THESIS
2017
xv, 92 pages : illustrations (some color) ; 30 cm
Abstract
Fifth-generation mobile network (5G) will be rolled out to meet business and consumer
demands by 2020. Driven by the explosion in mobile-connected devices, the amount of
mobile data traffic in 5G will be unprecedented. To cope with the excessive traffic,
wireless local area network (WLAN) standards like WiFi, and cellular standards like LTE
are proposed to be integrated. Such a network where WLAN standards and cellular
standards are integrated is referred to as a WLAN/cellular integrated network (WCIN).
This dissertation studies throughput optimization for the WCIN in 5G. The novelty
here is the utilization of partially overlapped WiFi channels (POCs). Briefly, a POC is
essentially a WiFi channel that is partially overlapped by LTE component carriers. Since
most WiFi users negl...[
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Fifth-generation mobile network (5G) will be rolled out to meet business and consumer
demands by 2020. Driven by the explosion in mobile-connected devices, the amount of
mobile data traffic in 5G will be unprecedented. To cope with the excessive traffic,
wireless local area network (WLAN) standards like WiFi, and cellular standards like LTE
are proposed to be integrated. Such a network where WLAN standards and cellular
standards are integrated is referred to as a WLAN/cellular integrated network (WCIN).
This dissertation studies throughput optimization for the WCIN in 5G. The novelty
here is the utilization of partially overlapped WiFi channels (POCs). Briefly, a POC is
essentially a WiFi channel that is partially overlapped by LTE component carriers. Since
most WiFi users neglect to use POCs, their spectrum is wasted which further hinders
WCIN throughput from becoming optimal.
To optimize WCIN throughput, this dissertation investigates the resource allocation in
WCIN by considering POCs. We deliver three fundamental contributions: We first study
the POC model and present a measurement-based method to detect the POC in WCIN.
Next, we empirically study the feasibility of enhancing WCIN throughput by utilizing
POCs. Finally, we formulate the resource allocation in WCIN as a joint channel assignment
and bandwidth allocation problem. A centralized algorithm and a game theoretical
framework are introduced to address the two sub-problems, respectively. Our approaches
are empirically evaluated in real-world scenarios. The experimental results show that our
approaches can further optimize WCIN throughput based on state-of-the-art solutions.
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