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Article: Wirelessly Powered Two-Way Communication With Nonlinear Energy Harvesting Model: Rate Regions Under Fixed and Mobile Relay
Title | Wirelessly Powered Two-Way Communication With Nonlinear Energy Harvesting Model: Rate Regions Under Fixed and Mobile Relay |
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Authors | |
Keywords | Achievable rate region Beamforming design Mobile relay Nonlinear energy harvesting model Powercast P2110 Two-way relay channel (TWRC) Unmanned ground vehicle (UGV) Wireless power transfer (WPT) |
Issue Date | 2017 |
Publisher | Institute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=7693 |
Citation | IEEE Transactions on Wireless Communications, 2017, v. 16 n. 12, p. 8190-8204 How to Cite? |
Abstract | While two-way communication can improve the spectral efficiency of wireless networks, distances from the relay to the two users are usually asymmetric, leading to excessive wireless energy at the nearby user. To exploit the excessive energy, energy harvesting at user terminals is a viable option. Unfortunately, the exact gain brought by wireless power transfer (WPT) in two-way communication is currently unknown. To fill this gap, in this paper, the achievable rate region of wirelessly powered two-way communication with a fixed relay is derived. Not only this newly established result is shown to enclose the existing achievable rate region of two-way relay channel without energy harvesting but also the gain is precisely quantified. On the other hand, it is well-known that a major obstacle to WPT is the path-loss. By endowing the relay with mobility, the distances between the relay and users can be varied, thus providing a potential solution to combat pathloss at the expense of energy for transmission. To characterize the consequence brought by such a scheme, a pair of inner and outer bounds to the achievable rate region of wirelessly powered two-way communication under a mobile relay is further derived. By comparing the exact achievable rate region for the fixed relay case and the achievable rate bounds for the mobile relay case, it is possible to quantify the relative advantage of spending energy on moving versus on transmission in wirelessly powered two-way communication. |
Persistent Identifier | http://hdl.handle.net/10722/259248 |
ISSN | 2023 Impact Factor: 8.9 2023 SCImago Journal Rankings: 5.371 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Wang, S | - |
dc.contributor.author | Xia, M | - |
dc.contributor.author | Huang, K | - |
dc.contributor.author | Wu, YC | - |
dc.date.accessioned | 2018-09-03T04:03:53Z | - |
dc.date.available | 2018-09-03T04:03:53Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | IEEE Transactions on Wireless Communications, 2017, v. 16 n. 12, p. 8190-8204 | - |
dc.identifier.issn | 1536-1276 | - |
dc.identifier.uri | http://hdl.handle.net/10722/259248 | - |
dc.description.abstract | While two-way communication can improve the spectral efficiency of wireless networks, distances from the relay to the two users are usually asymmetric, leading to excessive wireless energy at the nearby user. To exploit the excessive energy, energy harvesting at user terminals is a viable option. Unfortunately, the exact gain brought by wireless power transfer (WPT) in two-way communication is currently unknown. To fill this gap, in this paper, the achievable rate region of wirelessly powered two-way communication with a fixed relay is derived. Not only this newly established result is shown to enclose the existing achievable rate region of two-way relay channel without energy harvesting but also the gain is precisely quantified. On the other hand, it is well-known that a major obstacle to WPT is the path-loss. By endowing the relay with mobility, the distances between the relay and users can be varied, thus providing a potential solution to combat pathloss at the expense of energy for transmission. To characterize the consequence brought by such a scheme, a pair of inner and outer bounds to the achievable rate region of wirelessly powered two-way communication under a mobile relay is further derived. By comparing the exact achievable rate region for the fixed relay case and the achievable rate bounds for the mobile relay case, it is possible to quantify the relative advantage of spending energy on moving versus on transmission in wirelessly powered two-way communication. | - |
dc.language | eng | - |
dc.publisher | Institute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=7693 | - |
dc.relation.ispartof | IEEE Transactions on Wireless Communications | - |
dc.rights | © 2017 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information. | - |
dc.subject | Achievable rate region | - |
dc.subject | Beamforming design | - |
dc.subject | Mobile relay | - |
dc.subject | Nonlinear energy harvesting model | - |
dc.subject | Powercast P2110 | - |
dc.subject | Two-way relay channel (TWRC) | - |
dc.subject | Unmanned ground vehicle (UGV) | - |
dc.subject | Wireless power transfer (WPT) | - |
dc.title | Wirelessly Powered Two-Way Communication With Nonlinear Energy Harvesting Model: Rate Regions Under Fixed and Mobile Relay | - |
dc.type | Article | - |
dc.identifier.email | Huang, K: huangkb@eee.hku.hk | - |
dc.identifier.email | Wu, YC: ycwu@eee.hku.hk | - |
dc.identifier.authority | Huang, K=rp01875 | - |
dc.identifier.authority | Wu, YC=rp00195 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1109/TWC.2017.2758767 | - |
dc.identifier.scopus | eid_2-s2.0-85044389835 | - |
dc.identifier.hkuros | 288302 | - |
dc.identifier.volume | 16 | - |
dc.identifier.issue | 12 | - |
dc.identifier.spage | 8190 | - |
dc.identifier.epage | 8204 | - |
dc.identifier.isi | WOS:000418184400036 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 1536-1276 | - |