Some interesting properties for zero-forcing beamforming under per-antenna power constraints in rural areas
Providing broadband services in the rural area is a challenging work. Multi-user multiple-input multiple-output (MU-MIMO) systems can be applied to increase spectral efficiency. One of the most commonly used method in MU-MIMO broadcast channel is zero-forcing beamforming (ZFBF) since it provides a g...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Springer
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/61362 |
| _version_ | 1848760682327048192 |
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| author | Li, Bin Dam, Hai Huyen Heidi Cantoni, A. Teo, Kok Lay |
| author_facet | Li, Bin Dam, Hai Huyen Heidi Cantoni, A. Teo, Kok Lay |
| author_sort | Li, Bin |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Providing broadband services in the rural area is a challenging work. Multi-user multiple-input multiple-output (MU-MIMO) systems can be applied to increase spectral efficiency. One of the most commonly used method in MU-MIMO broadcast channel is zero-forcing beamforming (ZFBF) since it provides a good trade off between complexity and performance. In this paper, we consider the ZFBF under the per-antenna power constraints. Particularly, a deterministic line-of-sight modeling of the downlink channels is adopted. To reduce the computational complexity, we consider the problem in which all the equality constraints are eliminated. By examining the KKT optimality conditions and the properties of the channel, some interesting properties are revealed. |
| first_indexed | 2025-11-14T10:19:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-61362 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:19:39Z |
| publishDate | 2015 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-613622018-01-30T08:25:03Z Some interesting properties for zero-forcing beamforming under per-antenna power constraints in rural areas Li, Bin Dam, Hai Huyen Heidi Cantoni, A. Teo, Kok Lay Providing broadband services in the rural area is a challenging work. Multi-user multiple-input multiple-output (MU-MIMO) systems can be applied to increase spectral efficiency. One of the most commonly used method in MU-MIMO broadcast channel is zero-forcing beamforming (ZFBF) since it provides a good trade off between complexity and performance. In this paper, we consider the ZFBF under the per-antenna power constraints. Particularly, a deterministic line-of-sight modeling of the downlink channels is adopted. To reduce the computational complexity, we consider the problem in which all the equality constraints are eliminated. By examining the KKT optimality conditions and the properties of the channel, some interesting properties are revealed. 2015 Journal Article http://hdl.handle.net/20.500.11937/61362 10.1007/s10898-014-0237-4 Springer restricted |
| spellingShingle | Li, Bin Dam, Hai Huyen Heidi Cantoni, A. Teo, Kok Lay Some interesting properties for zero-forcing beamforming under per-antenna power constraints in rural areas |
| title | Some interesting properties for zero-forcing beamforming under per-antenna power constraints in rural areas |
| title_full | Some interesting properties for zero-forcing beamforming under per-antenna power constraints in rural areas |
| title_fullStr | Some interesting properties for zero-forcing beamforming under per-antenna power constraints in rural areas |
| title_full_unstemmed | Some interesting properties for zero-forcing beamforming under per-antenna power constraints in rural areas |
| title_short | Some interesting properties for zero-forcing beamforming under per-antenna power constraints in rural areas |
| title_sort | some interesting properties for zero-forcing beamforming under per-antenna power constraints in rural areas |
| url | http://hdl.handle.net/20.500.11937/61362 |