RF Energy Harvesting Based Multiple Access Relay Systems: A DMT Perspective
A multiple-access relay system, where the relay node is powered by radio frequency radiation is analyzed in this paper. Specifically, the focus is on the time-switching-based scheme in which the intermediate relay switches between the energy harvesting (EH), information decoding (ID), and the inform...
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8546749/ |
| _version_ | 1828885070370308096 |
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| author | Yepuri Sudhakara Rao A.S. Madhukumar Rajendra Prasad Sirigina |
| author_facet | Yepuri Sudhakara Rao A.S. Madhukumar Rajendra Prasad Sirigina |
| author_sort | Yepuri Sudhakara Rao |
| collection | DOAJ |
| description | A multiple-access relay system, where the relay node is powered by radio frequency radiation is analyzed in this paper. Specifically, the focus is on the time-switching-based scheme in which the intermediate relay switches between the energy harvesting (EH), information decoding (ID), and the information re-transmission (TX). For this system, we have characterized the diversity-multiplexing trade-off (DMT) for two variants of the EH-based dynamic decode-and-forward (DDF) protocols: without feedback (EH-DDF) and with limited feedback (EH-DDF-LF). Analysis of the protocols reveals that the diversity gain of EHDDF scheme is inferior to that of the traditional non-EH-based DDF protocol. Furthermore, the impact of energy harvesting duration on the DMT performance has been extensively investigated. Consequently, it is observed that the achievable diversity gain of the EH-DDF improves with the reduction in energy harvesting interval. However, there exists a performance difference between the classical non-EH-based DDF and EHDDF even for the minute harvest duration. On the other hand, in the case of EH-DDF-LF, the performance approaches the diversity upper bound in the high multiplexing gain regime. Finally, a detailed comparison of the proposed EH-based schemes has been presented. |
| first_indexed | 2024-12-13T11:19:46Z |
| format | Article |
| id | doaj.art-6f18858a04b04ac7a304095b5b4ca1ae |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-13T11:19:46Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-6f18858a04b04ac7a304095b5b4ca1ae2022-12-21T23:48:31ZengIEEEIEEE Access2169-35362018-01-016760757608610.1109/ACCESS.2018.28835058546749RF Energy Harvesting Based Multiple Access Relay Systems: A DMT PerspectiveYepuri Sudhakara Rao0https://orcid.org/0000-0002-3612-0149A.S. Madhukumar1Rajendra Prasad Sirigina2School of Computer Science and Engineering, Nanyang Technological University, SingaporeSchool of Computer Science and Engineering, Nanyang Technological University, SingaporeSchool of Computer Science and Engineering, Nanyang Technological University, SingaporeA multiple-access relay system, where the relay node is powered by radio frequency radiation is analyzed in this paper. Specifically, the focus is on the time-switching-based scheme in which the intermediate relay switches between the energy harvesting (EH), information decoding (ID), and the information re-transmission (TX). For this system, we have characterized the diversity-multiplexing trade-off (DMT) for two variants of the EH-based dynamic decode-and-forward (DDF) protocols: without feedback (EH-DDF) and with limited feedback (EH-DDF-LF). Analysis of the protocols reveals that the diversity gain of EHDDF scheme is inferior to that of the traditional non-EH-based DDF protocol. Furthermore, the impact of energy harvesting duration on the DMT performance has been extensively investigated. Consequently, it is observed that the achievable diversity gain of the EH-DDF improves with the reduction in energy harvesting interval. However, there exists a performance difference between the classical non-EH-based DDF and EHDDF even for the minute harvest duration. On the other hand, in the case of EH-DDF-LF, the performance approaches the diversity upper bound in the high multiplexing gain regime. Finally, a detailed comparison of the proposed EH-based schemes has been presented.https://ieeexplore.ieee.org/document/8546749/Energy harvestingdiversity-multiplexing tradeoff (DMT)dynamic decode and forward (DDF)multiple access relay system (MARS)relays |
| spellingShingle | Yepuri Sudhakara Rao A.S. Madhukumar Rajendra Prasad Sirigina RF Energy Harvesting Based Multiple Access Relay Systems: A DMT Perspective IEEE Access Energy harvesting diversity-multiplexing tradeoff (DMT) dynamic decode and forward (DDF) multiple access relay system (MARS) relays |
| title | RF Energy Harvesting Based Multiple Access Relay Systems: A DMT Perspective |
| title_full | RF Energy Harvesting Based Multiple Access Relay Systems: A DMT Perspective |
| title_fullStr | RF Energy Harvesting Based Multiple Access Relay Systems: A DMT Perspective |
| title_full_unstemmed | RF Energy Harvesting Based Multiple Access Relay Systems: A DMT Perspective |
| title_short | RF Energy Harvesting Based Multiple Access Relay Systems: A DMT Perspective |
| title_sort | rf energy harvesting based multiple access relay systems a dmt perspective |
| topic | Energy harvesting diversity-multiplexing tradeoff (DMT) dynamic decode and forward (DDF) multiple access relay system (MARS) relays |
| url | https://ieeexplore.ieee.org/document/8546749/ |
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