Resource Allocation in 5G WLAN/Cellular Integrated Network with Partially Overlapped Channels

The Hong Kong University of Science and Technology
Department of Computer Science and Engineering


PhD Thesis Defence


Title: "Resource Allocation in 5G WLAN/Cellular Integrated Network with 
Partially Overlapped Channels"

By

Mr. Jiayue LI


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 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.


Date:			Friday, 18 August 2017

Time:			10:00am - 12:00noon

Venue:			Room 2610
 			Lifts 31/32

Chairman:		Prof. Kwok-Yip Szeto (PHYS)

Committee Members:	Prof. Lionel Ni (Supervisor)
 			Prof. Qiong Luo (Supervisor)
 			Prof. Lei Chen
 			Prof. Cunsheng Ding
 			Prof. Jun Zhang (ECE)
 			Prof. Jianping Wang (Comp., Sci., CityU)


**** ALL are Welcome ****