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Confidential broadcasting via coordinated beamforming in two-cell networks

He, Biao; Yang, Nan; Yuan, Jinhong; Zhou, Xiangyun

Description

We design a linear precoder based on the principles of the generalized regularized channel inversion (RCI) precoder that achieves confidential broadcasting in a two-cell network. In each cell of the network, an N-antenna base station (BS) communicates with K single-antenna users. We consider coordinated beamforming where the BSs in the two cells do not share messages but the users in the two cells feed back their channel state information to both BSs. In the precoder design, we...[Show more]

dc.contributor.authorHe, Biao
dc.contributor.authorYang, Nan
dc.contributor.authorYuan, Jinhong
dc.contributor.authorZhou, Xiangyun
dc.coverage.spatialLondon
dc.date.accessioned2016-06-14T23:19:37Z
dc.date.created2015
dc.identifier.isbn9.78147E+12
dc.identifier.urihttp://hdl.handle.net/1885/102975
dc.description.abstractWe design a linear precoder based on the principles of the generalized regularized channel inversion (RCI) precoder that achieves confidential broadcasting in a two-cell network. In each cell of the network, an N-antenna base station (BS) communicates with K single-antenna users. We consider coordinated beamforming where the BSs in the two cells do not share messages but the users in the two cells feed back their channel state information to both BSs. In the precoder design, we determine the optimal regularization parameter that maximizes the secrecy sum rate. To this end, we derive new channel-independent expressions for the secrecy sum rate in the large-system regime, where K and N approach infinity with a fixed ratio µ = K/N. Moreover, we propose a power-reduction strategy that significantly improves the secrecy sum rate at high transmit signal-to-noise ratios when µ is higher than 0.5.
dc.format.extent7 pages
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.rightsIEEE
dc.sourceIEEE International Conference on Communications, ICC 2015
dc.titleConfidential broadcasting via coordinated beamforming in two-cell networks
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor090600 - ELECTRICAL AND ELECTRONIC ENGINEERING
local.identifier.absfor100500 - COMMUNICATIONS TECHNOLOGIES
local.identifier.ariespublicationU3488905xPUB13150
local.publisher.urlhttp://www.ieee.org/index.html
local.type.statusAccepted Version
local.contributor.affiliationHe, Biao, College of Engineering and Computer Science, ANU
local.contributor.affiliationYang, Nan, College of Engineering and Computer Science, ANU
local.contributor.affiliationZhou, Xiangyun (Sean), College of Engineering and Computer Science, ANU
local.contributor.affiliationYuan, Jinhong, University of New South Wales
dc.relationhttp://purl.org/au-research/grants/arc/DP150103905
local.bibliographicCitation.startpage7376
local.bibliographicCitation.lastpage7382
local.identifier.doi10.1109/ICC.2015.7249505
dc.date.updated2016-06-14T08:41:29Z
local.identifier.scopusID2-s2.0-84953791906
dcterms.accessRightsOpen Access
dc.provenancehttps://www.ieee.org/publications/rights/index.html#ieee-open-access..."The revised policy reaffirms the principle that authors are free to post the accepted version of their articles on their personal websites or those of their employers." from SHERPA/RoMEO site (as at 10/09/18).
CollectionsANU Research Publications

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