Interference suppression through power allocation for massive MIMO systems with channel aging
© 2017 IEEE. To acquire an optimum potential of massive multiple-input multiple-output (MIMO), congruity between pre-coder and the actual channel is required. This circumstance, however, is hard to obtain when the mobile station (MS) is moving in a multipath environment and experiencing channel agin...
| Main Authors: | , , , |
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| Format: | Conference Paper |
| Published: |
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/71079 |
| _version_ | 1848762383874392064 |
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| author | Shubhi, I. Pamungkasari, P. Juwono, Filbert Hilman Dharmanto, S. |
| author_facet | Shubhi, I. Pamungkasari, P. Juwono, Filbert Hilman Dharmanto, S. |
| author_sort | Shubhi, I. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2017 IEEE. To acquire an optimum potential of massive multiple-input multiple-output (MIMO), congruity between pre-coder and the actual channel is required. This circumstance, however, is hard to obtain when the mobile station (MS) is moving in a multipath environment and experiencing channel aging. Suffering channel aging, a mismatch between the precoder matrix and the actual channel matrix occurs which causes interuser interference at the MS. To tackle this problem, we propose a channel prediction based power allocation technique for time-varying massive MIMO. First, we estimate Doppler shift experienced by the BS to create a channel prediction. Afterward, we conduct recursive power allocation with the goal of minimizing channel aging effect at the MS. Using the proposed technique, each MS only suffers a certain interference level which still can be handled by the MS. Through computer simulation, it is shown that our proposed technique enables the time-varying massive MIMO transmission without a significant addition to computational complexity. |
| first_indexed | 2025-11-14T10:46:42Z |
| format | Conference Paper |
| id | curtin-20.500.11937-71079 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:46:42Z |
| publishDate | 2018 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-710792018-12-13T09:32:50Z Interference suppression through power allocation for massive MIMO systems with channel aging Shubhi, I. Pamungkasari, P. Juwono, Filbert Hilman Dharmanto, S. © 2017 IEEE. To acquire an optimum potential of massive multiple-input multiple-output (MIMO), congruity between pre-coder and the actual channel is required. This circumstance, however, is hard to obtain when the mobile station (MS) is moving in a multipath environment and experiencing channel aging. Suffering channel aging, a mismatch between the precoder matrix and the actual channel matrix occurs which causes interuser interference at the MS. To tackle this problem, we propose a channel prediction based power allocation technique for time-varying massive MIMO. First, we estimate Doppler shift experienced by the BS to create a channel prediction. Afterward, we conduct recursive power allocation with the goal of minimizing channel aging effect at the MS. Using the proposed technique, each MS only suffers a certain interference level which still can be handled by the MS. Through computer simulation, it is shown that our proposed technique enables the time-varying massive MIMO transmission without a significant addition to computational complexity. 2018 Conference Paper http://hdl.handle.net/20.500.11937/71079 10.1109/WPMC.2017.8301858 restricted |
| spellingShingle | Shubhi, I. Pamungkasari, P. Juwono, Filbert Hilman Dharmanto, S. Interference suppression through power allocation for massive MIMO systems with channel aging |
| title | Interference suppression through power allocation for massive MIMO systems with channel aging |
| title_full | Interference suppression through power allocation for massive MIMO systems with channel aging |
| title_fullStr | Interference suppression through power allocation for massive MIMO systems with channel aging |
| title_full_unstemmed | Interference suppression through power allocation for massive MIMO systems with channel aging |
| title_short | Interference suppression through power allocation for massive MIMO systems with channel aging |
| title_sort | interference suppression through power allocation for massive mimo systems with channel aging |
| url | http://hdl.handle.net/20.500.11937/71079 |