LI Cancellation and Power Allocation for Multipair FD Relay Systems with Massive Antenna Arrays

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorTang, Mengxueen_US
dc.contributor.authorVehkapera, Mikkoen_US
dc.contributor.authorChu, Xiaolien_US
dc.contributor.authorWichman, Ristoen_US
dc.contributor.departmentDept Signal Process and Acousten
dc.contributor.groupauthorRisto Wichman Groupen
dc.contributor.organizationUniversity of Sheffielden_US
dc.date.accessioned2019-09-03T13:48:49Z
dc.date.available2019-09-03T13:48:49Z
dc.date.issued2019-08-01en_US
dc.description| openaire: EC/H2020/734798/EU//is3DMIMO
dc.description.abstractMassive antenna arrays are capable of canceling out the loop interference (LI) at the relay station in multipair full-duplex (FD) relay networks even without LI channel knowledge if the number of antennas is allowed to grow without a bound. For large but finite number of antennas, however, channel estimation-based LI cancelation is required. In this letter, we propose a pilot protocol for LI channel estimation by exploiting the channel coherence time difference between static and moving transceivers in a multipair FD relay system. To maximize the end-to-end achievable rate, we also design a novel power allocation scheme to adjust the transmit power of each link at the relay. The analytical and numerical results show that the proposed novel pilot protocol and power allocation scheme jointly improve spectral and energy efficiency significantly with realistic coherence time differences.en
dc.description.versionPeer revieweden
dc.format.extent5
dc.format.extent1077-1081
dc.identifier.citationTang, M, Vehkapera, M, Chu, X & Wichman, R 2019, ' LI Cancellation and Power Allocation for Multipair FD Relay Systems with Massive Antenna Arrays ', IEEE Wireless Communications Letters, vol. 8, no. 4, 8672779, pp. 1077-1081 . https://doi.org/10.1109/LWC.2019.2906888en
dc.identifier.doi10.1109/LWC.2019.2906888en_US
dc.identifier.issn2162-2337
dc.identifier.issn2162-2345
dc.identifier.otherPURE UUID: bf07a7d5-5111-43f9-a27d-8c01d434105aen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/bf07a7d5-5111-43f9-a27d-8c01d434105aen_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85071157240&partnerID=8YFLogxKen_US
dc.identifier.otherPURE LINK: http://eprints.whiterose.ac.uk/144660/1/Mengxue%20Tang_WCLetter2018_final.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/40114
dc.identifier.urnURN:NBN:fi:aalto-201909035156
dc.language.isoenen
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/734798/EU//is3DMIMOen_US
dc.relation.ispartofseriesIEEE WIRELESS COMMUNICATIONS LETTERSen
dc.relation.ispartofseriesVolume 8, issue 4en
dc.rightsopenAccessen
dc.subject.keywordFull-duplex relayingen_US
dc.subject.keywordhardware impairmentsen_US
dc.subject.keywordinterference mitigationen_US
dc.subject.keywordpilot protocolen_US
dc.subject.keywordpower allocationen_US
dc.titleLI Cancellation and Power Allocation for Multipair FD Relay Systems with Massive Antenna Arraysen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
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