Beamforming Design for Full-Duplex SWIPT with Co-Channel Interference in Wireless Sensor Systems
The simultaneous wireless information and power transfer (SWIPT) technique has been regarded as an appealing approach to prolong the lifetime of wireless sensor networks. However, co-channel interferences with SWIPT in wireless networks have not been investigated from a green communication perspecti...
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| Format: | Article |
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MDPI AG
2018-10-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/10/3362 |
| _version_ | 1828153799701692416 |
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| author | Xiaoqing Liu Yinglin Jia Zhigang Wen Junwei Zou Shan Li |
| author_facet | Xiaoqing Liu Yinglin Jia Zhigang Wen Junwei Zou Shan Li |
| author_sort | Xiaoqing Liu |
| collection | DOAJ |
| description | The simultaneous wireless information and power transfer (SWIPT) technique has been regarded as an appealing approach to prolong the lifetime of wireless sensor networks. However, co-channel interferences with SWIPT in wireless networks have not been investigated from a green communication perspective. In this paper, joint transmit and receive beamforming design for a full-duplex multiple-input multiple-output amplify-and-forward relay system with simultaneous wireless information and power transfer in WSNs is investigated. Multiple co-channel interferers are considered at the relay and destination sensor nodes. To minimize the mean-squared-error of the system, joint source and relay beamforming optimization is proposed while guaranteeing the transmit power constraints and destination’s energy harvesting constraint. An iterative algorithm based on alternating optimization with successive convex approximation which converges to a local optimum is proposed to solve the non-convex problem. Moreover, a low-complexity scheme is derived to reduce the computational complexity. Simulations for MSE versus iterations and MSE versus signal-to-noise ratio (SNR) demonstrate the convergence and good performance of the proposed schemes. |
| first_indexed | 2024-04-11T22:30:46Z |
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| id | doaj.art-07338668c54a4140a657f74a69c3616a |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:30:46Z |
| publishDate | 2018-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-07338668c54a4140a657f74a69c3616a2022-12-22T03:59:26ZengMDPI AGSensors1424-82202018-10-011810336210.3390/s18103362s18103362Beamforming Design for Full-Duplex SWIPT with Co-Channel Interference in Wireless Sensor SystemsXiaoqing Liu0Yinglin Jia1Zhigang Wen2Junwei Zou3Shan Li4Beijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaBeijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaBeijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaBeijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaBeijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaThe simultaneous wireless information and power transfer (SWIPT) technique has been regarded as an appealing approach to prolong the lifetime of wireless sensor networks. However, co-channel interferences with SWIPT in wireless networks have not been investigated from a green communication perspective. In this paper, joint transmit and receive beamforming design for a full-duplex multiple-input multiple-output amplify-and-forward relay system with simultaneous wireless information and power transfer in WSNs is investigated. Multiple co-channel interferers are considered at the relay and destination sensor nodes. To minimize the mean-squared-error of the system, joint source and relay beamforming optimization is proposed while guaranteeing the transmit power constraints and destination’s energy harvesting constraint. An iterative algorithm based on alternating optimization with successive convex approximation which converges to a local optimum is proposed to solve the non-convex problem. Moreover, a low-complexity scheme is derived to reduce the computational complexity. Simulations for MSE versus iterations and MSE versus signal-to-noise ratio (SNR) demonstrate the convergence and good performance of the proposed schemes.http://www.mdpi.com/1424-8220/18/10/3362amplify-and-forward relay systemco-channel interferersfull-dupleximperfect channel state informationsimultaneous wireless information and power transfersuccessive convex approximationwireless sensor networks |
| spellingShingle | Xiaoqing Liu Yinglin Jia Zhigang Wen Junwei Zou Shan Li Beamforming Design for Full-Duplex SWIPT with Co-Channel Interference in Wireless Sensor Systems Sensors amplify-and-forward relay system co-channel interferers full-duplex imperfect channel state information simultaneous wireless information and power transfer successive convex approximation wireless sensor networks |
| title | Beamforming Design for Full-Duplex SWIPT with Co-Channel Interference in Wireless Sensor Systems |
| title_full | Beamforming Design for Full-Duplex SWIPT with Co-Channel Interference in Wireless Sensor Systems |
| title_fullStr | Beamforming Design for Full-Duplex SWIPT with Co-Channel Interference in Wireless Sensor Systems |
| title_full_unstemmed | Beamforming Design for Full-Duplex SWIPT with Co-Channel Interference in Wireless Sensor Systems |
| title_short | Beamforming Design for Full-Duplex SWIPT with Co-Channel Interference in Wireless Sensor Systems |
| title_sort | beamforming design for full duplex swipt with co channel interference in wireless sensor systems |
| topic | amplify-and-forward relay system co-channel interferers full-duplex imperfect channel state information simultaneous wireless information and power transfer successive convex approximation wireless sensor networks |
| url | http://www.mdpi.com/1424-8220/18/10/3362 |
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