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Symmetry 2018, 10(9), 379; https://doi.org/10.3390/sym10090379

Effective Blind Frequency Offset Estimation Scheme for BST-OFDM Based HDTV Broadcast Systems

Department of Computer Engineering, Sejong University, Gwangjin-gu, Gunja-dong 98, Seoul 05006, Korea
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Received: 17 July 2018 / Revised: 27 August 2018 / Accepted: 29 August 2018 / Published: 3 September 2018
(This article belongs to the Special Issue Symmetry in Computing Theory and Application)
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Abstract

The integrated services digital broadcasting-terrestrial (ISDB-T) system is designed in order to accommodate high-quality video/audio and multimedia services, using band segmented transmission orthogonal frequency division multiplexing (BST-OFDM) scheme. In the ISDB-T system, the pilot configuration varies depending on whether a segment uses a coherent or differential modulation. Therefore, it is necessary to perform a joint estimation of carrier frequency offset (CFO) and sampling frequency offset (SFO) independent of the segment format in the ISDB-T system. The goal is to complete those synchronization tasks while considering an information-carrying transmission and multiplexing configuration control (TMCC) signal as pilot symbols. It is demonstrated through numerical simulations that the differential BPSK-modulated TMCC information can be efficiently used for a least-squares estimation of CFO and SFO, offering an acceptable performance. View Full-Text
Keywords: orthogonal frequency division multiplexing; ISDB-T; carrier frequency offset; sampling frequency offset; least-squares estimation; TMCC orthogonal frequency division multiplexing; ISDB-T; carrier frequency offset; sampling frequency offset; least-squares estimation; TMCC
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Jung, Y.-A.; You, Y.-H. Effective Blind Frequency Offset Estimation Scheme for BST-OFDM Based HDTV Broadcast Systems. Symmetry 2018, 10, 379.

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