Interference mitigation for broadcast in hierarchical cell structure networks: Transmission strategy and area spectral efficiency

Handle URI:
http://hdl.handle.net/10754/563778
Title:
Interference mitigation for broadcast in hierarchical cell structure networks: Transmission strategy and area spectral efficiency
Authors:
Yang, Yuli; Salama, Khaled N. ( 0000-0001-7742-1282 ) ; Aïssa, Sonia
Abstract:
In this paper, a hierarchical cell structure (HCS) is considered, where an access point (AP) broadcasts to local nodes (LNs) over orthogonal frequency subbands within a local cell located in a macrocell. Since the local cell shares the spectrum licensed to the macrocell, a given LN is interfered with by the macrocell user (MU)'s transmissions over the same subband. To improve the performance of the AP's broadcast service, a novel transmission strategy is proposed to mitigate the interference from the MU to the LN while achieving diversity gain. For the purpose of performance evaluation, the ergodic capacity of the proposed scheme is quantified, and the corresponding closed-form expression is obtained. By comparing with the traditional transmission scheme, which suffers from MU's interference, illustrative numerical results substantiate that the proposed scheme achieves better performance than the traditional scheme as the MU-LN mean channel power gain is larger than half of the AP-LN mean channel power gain. Subsequently, we develop an optimized network design by maximizing the area spectral efficiency (ASE) of the AP's broadcast in the local cell.
KAUST Department:
Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Sensors Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Vehicular Technology
Issue Date:
Oct-2014
DOI:
10.1109/TVT.2014.2306436
Type:
Article
ISSN:
00189545
Appears in Collections:
Articles; Electrical Engineering Program; Sensors Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorYang, Yulien
dc.contributor.authorSalama, Khaled N.en
dc.contributor.authorAïssa, Soniaen
dc.date.accessioned2015-08-03T12:09:47Zen
dc.date.available2015-08-03T12:09:47Zen
dc.date.issued2014-10en
dc.identifier.issn00189545en
dc.identifier.doi10.1109/TVT.2014.2306436en
dc.identifier.urihttp://hdl.handle.net/10754/563778en
dc.description.abstractIn this paper, a hierarchical cell structure (HCS) is considered, where an access point (AP) broadcasts to local nodes (LNs) over orthogonal frequency subbands within a local cell located in a macrocell. Since the local cell shares the spectrum licensed to the macrocell, a given LN is interfered with by the macrocell user (MU)'s transmissions over the same subband. To improve the performance of the AP's broadcast service, a novel transmission strategy is proposed to mitigate the interference from the MU to the LN while achieving diversity gain. For the purpose of performance evaluation, the ergodic capacity of the proposed scheme is quantified, and the corresponding closed-form expression is obtained. By comparing with the traditional transmission scheme, which suffers from MU's interference, illustrative numerical results substantiate that the proposed scheme achieves better performance than the traditional scheme as the MU-LN mean channel power gain is larger than half of the AP-LN mean channel power gain. Subsequently, we develop an optimized network design by maximizing the area spectral efficiency (ASE) of the AP's broadcast in the local cell.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectArea spectral efficiency (ASE)en
dc.subjectbroadcasten
dc.subjectergodic capacityen
dc.subjecthierarchical cell structure (HCS)en
dc.subjectspectrum sharingen
dc.titleInterference mitigation for broadcast in hierarchical cell structure networks: Transmission strategy and area spectral efficiencyen
dc.typeArticleen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentSensors Laben
dc.identifier.journalIEEE Transactions on Vehicular Technologyen
dc.contributor.institutionDepartment of Electrical and Electronics Engineering, Meliksah UniversityKayseri, Turkeyen
dc.contributor.institutionNational Institute of Scientific Research (INRS-EMT), University of QuebecMontreal, QC, Canadaen
kaust.authorSalama, Khaled N.en
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