Robust Beamforming for Multi-User MISO Full-Duplex SWIPT System Under Non-Linear Energy Harvesting Model
In this article, we investigate a multi-user multiple-input-single-output full-duplex system with simultaneous wireless information and power transfer under the non-linear energy harvesting model, where channel state information is imperfect. Since the channel estimation error is considered in our p...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2021-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9328389/ |
| _version_ | 1818736284846260224 |
|---|---|
| author | Lanfang Zheng Dan Liu Zhigang Wen Junwei Zou |
| author_facet | Lanfang Zheng Dan Liu Zhigang Wen Junwei Zou |
| author_sort | Lanfang Zheng |
| collection | DOAJ |
| description | In this article, we investigate a multi-user multiple-input-single-output full-duplex system with simultaneous wireless information and power transfer under the non-linear energy harvesting model, where channel state information is imperfect. Since the channel estimation error is considered in our proposed system, the self-interference cannot be canceled perfectly. For such a system, a robust optimization problem that maximizes the minimum average total harvested power by jointly optimizing the uplink and downlink beamforming matrices is formulated. As the problem is non-linear and non-convex under channel estimation errors, a novel Newton method based iterative optimization algorithm is proposed to solve it efficiently. In each iteration, the semidefinite relaxation technique and S-Procedure method are applied to obtain the optimal beamforming vectors, which are proved to be optimal solutions with rank-one. Simulation results reveal that the proposed robust design can achieve better system performance than the non-robust scheme, both of which are based on the non-linear energy harvesting model. |
| first_indexed | 2024-12-18T00:34:43Z |
| format | Article |
| id | doaj.art-ebd066a6efd34722a5a2c6a6c977d6d7 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-18T00:34:43Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-ebd066a6efd34722a5a2c6a6c977d6d72022-12-21T21:27:04ZengIEEEIEEE Access2169-35362021-01-019143871439710.1109/ACCESS.2021.30523439328389Robust Beamforming for Multi-User MISO Full-Duplex SWIPT System Under Non-Linear Energy Harvesting ModelLanfang Zheng0https://orcid.org/0000-0003-0436-4154Dan Liu1https://orcid.org/0000-0002-6426-625XZhigang Wen2https://orcid.org/0000-0002-0562-4539Junwei Zou3Beijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, ChinaBeijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, ChinaBeijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, ChinaBeijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, ChinaIn this article, we investigate a multi-user multiple-input-single-output full-duplex system with simultaneous wireless information and power transfer under the non-linear energy harvesting model, where channel state information is imperfect. Since the channel estimation error is considered in our proposed system, the self-interference cannot be canceled perfectly. For such a system, a robust optimization problem that maximizes the minimum average total harvested power by jointly optimizing the uplink and downlink beamforming matrices is formulated. As the problem is non-linear and non-convex under channel estimation errors, a novel Newton method based iterative optimization algorithm is proposed to solve it efficiently. In each iteration, the semidefinite relaxation technique and S-Procedure method are applied to obtain the optimal beamforming vectors, which are proved to be optimal solutions with rank-one. Simulation results reveal that the proposed robust design can achieve better system performance than the non-robust scheme, both of which are based on the non-linear energy harvesting model.https://ieeexplore.ieee.org/document/9328389/Full-duplexmulti-usernon-linear energy harvestingrobust beamformingsimultaneous wireless information and power transfer |
| spellingShingle | Lanfang Zheng Dan Liu Zhigang Wen Junwei Zou Robust Beamforming for Multi-User MISO Full-Duplex SWIPT System Under Non-Linear Energy Harvesting Model IEEE Access Full-duplex multi-user non-linear energy harvesting robust beamforming simultaneous wireless information and power transfer |
| title | Robust Beamforming for Multi-User MISO Full-Duplex SWIPT System Under Non-Linear Energy Harvesting Model |
| title_full | Robust Beamforming for Multi-User MISO Full-Duplex SWIPT System Under Non-Linear Energy Harvesting Model |
| title_fullStr | Robust Beamforming for Multi-User MISO Full-Duplex SWIPT System Under Non-Linear Energy Harvesting Model |
| title_full_unstemmed | Robust Beamforming for Multi-User MISO Full-Duplex SWIPT System Under Non-Linear Energy Harvesting Model |
| title_short | Robust Beamforming for Multi-User MISO Full-Duplex SWIPT System Under Non-Linear Energy Harvesting Model |
| title_sort | robust beamforming for multi user miso full duplex swipt system under non linear energy harvesting model |
| topic | Full-duplex multi-user non-linear energy harvesting robust beamforming simultaneous wireless information and power transfer |
| url | https://ieeexplore.ieee.org/document/9328389/ |
| work_keys_str_mv | AT lanfangzheng robustbeamformingformultiusermisofullduplexswiptsystemundernonlinearenergyharvestingmodel AT danliu robustbeamformingformultiusermisofullduplexswiptsystemundernonlinearenergyharvestingmodel AT zhigangwen robustbeamformingformultiusermisofullduplexswiptsystemundernonlinearenergyharvestingmodel AT junweizou robustbeamformingformultiusermisofullduplexswiptsystemundernonlinearenergyharvestingmodel |