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Appl. Sci. 2018, 8(2), 197; doi:10.3390/app8020197

Robust Sampling Frequency Offset Estimation for OFDM over Frequency Selective Fading Channels

Department of Computer Engineering, Sejong University, Gwangjin-gu, Gunja-dong 98, Seoul 05006, Korea
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Received: 28 November 2017 / Revised: 19 January 2018 / Accepted: 22 January 2018 / Published: 29 January 2018
(This article belongs to the Special Issue Advanced Internet of Things for Smart Infrastructure System)
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Abstract

Digital radio mondiale (DRM) is a terrestrial radio broadcasting standard to replace existing analogue AM and FM broadcasting, which is based on an orthogonal frequency division multiplexing (OFDM) technique. This paper focuses on the issue of estimating a sampling frequency offset (SFO) in OFDM-based broadcasting systems under frequency selective fading channels. In order to design a robust SFO estimation scheme and to benchmark its performance, the performance of the various conventional SFO estimation schemes is discussed and some improvements on the conventional estimation algorithms are highlighted. The simulation results show that such a design enhances the robustness of the proposed scheme against frequency selective fading. View Full-Text
Keywords: digital radio mondiale; orthogonal frequency division multiplexing; sampling frequency offset; frequency selective fading digital radio mondiale; orthogonal frequency division multiplexing; sampling frequency offset; frequency selective fading
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Jung, Y.-A.; You, Y.-H. Robust Sampling Frequency Offset Estimation for OFDM over Frequency Selective Fading Channels. Appl. Sci. 2018, 8, 197.

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