte Carlo simulations. Finally, according to the training symbols of IEEE 802.16d, our simulation results show that the newly proposed method can overcome the relatively large influences introduced by timing offset, and at the same time, it may perform better than the conventional methods without increasing algorithm's complexity.

Published in:

Mobile Congress (GMC), 2010 Global

Date of Conference:

18-19 Oct. 2010