Interference-Precancelled Pilot Design for LMMSE Channel Estimation of GFDM
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866917820133015552 |
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| author | Tai, Ching-Lun Su, Borching Jia, Cai |
| author_facet | Tai, Ching-Lun Su, Borching Jia, Cai |
| contents | Generalized frequency division multiplexing (GFDM) is a promising candidate waveform for next-generation wireless communication systems. However, GFDM channel estimation is still challenging due to the inherent interference. In this paper, we formulate a pilot design framework with linear minimum mean square error (LMMSE) channel estimation for GFDM, and propose a novel pilot design to achieve interference precancellation during pilot generation with the fixed transmit sample values at selected frequency bins. Numerical results demonstrate that the proposed method reduces the channel estimation mean square error and the symbol error rate (SER) in high signal-to-noise ratio (SNR) regions, compared with the conventional methods. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1909_13342 |
| institution | arXiv |
| publishDate | 2019 |
| record_format | arxiv |
| spellingShingle | Interference-Precancelled Pilot Design for LMMSE Channel Estimation of GFDM Tai, Ching-Lun Su, Borching Jia, Cai Information Theory Signal Processing Generalized frequency division multiplexing (GFDM) is a promising candidate waveform for next-generation wireless communication systems. However, GFDM channel estimation is still challenging due to the inherent interference. In this paper, we formulate a pilot design framework with linear minimum mean square error (LMMSE) channel estimation for GFDM, and propose a novel pilot design to achieve interference precancellation during pilot generation with the fixed transmit sample values at selected frequency bins. Numerical results demonstrate that the proposed method reduces the channel estimation mean square error and the symbol error rate (SER) in high signal-to-noise ratio (SNR) regions, compared with the conventional methods. |
| title | Interference-Precancelled Pilot Design for LMMSE Channel Estimation of GFDM |
| topic | Information Theory Signal Processing |
| url | https://arxiv.org/abs/1909.13342 |