Improving fractional frequency reuse (FFR) for interference mitigation in Multi-tier 4G wireless networks

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dc.contributor.advisorDlodlo, Mqhele Een_ZA
dc.contributor.authorAdeyemo, Oluwadamilare Danielen_ZA
dc.date.accessioned2015-07-29T03:41:55Z
dc.date.available2015-07-29T03:41:55Z
dc.date.issued2015en_ZA
dc.descriptionIncludes bibliography.en_ZA
dc.description.abstractThe need to provide quality indoor coverage for mobile network users in an indoor environment has become paramount to communication service providers (CSPs). Femto-cells due to their low capital expenditure (CAPEX) and operating expenditure (OPEX) have seen widespread adoption as a possible solution to the indoor coverage challenge. The major drawback of its adoption is the possibility of erratic but significant interference to both the Femto-cell and the Macro-cell tiers owing to their Ad-hoc mode of deployment. The Fractional Frequency Reuse (FFR) is an interference mitigation scheme, due to its effectiveness and low complexity; it has been proposed to be an efficient technique of solving the problem of interference in the cross-boundary region. In this study, a critical analysis of the existing schemes revealed that Femto-cell users at the border between the cell centre region (CCR) and the cell edge region (CER) suffer cross-boundary interference. An algorithm that integrates a buffer zone between the existing CCR and CER has been developed to solve the cross-boundary interference challenge experienced by the Femto-cell users. A system level simulation implemented in MATLAB was used to evaluate the developed algorithm. The network performance (in terms of user-achieved signal-to-interference-plus-noise ratio (SINR) and its daughter metrics such as channel capacity and throughput) was estimated. In terms of the SINR, the performance improvement recorded for Femto-cell users at the border region after the implementation of the buffer zone was more than eighty per cent (80%). There were significant improvements in terms of the channel capacity and throughput for the Femto-users present at the buffer region with the implementation of the developed algorithm.en_ZA
dc.identifier.apacitationAdeyemo, O. D. (2015). <i>Improving fractional frequency reuse (FFR) for interference mitigation in Multi-tier 4G wireless networks</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/13558en_ZA
dc.identifier.chicagocitationAdeyemo, Oluwadamilare Daniel. <i>"Improving fractional frequency reuse (FFR) for interference mitigation in Multi-tier 4G wireless networks."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 2015. http://hdl.handle.net/11427/13558en_ZA
dc.identifier.citationAdeyemo, O. 2015. Improving fractional frequency reuse (FFR) for interference mitigation in Multi-tier 4G wireless networks. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Adeyemo, Oluwadamilare Daniel AB - The need to provide quality indoor coverage for mobile network users in an indoor environment has become paramount to communication service providers (CSPs). Femto-cells due to their low capital expenditure (CAPEX) and operating expenditure (OPEX) have seen widespread adoption as a possible solution to the indoor coverage challenge. The major drawback of its adoption is the possibility of erratic but significant interference to both the Femto-cell and the Macro-cell tiers owing to their Ad-hoc mode of deployment. The Fractional Frequency Reuse (FFR) is an interference mitigation scheme, due to its effectiveness and low complexity; it has been proposed to be an efficient technique of solving the problem of interference in the cross-boundary region. In this study, a critical analysis of the existing schemes revealed that Femto-cell users at the border between the cell centre region (CCR) and the cell edge region (CER) suffer cross-boundary interference. An algorithm that integrates a buffer zone between the existing CCR and CER has been developed to solve the cross-boundary interference challenge experienced by the Femto-cell users. A system level simulation implemented in MATLAB was used to evaluate the developed algorithm. The network performance (in terms of user-achieved signal-to-interference-plus-noise ratio (SINR) and its daughter metrics such as channel capacity and throughput) was estimated. In terms of the SINR, the performance improvement recorded for Femto-cell users at the border region after the implementation of the buffer zone was more than eighty per cent (80%). There were significant improvements in terms of the channel capacity and throughput for the Femto-users present at the buffer region with the implementation of the developed algorithm. DA - 2015 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2015 T1 - Improving fractional frequency reuse (FFR) for interference mitigation in Multi-tier 4G wireless networks TI - Improving fractional frequency reuse (FFR) for interference mitigation in Multi-tier 4G wireless networks UR - http://hdl.handle.net/11427/13558 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/13558
dc.identifier.vancouvercitationAdeyemo OD. Improving fractional frequency reuse (FFR) for interference mitigation in Multi-tier 4G wireless networks. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 2015 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/13558en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Electrical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherElectrical Engineeringen_ZA
dc.titleImproving fractional frequency reuse (FFR) for interference mitigation in Multi-tier 4G wireless networksen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMSc (Eng)en_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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