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An Observation Method for Estimating Carrier Frequency Offset in OFDM Systems

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Advances in Computer Science and Ubiquitous Computing (UCAWSN 2016, CUTE 2016, CSA 2016)

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is widely considered as an effective approach for current and future high-speed wireless communication. However, one of the main drawbacks of the OFDM is that it is sensitive to carrier frequency offset (CFO). The CFO causes interference among the multiplicity of carriers in the OFDM signal. Thus, the CFO must be estimated and compensated for in OFDM communication systems to minimize adverse effects of inter-carrier interference on the signal and maintain orthogonality. We propose a method based on observation training symbols for estimating CFO by employing block-by-block estimation. An analytical expression for the mean squared error of the frequency synchronization scheme is given and the results show that the proposed method has a superior performance compared to the conventional methods.

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Correspondence to Humor Hwang .

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Altaha, M., Hwang, H. (2017). An Observation Method for Estimating Carrier Frequency Offset in OFDM Systems. In: Park, J., Pan, Y., Yi, G., Loia, V. (eds) Advances in Computer Science and Ubiquitous Computing. UCAWSN CUTE CSA 2016 2016 2016. Lecture Notes in Electrical Engineering, vol 421. Springer, Singapore. https://doi.org/10.1007/978-981-10-3023-9_140

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  • DOI: https://doi.org/10.1007/978-981-10-3023-9_140

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-3022-2

  • Online ISBN: 978-981-10-3023-9

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