Physical Layer Security and Optimal Multi-Time-Slot Power Allocation of SWIPT System Powered by Hybrid Energy
In this paper, a new approach is proposed to solve the constrained optimization problem of saving grid energy and increasing safety in a simultaneous wireless information and power transfer (SWIPT) system. The traditional grid energy is combined with the renewable energy to form a hybrid energy, whi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-08-01
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| Series: | Information |
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| Online Access: | https://www.mdpi.com/2078-2489/8/3/100 |
| _version_ | 1819208992785694720 |
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| author | Dandan Guo Baogang Li Wei Zhao |
| author_facet | Dandan Guo Baogang Li Wei Zhao |
| author_sort | Dandan Guo |
| collection | DOAJ |
| description | In this paper, a new approach is proposed to solve the constrained optimization problem of saving grid energy and increasing safety in a simultaneous wireless information and power transfer (SWIPT) system. The traditional grid energy is combined with the renewable energy to form a hybrid energy, which provides power for the system to achieve green wireless transmission. The transfer process of SWIPT system is divided into multiple time slots. The renewable energy is harvested and stored in battery at each time slot. A multi-time-slot artificial noise-assisted transmission strategy is proposed to reduce the signal to noise ratio (SNR) of eavesdropping link. A power allocation algorithm based on multi-time-slot golden section is given, which performs one-dimensional search on the power ratio of artificial noise to determine the transmit power of source node. And then the allocation algorithm is utilized to dynamically configure the harvested renewable energy for each time slot. When the battery capacity is constant, the maximum renewable energy is being used to reduce the grid power consumption. Finally, the performances of proposed schemes are evaluated by simulations in terms of various tradeoffs. |
| first_indexed | 2024-12-23T05:48:12Z |
| format | Article |
| id | doaj.art-6aadee188abe41278e6f2e91b45d405e |
| institution | Directory Open Access Journal |
| issn | 2078-2489 |
| language | English |
| last_indexed | 2024-12-23T05:48:12Z |
| publishDate | 2017-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Information |
| spelling | doaj.art-6aadee188abe41278e6f2e91b45d405e2022-12-21T17:58:02ZengMDPI AGInformation2078-24892017-08-018310010.3390/info8030100info8030100Physical Layer Security and Optimal Multi-Time-Slot Power Allocation of SWIPT System Powered by Hybrid EnergyDandan Guo0Baogang Li1Wei Zhao2Department of Electronic and Communication Engineering, North China Electric Power University, Baoding 071003, ChinaDepartment of Electronic and Communication Engineering, North China Electric Power University, Baoding 071003, ChinaDepartment of Electronic and Communication Engineering, North China Electric Power University, Baoding 071003, ChinaIn this paper, a new approach is proposed to solve the constrained optimization problem of saving grid energy and increasing safety in a simultaneous wireless information and power transfer (SWIPT) system. The traditional grid energy is combined with the renewable energy to form a hybrid energy, which provides power for the system to achieve green wireless transmission. The transfer process of SWIPT system is divided into multiple time slots. The renewable energy is harvested and stored in battery at each time slot. A multi-time-slot artificial noise-assisted transmission strategy is proposed to reduce the signal to noise ratio (SNR) of eavesdropping link. A power allocation algorithm based on multi-time-slot golden section is given, which performs one-dimensional search on the power ratio of artificial noise to determine the transmit power of source node. And then the allocation algorithm is utilized to dynamically configure the harvested renewable energy for each time slot. When the battery capacity is constant, the maximum renewable energy is being used to reduce the grid power consumption. Finally, the performances of proposed schemes are evaluated by simulations in terms of various tradeoffs.https://www.mdpi.com/2078-2489/8/3/100renewable energymulti-slot artificial noiseSWIPTtime slots divisionpower allocation |
| spellingShingle | Dandan Guo Baogang Li Wei Zhao Physical Layer Security and Optimal Multi-Time-Slot Power Allocation of SWIPT System Powered by Hybrid Energy Information renewable energy multi-slot artificial noise SWIPT time slots division power allocation |
| title | Physical Layer Security and Optimal Multi-Time-Slot Power Allocation of SWIPT System Powered by Hybrid Energy |
| title_full | Physical Layer Security and Optimal Multi-Time-Slot Power Allocation of SWIPT System Powered by Hybrid Energy |
| title_fullStr | Physical Layer Security and Optimal Multi-Time-Slot Power Allocation of SWIPT System Powered by Hybrid Energy |
| title_full_unstemmed | Physical Layer Security and Optimal Multi-Time-Slot Power Allocation of SWIPT System Powered by Hybrid Energy |
| title_short | Physical Layer Security and Optimal Multi-Time-Slot Power Allocation of SWIPT System Powered by Hybrid Energy |
| title_sort | physical layer security and optimal multi time slot power allocation of swipt system powered by hybrid energy |
| topic | renewable energy multi-slot artificial noise SWIPT time slots division power allocation |
| url | https://www.mdpi.com/2078-2489/8/3/100 |
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