Efficient Joint Estimation of Carrier Frequency and Sampling Frequency Offsets for MIMO-OFDM ATSC Systems
Multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) is appealing for the provision of high spectral efficiency in digital terrestrial broadcast systems. To fully obtain its advantageous features, it is very important to remove the frequency mismatch between the tran...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-10-01
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| Series: | Symmetry |
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| Online Access: | https://www.mdpi.com/2073-8994/10/11/554 |
| _version_ | 1818039259340210176 |
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| author | Yong-An Jung Young-Hwan You |
| author_facet | Yong-An Jung Young-Hwan You |
| author_sort | Yong-An Jung |
| collection | DOAJ |
| description | Multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) is appealing for the provision of high spectral efficiency in digital terrestrial broadcast systems. To fully obtain its advantageous features, it is very important to remove the frequency mismatch between the transmitter and the receiver. In this paper, we present the performance analysis of joint estimation of carrier and sampling frequency offsets in the MIMO-OFDM-based advanced television systems committee (ATSC) 3.0 system. In the MIMO-OFDM ATSC system, the continual pilot (CP) is primarily utilized to perform frequency synchronization. To efficiently suppress an unwanted bias introduced by the presence of random-likely located CPs, an optimal pilot subset is selected to form the basis of least squares frequency-offset estimation. A closed-form mean squared error is derived in the context of MIMO-OFDM, considering the multipath fading channel. We show via computer simulations and numerical analysis that the proposed estimation method achieves higher estimation accuracy than the existing estimation method. |
| first_indexed | 2024-12-10T07:55:47Z |
| format | Article |
| id | doaj.art-13e774529c194050b9dfae940a4a572c |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-12-10T07:55:47Z |
| publishDate | 2018-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-13e774529c194050b9dfae940a4a572c2022-12-22T01:56:54ZengMDPI AGSymmetry2073-89942018-10-01101155410.3390/sym10110554sym10110554Efficient Joint Estimation of Carrier Frequency and Sampling Frequency Offsets for MIMO-OFDM ATSC SystemsYong-An Jung0Young-Hwan You1Department of Computer Engineering, Sejong University, Gwangjin-gu, Gunja-dong 98, Seoul 05006, KoreaDepartment of Computer Engineering, Sejong University, Gwangjin-gu, Gunja-dong 98, Seoul 05006, KoreaMultiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) is appealing for the provision of high spectral efficiency in digital terrestrial broadcast systems. To fully obtain its advantageous features, it is very important to remove the frequency mismatch between the transmitter and the receiver. In this paper, we present the performance analysis of joint estimation of carrier and sampling frequency offsets in the MIMO-OFDM-based advanced television systems committee (ATSC) 3.0 system. In the MIMO-OFDM ATSC system, the continual pilot (CP) is primarily utilized to perform frequency synchronization. To efficiently suppress an unwanted bias introduced by the presence of random-likely located CPs, an optimal pilot subset is selected to form the basis of least squares frequency-offset estimation. A closed-form mean squared error is derived in the context of MIMO-OFDM, considering the multipath fading channel. We show via computer simulations and numerical analysis that the proposed estimation method achieves higher estimation accuracy than the existing estimation method.https://www.mdpi.com/2073-8994/10/11/554Multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM)advanced television systems committee (ATSC) 3.0frequency offsetpilot subset |
| spellingShingle | Yong-An Jung Young-Hwan You Efficient Joint Estimation of Carrier Frequency and Sampling Frequency Offsets for MIMO-OFDM ATSC Systems Symmetry Multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) advanced television systems committee (ATSC) 3.0 frequency offset pilot subset |
| title | Efficient Joint Estimation of Carrier Frequency and Sampling Frequency Offsets for MIMO-OFDM ATSC Systems |
| title_full | Efficient Joint Estimation of Carrier Frequency and Sampling Frequency Offsets for MIMO-OFDM ATSC Systems |
| title_fullStr | Efficient Joint Estimation of Carrier Frequency and Sampling Frequency Offsets for MIMO-OFDM ATSC Systems |
| title_full_unstemmed | Efficient Joint Estimation of Carrier Frequency and Sampling Frequency Offsets for MIMO-OFDM ATSC Systems |
| title_short | Efficient Joint Estimation of Carrier Frequency and Sampling Frequency Offsets for MIMO-OFDM ATSC Systems |
| title_sort | efficient joint estimation of carrier frequency and sampling frequency offsets for mimo ofdm atsc systems |
| topic | Multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) advanced television systems committee (ATSC) 3.0 frequency offset pilot subset |
| url | https://www.mdpi.com/2073-8994/10/11/554 |
| work_keys_str_mv | AT yonganjung efficientjointestimationofcarrierfrequencyandsamplingfrequencyoffsetsformimoofdmatscsystems AT younghwanyou efficientjointestimationofcarrierfrequencyandsamplingfrequencyoffsetsformimoofdmatscsystems |