IoT Architecture Design: Network, Security and Application

PhD Thesis Proposal Defence


Title: "IoT Architecture Design: Network, Security and Application"

by

Mr. Zeyu WANG


Abstract:

The Internet of Things (IoT) has quickly moved from hype to reality. Like other 
disruptive technologies, IoT holds the potential for societal scale impact by 
transforming many industries as well as our daily lives. IoT would benefit the 
world significantly if the generated data from them can be shared securely and 
efficiently.

In this proposal, we mainly focus on the following topics:

1. Scalability and security of blockchain Blockchain is a promising approach to 
make IoT data more valuable. However, current blockchain schemes are lack of 
scalability and face the problem of security. We propose a reputation-based 
secure, high incentive and fast blockchain system. In this work, we leverage a 
Raft-based synchronous consensus protocol and a double-chain architecture to 
guarantee its performance and security.

2. Secure authentication of IoT devices. We discover a vulnerability in popular 
home automation brand related to the authentication procedure of IoT devices. 
Based on this study, we propose a proximity-based mechanism for smartphones to 
authenticate IoT devices which combines large RSS-variation detection and 
matching between RSS-trace and smartphone’s sensor-trace, to perform reliable 
proximity detection

3. Lightweight indoor localization with polarization Indoor localization is a 
promising application in IoT scenario. Current visible light positioning system 
suffers the problem of overhead. We first propose a visible light positioning 
system using polarization modulation. Our system can work with non-intelligent 
light other than general LED and achieves high localization accuracy with 
low-end smartphones. We also design another visible light positioning system 
with an ambient light sensor which leverages the property of frequency aliasing 
and dynamic frequency adjustment. Since the power of ambient light sensor is 
very low, it can enable indoor location inside a smartwatch or other low power 
wearables.


Date:			Thursday, 16 August 2018

Time:                  	2:00pm - 4:00pm

Venue:                  Room 4475
                         (lifts 25/26)

Committee Members:	Prof. Qian Zhang (Supervisor)
 			Dr. Yangqiu Song (Chairperson)
 			Dr. Kai Chen
 			Dr. Ke Yi


**** ALL are Welcome ****