Resource Allocation for Wireless-Powered Full-Duplex Relaying Systems With Nonlinear Energy Harvesting Efficiency
DC Field | Value | Language |
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dc.contributor.author | Wei, ZX[Wei, Zhongxiang] | - |
dc.contributor.author | Sun, SM[Sun, Sumei] | - |
dc.contributor.author | Zhu, X[Zhu, Xu] | - |
dc.contributor.author | Kim, DI[Kim, Dong In] | - |
dc.contributor.author | Ng, DWK[Ng, Derrick Wing Kwan] | - |
dc.date.accessioned | 2021-07-28T16:07:36Z | - |
dc.date.available | 2021-07-28T16:07:36Z | - |
dc.date.created | 2020-10-05 | - |
dc.date.issued | 2019-12 | - |
dc.identifier.issn | 0018-9545 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/7955 | - |
dc.description.abstract | In wireless power transfer (WPT)-assisted relaying systems, spectral efficiency (SE) of source-relay link plays a dominant role in system SE performance due to the limited transmission power at the WPT-aided relay. In this paper, we propose a novel protocol for a downlink orthogonal frequency division multiple access (OFDMA) system with a WPT-aided relay operating in full-duplex (FD) decode-and-forward (DF) mode, where the time slot durations of the source-relay and relay-users hops are designed to be dynamic, to enhance the utilization of degrees of freedom and hence the system SE. In particular, a multiple-input and signal-output (MISO) source-relay channel is considered to satisfy the stringent sensitivity of the energy harvesting (EH) circuit at the relay, while a single-input and single-output (SISO) relay-user channel is considered to alleviate the power consumption at the relay node. Taking into account the non-linearity of EH efficiency, a near-optimal iteration-based dynamic WPT-aided FD relaying (A-FR) algorithm is developed by jointly optimizing the time slot durations, subcarriers, and transmission power at the source and the relay. Furthermore, self-interference generated at the relay is utilized as a vital energy source rather than being canceled, which increases substantially the total energy harvested at the FD relay. We also reveal some implicit characteristics of the considered WPT-aided FD relaying system through intensive discussions. Simulation results confirm that the proposed A-FR achieves a significant enhancement in terms of SE with different relay's locations and the number of users, compared to the conventional symmetric WPT-aided FD relaying (S-FR) and the time-switching-based WPT-aided FD relaying (TS-FR) benchmarks. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | OFDMA SYSTEMS | - |
dc.subject | INFORMATION | - |
dc.subject | COMMUNICATION | - |
dc.subject | OPTIMIZATION | - |
dc.subject | PROTOCOLS | - |
dc.subject | NETWORKS | - |
dc.subject | CHANNEL | - |
dc.subject | DESIGN | - |
dc.title | Resource Allocation for Wireless-Powered Full-Duplex Relaying Systems With Nonlinear Energy Harvesting Efficiency | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, DI[Kim, Dong In] | - |
dc.identifier.doi | 10.1109/TVT.2019.2948792 | - |
dc.identifier.scopusid | 2-s2.0-85077199206 | - |
dc.identifier.wosid | 000518226900058 | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.68, no.12, pp.12079 - 12093 | - |
dc.relation.isPartOf | IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | - |
dc.citation.title | IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | - |
dc.citation.volume | 68 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 12079 | - |
dc.citation.endPage | 12093 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Telecommunications | - |
dc.relation.journalResearchArea | Transportation | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Telecommunications | - |
dc.relation.journalWebOfScienceCategory | Transportation Science & Technology | - |
dc.subject.keywordPlus | OFDMA SYSTEMS | - |
dc.subject.keywordPlus | INFORMATION | - |
dc.subject.keywordPlus | COMMUNICATION | - |
dc.subject.keywordPlus | OPTIMIZATION | - |
dc.subject.keywordPlus | PROTOCOLS | - |
dc.subject.keywordPlus | NETWORKS | - |
dc.subject.keywordPlus | CHANNEL | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordAuthor | Resource allocation | - |
dc.subject.keywordAuthor | full-duplex relaying | - |
dc.subject.keywordAuthor | wireless power transfer | - |
dc.subject.keywordAuthor | non-linear energy harvesting | - |
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