Magnetic MIMO Signal Processing and Optimization for Wireless Power Transfer
In magnetic resonant coupling (MRC) enabled multiple-input multiple-output (MIMO) wireless power transfer (WPT) systems, multiple transmitters (TXs) each with one single coil are used to enhance the efficiency of simultaneous power transfer to multiple single-coil receivers (RXs) by constructively c...
Uložené v:
| Vydané v: | arXiv.org |
|---|---|
| Hlavní autori: | , , |
| Médium: | Paper |
| Jazyk: | English |
| Vydavateľské údaje: |
Ithaca
Cornell University Library, arXiv.org
17.02.2017
|
| Predmet: | |
| ISSN: | 2331-8422 |
| On-line prístup: | Získať plný text |
| Tagy: |
Pridať tag
Žiadne tagy, Buďte prvý, kto otaguje tento záznam!
|
| Abstract | In magnetic resonant coupling (MRC) enabled multiple-input multiple-output (MIMO) wireless power transfer (WPT) systems, multiple transmitters (TXs) each with one single coil are used to enhance the efficiency of simultaneous power transfer to multiple single-coil receivers (RXs) by constructively combining their induced magnetic fields at the RXs, a technique termed "magnetic beamforming". In this paper, we study the optimal magnetic beamforming design in a multi-user MIMO MRC-WPT system. We introduce the multi-user power region that constitutes all the achievable power tuples for all RXs, subject to the given total power constraint over all TXs as well as their individual peak voltage and current constraints. We characterize each boundary point of the power region by maximizing the sum-power deliverable to all RXs subject to their minimum harvested power constraints. For the special case without the TX peak voltage and current constraints, we derive the optimal TX current allocation for the single-RX setup in closed-form as well as that for the multi-RX setup. In general, the problem is a non-convex quadratically constrained quadratic programming (QCQP), which is difficult to solve. For the case of one single RX, we show that the semidefinite relaxation (SDR) of the problem is tight. For the general case with multiple RXs, based on SDR we obtain two approximate solutions by applying time-sharing and randomization, respectively. Moreover, for practical implementation of magnetic beamforming, we propose a novel signal processing method to estimate the magnetic MIMO channel due to the mutual inductances between TXs and RXs. Numerical results show that our proposed magnetic channel estimation and adaptive beamforming schemes are practically effective, and can significantly improve the power transfer efficiency and multi-user performance trade-off in MIMO MRC-WPT systems. |
|---|---|
| AbstractList | In magnetic resonant coupling (MRC) enabled multiple-input multiple-output (MIMO) wireless power transfer (WPT) systems, multiple transmitters (TXs) each with one single coil are used to enhance the efficiency of simultaneous power transfer to multiple single-coil receivers (RXs) by constructively combining their induced magnetic fields at the RXs, a technique termed "magnetic beamforming". In this paper, we study the optimal magnetic beamforming design in a multi-user MIMO MRC-WPT system. We introduce the multi-user power region that constitutes all the achievable power tuples for all RXs, subject to the given total power constraint over all TXs as well as their individual peak voltage and current constraints. We characterize each boundary point of the power region by maximizing the sum-power deliverable to all RXs subject to their minimum harvested power constraints. For the special case without the TX peak voltage and current constraints, we derive the optimal TX current allocation for the single-RX setup in closed-form as well as that for the multi-RX setup. In general, the problem is a non-convex quadratically constrained quadratic programming (QCQP), which is difficult to solve. For the case of one single RX, we show that the semidefinite relaxation (SDR) of the problem is tight. For the general case with multiple RXs, based on SDR we obtain two approximate solutions by applying time-sharing and randomization, respectively. Moreover, for practical implementation of magnetic beamforming, we propose a novel signal processing method to estimate the magnetic MIMO channel due to the mutual inductances between TXs and RXs. Numerical results show that our proposed magnetic channel estimation and adaptive beamforming schemes are practically effective, and can significantly improve the power transfer efficiency and multi-user performance trade-off in MIMO MRC-WPT systems. |
| Author | Vedady Moghadam, Mohammad R Yang, Gang Zhang, Rui |
| Author_xml | – sequence: 1 givenname: Gang surname: Yang fullname: Yang, Gang – sequence: 2 givenname: Mohammad surname: Vedady Moghadam middlename: R fullname: Vedady Moghadam, Mohammad R – sequence: 3 givenname: Rui surname: Zhang fullname: Zhang, Rui |
| BookMark | eNotjsFKAzEURYMoWGs_wF3A9dTkTV6SWUpRW2iZggMuy5tppqTUpCZTFb_egi4uZ3M43Bt2GWJwjN1JMVUWUTxQ-vafU2kETAWCgQs2grKUhVUA12yS814IAdoAYjliyxXtght8x1eLVc1f_S7Qga9T7FzOPuw4hS2vj4N_9z80-Bh4HxN_88kdzgJfxy-XeJMo5N6lW3bV0yG7yT_HrHl-ambzYlm_LGaPy4IQdNEKqM7btihJSqo6QyV0iLpF0pU1Tsq-78gpazrrhGg1qkpYhS314Oy2HLP7v-wxxY-Ty8NmH0_p_DtvQBhlNUqly181iVCb |
| ContentType | Paper |
| Copyright | 2017. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. |
| Copyright_xml | – notice: 2017. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. |
| DBID | 8FE 8FG ABJCF ABUWG AFKRA AZQEC BENPR BGLVJ CCPQU DWQXO HCIFZ L6V M7S PHGZM PHGZT PIMPY PKEHL PQEST PQGLB PQQKQ PQUKI PRINS PTHSS |
| DOI | 10.48550/arxiv.1702.05272 |
| DatabaseName | ProQuest SciTech Collection ProQuest Technology Collection Materials Science & Engineering Collection ProQuest Central (Alumni) ProQuest Central UK/Ireland ProQuest Central Essentials ProQuest Central Technology Collection ProQuest One ProQuest Central Korea SciTech Collection (ProQuest) ProQuest Engineering Collection Engineering Database ProQuest Central Premium ProQuest One Academic (New) Publicly Available Content Database ProQuest One Academic Middle East (New) ProQuest One Academic Eastern Edition (DO NOT USE) One Applied & Life Sciences ProQuest One Academic (retired) ProQuest One Academic UKI Edition ProQuest Central China Engineering Collection |
| DatabaseTitle | Publicly Available Content Database Engineering Database Technology Collection ProQuest One Academic Middle East (New) ProQuest Central Essentials ProQuest One Academic Eastern Edition ProQuest Central (Alumni Edition) SciTech Premium Collection ProQuest One Community College ProQuest Technology Collection ProQuest SciTech Collection ProQuest Central China ProQuest Central ProQuest One Applied & Life Sciences ProQuest Engineering Collection ProQuest One Academic UKI Edition ProQuest Central Korea Materials Science & Engineering Collection ProQuest Central (New) ProQuest One Academic ProQuest One Academic (New) Engineering Collection |
| DatabaseTitleList | Publicly Available Content Database |
| Database_xml | – sequence: 1 dbid: PIMPY name: Publicly Available Content Database url: http://search.proquest.com/publiccontent sourceTypes: Aggregation Database |
| DeliveryMethod | fulltext_linktorsrc |
| Discipline | Physics |
| EISSN | 2331-8422 |
| Genre | Working Paper/Pre-Print |
| GroupedDBID | 8FE 8FG ABJCF ABUWG AFKRA ALMA_UNASSIGNED_HOLDINGS AZQEC BENPR BGLVJ CCPQU DWQXO FRJ HCIFZ L6V M7S M~E PHGZM PHGZT PIMPY PKEHL PQEST PQGLB PQQKQ PQUKI PRINS PTHSS |
| ID | FETCH-LOGICAL-a526-b029b02db51a11a9c7a32c556b5a6987e11ffcae487c8e00b65490845baf2e8d3 |
| IEDL.DBID | M7S |
| IngestDate | Mon Jun 30 09:26:42 EDT 2025 |
| IsDoiOpenAccess | true |
| IsOpenAccess | true |
| IsPeerReviewed | false |
| IsScholarly | false |
| Language | English |
| LinkModel | DirectLink |
| MergedId | FETCHMERGED-LOGICAL-a526-b029b02db51a11a9c7a32c556b5a6987e11ffcae487c8e00b65490845baf2e8d3 |
| Notes | SourceType-Working Papers-1 ObjectType-Working Paper/Pre-Print-1 content type line 50 |
| OpenAccessLink | https://www.proquest.com/docview/2074865146?pq-origsite=%requestingapplication% |
| PQID | 2074865146 |
| PQPubID | 2050157 |
| ParticipantIDs | proquest_journals_2074865146 |
| PublicationCentury | 2000 |
| PublicationDate | 20170217 |
| PublicationDateYYYYMMDD | 2017-02-17 |
| PublicationDate_xml | – month: 02 year: 2017 text: 20170217 day: 17 |
| PublicationDecade | 2010 |
| PublicationPlace | Ithaca |
| PublicationPlace_xml | – name: Ithaca |
| PublicationTitle | arXiv.org |
| PublicationYear | 2017 |
| Publisher | Cornell University Library, arXiv.org |
| Publisher_xml | – name: Cornell University Library, arXiv.org |
| SSID | ssj0002672553 |
| Score | 1.61553 |
| SecondaryResourceType | preprint |
| Snippet | In magnetic resonant coupling (MRC) enabled multiple-input multiple-output (MIMO) wireless power transfer (WPT) systems, multiple transmitters (TXs) each with... |
| SourceID | proquest |
| SourceType | Aggregation Database |
| SubjectTerms | Beamforming Coils Electric potential MIMO communication Optimization Power efficiency Quadratic programming Signal processing Software radio Transmitters Wireless power transmission |
| Title | Magnetic MIMO Signal Processing and Optimization for Wireless Power Transfer |
| URI | https://www.proquest.com/docview/2074865146 |
| hasFullText | 1 |
| inHoldings | 1 |
| isFullTextHit | |
| isPrint | |
| link | http://cvtisr.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwpV27TsMwFLWgBYmJt3iUygNrIHb8SCYkUCsqNW1EO5SpsmO7qgRpSUrF52ObFMTCwuAhsofEtu65OfdxALhmjFi_07E2SPGAYBUGEgkcSGNiKRUxVPsmrn0-GMSTSZLVhFtVp1VubKI31GqRO47cMSEkZhbe2d3yLXCqUS66WktobIOm65KAfOre6JtjwYxbjzn6Cmb61l23ovyYr2-QK8IKKfZ9gX-bYI8r3f3_vtEBaGZiqctDsKWLI7Dr8znz6hj0UzErXH0iTHvpEI7mM3thYF0VYNEKikLBoTUXr3UdJrTOK3SpsC92Acycdhr0OGZ0eQLG3c744TGohRMCQTELZIgTO5SkSCAkkpyLCOeUMkkFS2KuETImF9r-q-SxDkPJqAv_ESqFwTpW0SloFItCnwFovw8TKSOiI0G40nFipPXHiUJchwbhc9Da7M20vvzV9GdjLv6evgR72KGk01fhLdBYle_6Cuzk69W8Ktuged8ZZE9tf6b2Keul2fMn4FisZA |
| linkProvider | ProQuest |
| linkToHtml | http://cvtisr.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMw1V07T8MwED7xFEy8xRsPMAZix3aSATHwEBVtqUQHtsqO7aoSBEhLgR_Ff-RsWhALGwNDpkRW5LPvvnt8dwD7UnLEnT5qQ00acWbiSFPFIu1cprXhTtjQxLWeNpvZ7W3emoD3MRfGl1WOdWJQ1Oah8DFyHwnhmUTzLk8enyI_NcpnV8cjND6PxZV9e0GXrX9cO0P5HjB2cd4-vYxGUwUiJZiMdMxyfIwWVFGq8iJVCSuEkFooiQ64pdS5QlkE8kVm41hL4XNjXGjlmM1MgstOwjSiCJaHSsGbr5AOkykC9OQzdxo6hR2p6rU3PKSe8xULFtoQ_9T4wYxdLPyzDViE6ZZ6tNUSTNhyGWZDtWrRX4F6Q3VLz74kjVrjmtz0ungdyIjzgLaYqNKQa1SG9yOWKUFoTnyh7x1-QFp-MhwJVtrZahXaf_H_azBVPpR2HQhuJ-NaJ9wmiqfGZrnT6G1wQ1MbO8o2YHssis7oavc733LY_P31Hsxdthv1Tr3WvNqCeebxgJ8kk27D1KB6tjswUwwHvX61G44Rgc4fS-0DxfIE1A |
| openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Magnetic+MIMO+Signal+Processing+and+Optimization+for+Wireless+Power+Transfer&rft.jtitle=arXiv.org&rft.au=Yang%2C+Gang&rft.au=Vedady+Moghadam%2C+Mohammad+R&rft.au=Zhang%2C+Rui&rft.date=2017-02-17&rft.pub=Cornell+University+Library%2C+arXiv.org&rft.eissn=2331-8422&rft_id=info:doi/10.48550%2Farxiv.1702.05272 |