Pilot Design for Sparse Channel Estimation in Large-Scale MIMO-OFDM System
The pilot design problem in large-scale multi-input-multioutput orthogonal frequency division multiplexing (MIMO-OFDM) system is investigated from the perspective of compressed sensing (CS). According to the CS theory, the success probability of estimation is dependent on the mutual coherence of the...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2016/6142574 |
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| _version_ | 1832567614614798336 |
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| author | Chao Xu Jianhua Zhang Mengmeng Liu Changchuan Yin |
| author_facet | Chao Xu Jianhua Zhang Mengmeng Liu Changchuan Yin |
| author_sort | Chao Xu |
| collection | DOAJ |
| description | The pilot design problem in large-scale multi-input-multioutput orthogonal frequency division multiplexing (MIMO-OFDM) system is investigated from the perspective of compressed sensing (CS). According to the CS theory, the success probability of estimation is dependent on the mutual coherence of the reconstruction matrix. Specifically, the smaller the mutual coherence is, the higher the success probability is. Based on this conclusion, this paper proposes a pilot design algorithm based on alternating projection and obtains a nonorthogonal pilot pattern. Simulation results show that applying the proposed pattern gives the better performance compared to applying conventional orthogonal one in terms of normalized mean square error (NMSE) of the channel estimate. Moreover, the bit error rate (BER) performance of the large-scale MIMO-OFDM system is improved. |
| format | Article |
| id | doaj-art-b7a3b201c5f440e8ab68bab4e68650d6 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-b7a3b201c5f440e8ab68bab4e68650d62025-02-03T01:01:02ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772016-01-01201610.1155/2016/61425746142574Pilot Design for Sparse Channel Estimation in Large-Scale MIMO-OFDM SystemChao Xu0Jianhua Zhang1Mengmeng Liu2Changchuan Yin3Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaKey Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaKey Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaKey Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaThe pilot design problem in large-scale multi-input-multioutput orthogonal frequency division multiplexing (MIMO-OFDM) system is investigated from the perspective of compressed sensing (CS). According to the CS theory, the success probability of estimation is dependent on the mutual coherence of the reconstruction matrix. Specifically, the smaller the mutual coherence is, the higher the success probability is. Based on this conclusion, this paper proposes a pilot design algorithm based on alternating projection and obtains a nonorthogonal pilot pattern. Simulation results show that applying the proposed pattern gives the better performance compared to applying conventional orthogonal one in terms of normalized mean square error (NMSE) of the channel estimate. Moreover, the bit error rate (BER) performance of the large-scale MIMO-OFDM system is improved.http://dx.doi.org/10.1155/2016/6142574 |
| spellingShingle | Chao Xu Jianhua Zhang Mengmeng Liu Changchuan Yin Pilot Design for Sparse Channel Estimation in Large-Scale MIMO-OFDM System International Journal of Antennas and Propagation |
| title | Pilot Design for Sparse Channel Estimation in Large-Scale MIMO-OFDM System |
| title_full | Pilot Design for Sparse Channel Estimation in Large-Scale MIMO-OFDM System |
| title_fullStr | Pilot Design for Sparse Channel Estimation in Large-Scale MIMO-OFDM System |
| title_full_unstemmed | Pilot Design for Sparse Channel Estimation in Large-Scale MIMO-OFDM System |
| title_short | Pilot Design for Sparse Channel Estimation in Large-Scale MIMO-OFDM System |
| title_sort | pilot design for sparse channel estimation in large scale mimo ofdm system |
| url | http://dx.doi.org/10.1155/2016/6142574 |
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