Green Femtocell Networks through Joint Power Control and 3-Dimensional Pattern-Dependent Beamforming

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dc.contributor.authorNoori, Narges
dc.coverage.issue4cs
dc.coverage.volume26cs
dc.date.accessioned2018-06-18T10:29:49Z
dc.date.available2018-06-18T10:29:49Z
dc.date.issued2017-12cs
dc.description.abstractFemtocell technologies are used to extend radio coverage into buildings and provide wireless broadband access in residential, office or indoor hotspot environments. However, due to the radio spectrum scarcity, the femtocells reuse the same licensed spectrum bands of the macrocells. Thus interference management is one of the main challenges under such co-channel deployment of the femtocells. In this paper, we propose a new joint power control and 3-dimensional (3D) pattern-dependent beamforming algorithm to minimize total power consumption of the femtocells deployed in a macrocellular environment. This algorithm can help us achieve the goal of green communication and significantly reduce power consumption of the overall radio access networks. The algorithm is based on an iterative scheme for a downlink case where all femtocell access points (FAPs) and macro base stations (BSs) are equipped with multiple antennas. By considering radiation pattern of all antennas, the scheme tries to find the optimal 3D beamforming weights and transmission power of all FAPs and BSs while satisfying minimum signal-to-interference-plus-noise ratio (SINR) requirements of both macrocell and femtocell networks. Simulations are conducted in various scenarios to evaluate performance of the proposed algorithm.en
dc.formattextcs
dc.format.extent1075-1082cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2017 vol. 26, č. 4, s. 1075-1082. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2017.1075en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/82938
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2017/17_01_1075_1082.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.accessopenAccessen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectFemtocellsen
dc.subjectpower controlen
dc.subject3D beamformingen
dc.subjectgreen communicationen
dc.titleGreen Femtocell Networks through Joint Power Control and 3-Dimensional Pattern-Dependent Beamformingen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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