Adaptive Nonlinear RF Cancellation for Improved Isolation in Simultaneous Transmit-Receive Systems

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorKiayani, Adnanen_US
dc.contributor.authorWaheed, Muhammad Zeeshanen_US
dc.contributor.authorAnttila, Laurien_US
dc.contributor.authorAbdelaziz, Mahmouden_US
dc.contributor.authorKorpi, Danien_US
dc.contributor.authorSyrjala, Villeen_US
dc.contributor.authorKosunen, Markoen_US
dc.contributor.authorStadius, Karien_US
dc.contributor.authorRyynanen, Jussien_US
dc.contributor.authorValkama, Mikkoen_US
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen
dc.contributor.groupauthorJussi Ryynänen Groupen
dc.contributor.organizationTampere University of Technologyen_US
dc.date.accessioned2018-03-16T10:31:53Z
dc.date.available2018-03-16T10:31:53Z
dc.date.issued2018en_US
dc.description.abstractThis paper proposes an active radio frequency (RF) cancellation solution to suppress the transmitter (TX) passband leakage signal in radio transceivers supporting simultaneous transmission and reception. The proposed technique is based on creating an opposite-phase baseband equivalent replica of the TX leakage signal in the transceiver digital front-end through adaptive nonlinear filtering of the known transmit data, to facilitate highly accurate cancellation under a nonlinear power amplifier (PA). The active RF cancellation is then accomplished by employing an auxiliary TX chain to generate the actual RF cancellation signal, and combining it with the received signal at the receiver (RX) low-noise amplifier (LNA) input. A closed-loop parameter learning approach, based on the decorrelation learning rule, is also developed to efficiently estimate the coefficients of the nonlinear cancellation filter in the presence of a nonlinear PA with memory, finite passive isolation, and a nonlinear LNA. The performance of the proposed cancellation technique is evaluated through comprehensive RF measurements adopting commercial LTE-Advanced transceiver hardware components. The results show that the proposed technique can provide an additional suppression of up to 54 dB for the TX passband leakage signal at the LNA input, even at very high transmit power levels and with wide transmission bandwidths. Such a novel cancellation solution can, therefore, substantially improve the TX-RX isolation, hence reducing the requirements on passive isolation and RF component linearity, as well as increasing the efficiency and flexibility of the RF spectrum use in the emerging 5G radio networks.en
dc.description.versionPeer revieweden
dc.format.extent14
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationKiayani, A, Waheed, M Z, Anttila, L, Abdelaziz, M, Korpi, D, Syrjala, V, Kosunen, M, Stadius, K, Ryynanen, J & Valkama, M 2018, ' Adaptive Nonlinear RF Cancellation for Improved Isolation in Simultaneous Transmit-Receive Systems ', IEEE Transactions on Microwave Theory and Techniques, vol. 66, no. 5, pp. 2299-2312 . https://doi.org/10.1109/TMTT.2017.2786729en
dc.identifier.doi10.1109/TMTT.2017.2786729en_US
dc.identifier.issn0018-9480
dc.identifier.issn1557-9670
dc.identifier.otherPURE UUID: 490be539-57e1-439d-94fd-001a7576eec1en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/490be539-57e1-439d-94fd-001a7576eec1en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85041175532&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/18168369/kiayani_et_alFINAL_VERSION.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/30260
dc.identifier.urnURN:NBN:fi:aalto-201803161730
dc.language.isoenen
dc.relation.ispartofseriesIEEE Transactions on Microwave Theory and Techniquesen
dc.rightsopenAccessen
dc.subject.keyword5Gen_US
dc.subject.keywordadaptive cancellationen_US
dc.subject.keywordBasebanden_US
dc.subject.keywordcarrier aggregation (CA)en_US
dc.subject.keywordCouplingsen_US
dc.subject.keywordduplexer isolationen_US
dc.subject.keywordflexible duplexingen_US
dc.subject.keywordfrequency division duplexingen_US
dc.subject.keywordin-band full duplex (IBFD)en_US
dc.subject.keywordleast-mean squares (LMS)en_US
dc.subject.keywordLTE-Advanceden_US
dc.subject.keywordNonlinear distortionen_US
dc.subject.keywordnonlinear distortionen_US
dc.subject.keywordPassbanden_US
dc.subject.keywordRadio frequencyen_US
dc.subject.keywordradio frequency (RF) cancellationen_US
dc.subject.keywordRadio transceiversen_US
dc.subject.keywordself-interference (SI)en_US
dc.subject.keywordtransmitter (TX) leakage signal.en_US
dc.titleAdaptive Nonlinear RF Cancellation for Improved Isolation in Simultaneous Transmit-Receive Systemsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionacceptedVersion
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