Frequency-Domain Decoupling for MIMO-GFDM Spatial Multiplexing
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2018
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| Acceso en línea: | |
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| _version_ | 1866916457423568896 |
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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 considered a non-orthogonal waveform and known to encounter difficulties when using in the spatial multiplexing mode of multiple-input-multiple-output (MIMO) scenario. In this paper, a class of GFDM prototype filters, under which the GFDM system is free from inter-subcarrier interference, is investigated, enabling frequency-domain decoupling in the processing at the GFDM receiver. An efficient MIMO-GFDM detection method based on depth-first sphere decoding is then proposed with such class of filters. Numerical results confirm a significant reduction in complexity, especially when the number of subcarriers is large, compared with existing methods presented in recent years. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1803_06448 |
| institution | arXiv |
| publishDate | 2018 |
| record_format | arxiv |
| spellingShingle | Frequency-Domain Decoupling for MIMO-GFDM Spatial Multiplexing Tai, Ching-Lun Su, Borching Jia, Cai Information Theory Generalized frequency division multiplexing (GFDM) is considered a non-orthogonal waveform and known to encounter difficulties when using in the spatial multiplexing mode of multiple-input-multiple-output (MIMO) scenario. In this paper, a class of GFDM prototype filters, under which the GFDM system is free from inter-subcarrier interference, is investigated, enabling frequency-domain decoupling in the processing at the GFDM receiver. An efficient MIMO-GFDM detection method based on depth-first sphere decoding is then proposed with such class of filters. Numerical results confirm a significant reduction in complexity, especially when the number of subcarriers is large, compared with existing methods presented in recent years. |
| title | Frequency-Domain Decoupling for MIMO-GFDM Spatial Multiplexing |
| topic | Information Theory |
| url | https://arxiv.org/abs/1803.06448 |