Linear precoder design for simultaneous information and energy transfer over two-user MIMO interference channels

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dc.citation.epage5847en_US
dc.citation.issueNumber10en_US
dc.citation.spage5836en_US
dc.citation.volumeNumber14en_US
dc.contributor.authorÖzçelikkale, A.en_US
dc.contributor.authorDuman, T. M.en_US
dc.date.accessioned2019-02-14T14:07:55Z
dc.date.available2019-02-14T14:07:55Z
dc.date.issued2015en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractCommunication strategies that utilize wireless media for simultaneous information and power transfer offer a promising perspective for efficient usage of energy resources. With this motivation, we focus on the design of optimal linear precoders for interference channels utilizing such strategies. We formulate the problem of minimizing the total minimum mean-square error while keeping the energy harvested at the energy receivers above given levels. Our framework leads to a non-convex problem formulation. For point-to-point multiple-input multiple-output channels, we provide a characterization of the optimal solutions under a constraint on the number of transmit antennas. For the general interference scenario, we propose two numerical approaches, one for the single antenna information receivers case, and the other for the general case. We also investigate a hybrid signalling scheme, where the transmitter sends a superposition of two signals: a deterministic signal optimized for energy transfer and an information carrying signal optimized for information and energy transfer. It is illustrated that if hybrid signalling is not incorporated into the transmission scheme, interference can be detrimental to the system performance when the number of antennas at the receivers is low.en_US
dc.identifier.doi10.1109/TWC.2015.2443099en_US
dc.identifier.eissn1558-2248
dc.identifier.issn1536-1276
dc.identifier.urihttp://hdl.handle.net/11693/49550
dc.language.isoEnglishen_US
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.relation.isversionofhttps://doi.org/10.1109/TWC.2015.2443099en_US
dc.source.titleIEEE Transactions on Wireless Communicationsen_US
dc.subjectWireless power transferen_US
dc.subjectEnergy harvestingen_US
dc.subjectInterferenceen_US
dc.subjectLinear precodingen_US
dc.subjectMMSEen_US
dc.subjectSimultaneous wireless information and power transfer (SWIPT)en_US
dc.titleLinear precoder design for simultaneous information and energy transfer over two-user MIMO interference channelsen_US
dc.typeArticleen_US

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