Simultaneous Wireless Information and Power Transfer Based on Joint Subcarrier and Power Allocation in OFDM Systems
Energy harvesting (EH) is a prominent method to extend the operation time of energy-limited wireless networks. By integrating EH into wireless communications, the same spectrum is able to be used by simultaneous wireless information and power transfer (SWIPT) without affecting the quality of service...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2017-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7859341/ |
| _version_ | 1818457649558061056 |
|---|---|
| author | Weidang Lu Yi Gong Jiaying Wu Hong Peng Jingyu Hua |
| author_facet | Weidang Lu Yi Gong Jiaying Wu Hong Peng Jingyu Hua |
| author_sort | Weidang Lu |
| collection | DOAJ |
| description | Energy harvesting (EH) is a prominent method to extend the operation time of energy-limited wireless networks. By integrating EH into wireless communications, the same spectrum is able to be used by simultaneous wireless information and power transfer (SWIPT) without affecting the quality of service. In this paper, we propose a joint subcarrier and power allocation-based SWIPT scheme in orthogonal frequency division multiplexing (OFDM) systems. Specifically, the received OFDM subcarriers are partitioned into two groups. A fraction of the received subcarriers are allocated to form one group, which is used for information decoding (ID), and the remaining subcarriers form the other group, which is used for energy harvesting. Thus, no splitter is needed at the receiver. A joint subcarrier and power allocation problem is formulated to maximize the harvested energy, subject to the ID constraint. By using the dual decomposition method, an efficient algorithm is proposed to solve this joint resource allocation problem. |
| first_indexed | 2024-12-14T22:45:55Z |
| format | Article |
| id | doaj.art-7086242e88354f7fabe3b60ae70eef08 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-14T22:45:55Z |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-7086242e88354f7fabe3b60ae70eef082022-12-21T22:44:51ZengIEEEIEEE Access2169-35362017-01-0152763277010.1109/ACCESS.2017.26719037859341Simultaneous Wireless Information and Power Transfer Based on Joint Subcarrier and Power Allocation in OFDM SystemsWeidang Lu0https://orcid.org/0000-0002-8919-0327Yi Gong1https://orcid.org/0000-0001-7392-8991Jiaying Wu2Hong Peng3Jingyu Hua4College of Information Engineering, Zhejiang University of Technology, Hangzhou, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaCollege of Information Engineering, Zhejiang University of Technology, Hangzhou, ChinaCollege of Information Engineering, Zhejiang University of Technology, Hangzhou, ChinaCollege of Information Engineering, Zhejiang University of Technology, Hangzhou, ChinaEnergy harvesting (EH) is a prominent method to extend the operation time of energy-limited wireless networks. By integrating EH into wireless communications, the same spectrum is able to be used by simultaneous wireless information and power transfer (SWIPT) without affecting the quality of service. In this paper, we propose a joint subcarrier and power allocation-based SWIPT scheme in orthogonal frequency division multiplexing (OFDM) systems. Specifically, the received OFDM subcarriers are partitioned into two groups. A fraction of the received subcarriers are allocated to form one group, which is used for information decoding (ID), and the remaining subcarriers form the other group, which is used for energy harvesting. Thus, no splitter is needed at the receiver. A joint subcarrier and power allocation problem is formulated to maximize the harvested energy, subject to the ID constraint. By using the dual decomposition method, an efficient algorithm is proposed to solve this joint resource allocation problem.https://ieeexplore.ieee.org/document/7859341/Simultaneous wireless information and power transfer (SWIPT)subcarrier allocationpower allocationorthogonal frequency division multiplexing (OFDM) |
| spellingShingle | Weidang Lu Yi Gong Jiaying Wu Hong Peng Jingyu Hua Simultaneous Wireless Information and Power Transfer Based on Joint Subcarrier and Power Allocation in OFDM Systems IEEE Access Simultaneous wireless information and power transfer (SWIPT) subcarrier allocation power allocation orthogonal frequency division multiplexing (OFDM) |
| title | Simultaneous Wireless Information and Power Transfer Based on Joint Subcarrier and Power Allocation in OFDM Systems |
| title_full | Simultaneous Wireless Information and Power Transfer Based on Joint Subcarrier and Power Allocation in OFDM Systems |
| title_fullStr | Simultaneous Wireless Information and Power Transfer Based on Joint Subcarrier and Power Allocation in OFDM Systems |
| title_full_unstemmed | Simultaneous Wireless Information and Power Transfer Based on Joint Subcarrier and Power Allocation in OFDM Systems |
| title_short | Simultaneous Wireless Information and Power Transfer Based on Joint Subcarrier and Power Allocation in OFDM Systems |
| title_sort | simultaneous wireless information and power transfer based on joint subcarrier and power allocation in ofdm systems |
| topic | Simultaneous wireless information and power transfer (SWIPT) subcarrier allocation power allocation orthogonal frequency division multiplexing (OFDM) |
| url | https://ieeexplore.ieee.org/document/7859341/ |
| work_keys_str_mv | AT weidanglu simultaneouswirelessinformationandpowertransferbasedonjointsubcarrierandpowerallocationinofdmsystems AT yigong simultaneouswirelessinformationandpowertransferbasedonjointsubcarrierandpowerallocationinofdmsystems AT jiayingwu simultaneouswirelessinformationandpowertransferbasedonjointsubcarrierandpowerallocationinofdmsystems AT hongpeng simultaneouswirelessinformationandpowertransferbasedonjointsubcarrierandpowerallocationinofdmsystems AT jingyuhua simultaneouswirelessinformationandpowertransferbasedonjointsubcarrierandpowerallocationinofdmsystems |