Optimum Multi-antenna Ambient Backscatter Receiver for Binary-modulated Tag Signals

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorAli, Yusein
dc.contributor.authorWang, Xiyu
dc.contributor.authorJantti, Riku
dc.contributor.departmentDepartment of Communications and Networking
dc.contributor.departmentDepartment of Communications and Networkingen
dc.date.accessioned2023-03-15T07:10:37Z
dc.date.available2023-03-15T07:10:37Z
dc.date.issued2023-02-01
dc.descriptionPublisher Copyright: Author
dc.description.abstractAmbient backscatter communication (AmBC) is becoming increasingly popular as a green Internet-of-things technology by enabling ultra-low-power data exchanges among simple tags. The bit-error-rate (BER) performance of the AmBC receivers is hampered by the low signal-to-interference-plus-noise ratio (SINR), which limits either the range or the data rate that can be supported by these systems. Among the alternatives, the solutions provided by a multi-antenna receiver enable several practical methods to improve the SINR using array signal processing. In this paper, the optimum multi-antenna AmBC receiver for any binary modulated tag signal is presented. Two receivers are derived from the maximum-a-posterior probability criterion for deterministic-unknown and for Gaussian distributed ambient signals. The closed-form cumulative distribution functions are derived for both of the receivers for performance evaluation purposes. It is discussed that these two receivers are equivalent under practical conditions, and the optimum receiver is a generalization of the multi-antenna receivers available in the literature. Several implementation details are discussed, and numerical evaluation is provided to validate the development. Therefore, the presented receiver accommodates different tag modulations and achieves the best possible BER performance, which opens up new application possibilities by improving AmBC system flexibility.en
dc.description.versionPeer revieweden
dc.format.extent16
dc.format.extent808-823
dc.format.mimetypeapplication/pdf
dc.identifier.citationAli , Y , Wang , X & Jantti , R 2023 , ' Optimum Multi-antenna Ambient Backscatter Receiver for Binary-modulated Tag Signals ' , IEEE Transactions on Wireless Communications , vol. 22 , no. 2 , pp. 808-823 . https://doi.org/10.1109/TWC.2022.3198514en
dc.identifier.doi10.1109/TWC.2022.3198514
dc.identifier.issn1536-1276
dc.identifier.otherPURE UUID: f15e65cf-54b8-42d7-8a7b-d555322c8e00
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/f15e65cf-54b8-42d7-8a7b-d555322c8e00
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85136891389&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/102576958/09863736.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/120109
dc.identifier.urnURN:NBN:fi:aalto-202303152435
dc.language.isoenen
dc.publisherIEEE
dc.relation.ispartofseriesIEEE Transactions on Wireless Communicationsen
dc.relation.ispartofseriesVolume 22, issue 2en
dc.rightsopenAccessen
dc.subject.keywordambient backscatter communication
dc.subject.keywordBackscatter
dc.subject.keywordgreen communication
dc.subject.keywordInterference
dc.subject.keywordInternet-of-things
dc.subject.keywordPerformance evaluation
dc.subject.keywordreceiver design
dc.subject.keywordreceiver performance analysis
dc.subject.keywordReceivers
dc.subject.keywordReceiving antennas
dc.subject.keywordSignal to noise ratio
dc.subject.keywordSymbols
dc.titleOptimum Multi-antenna Ambient Backscatter Receiver for Binary-modulated Tag Signalsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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