Stochastic Geometry for Mobility-Aware Performance Modeling in 6G Multi-band Wireless Networks

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dc.contributor.advisorTabassum, Hina
dc.contributor.authorHossan, Md Tanvir
dc.date.accessioned2021-07-06T12:52:41Z
dc.date.available2021-07-06T12:52:41Z
dc.date.copyright2021-04
dc.date.issued2021-07-06
dc.date.updated2021-07-06T12:52:41Z
dc.degree.disciplineElectrical and Computer Engineering
dc.degree.levelMaster's
dc.degree.nameMASc - Master of Applied Science
dc.description.abstractUsing tools from stochastic geometry, I develop a stochastic geometry-based tractable framework to analyze the performance of a mobile user in a two-tier wireless network operating on sub-6GHz and terahertz (THz) transmission frequencies. Specifically, using an equivalence distance approach, I characterize the overall handoff (HO) rate in terms of the horizontal and vertical HO probability. In addition, I characterize novel coverage probability expressions for THz network in the presence of molecular absorption noise and highlight its significant impact on the users' performance. Specifically, I derive a novel closed-form expression for the Laplace Transform of the cumulative interference in the presence of molecular noise observed by a mobile user in a hybrid RF-THz network. Furthermore, I provide a novel approach to derive the conditional distance distributions of a typical user in a hybrid RF-THz network. Finally, using the overall HO rate and coverage probability expressions, the mobility-aware probability of coverage has been derived in a hybrid RF-THz network. The mathematical results validate the correctness of the derived expressions using Monte-Carlo simulations. The results offer insights into the adverse impact of users' mobility and molecular noise in THz transmissions on the probability of coverage of mobile users. The results demonstrate that a small increase in the intensity of THz base-station (TBSs) (about 5 times) can increase the HO probability much more compared to the case when the intensity of RF base-station (RBSs) is increased by 100 times. Furthermore, I note that high molecular absorption can be beneficial (in terms of minimizing interference) for dense deployment of TBSs and the benefits can outweigh the drawbacks of signal degradation due to molecular absorption.
dc.identifier.urihttp://hdl.handle.net/10315/38493
dc.languageen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectTechnical communication
dc.subject.keywordsTerahertz
dc.subject.keywordshorizontal handoff
dc.subject.keywordsvertical handoff
dc.subject.keywordsmolecular absorption noise
dc.subject.keywordsmobility
dc.subject.keywordsuser association
dc.subject.keywordshandoff probability
dc.subject.keywordscoverage probability
dc.subject.keywordsstochastic geometry
dc.titleStochastic Geometry for Mobility-Aware Performance Modeling in 6G Multi-band Wireless Networks
dc.typeElectronic Thesis or Dissertation

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