Most projects that I undertake are subject to contractual agreements that restrict publication. Where possible, technical reports and white papers will be released soon.
M2M Waveform Analysis
This post-doctoral research project investigates the physical layer properties of M2M and IoT wireless protocols to build a stronger awareness of the behaviour of devices and the environment around them.
The project involves different approaches to using traditional data sources as well as measurements taken from the physical layer using digital signal processing.
Transmissions are generated by networks of M2M devices in indoor and outdoor environments. Current work includes evaluation of communication solutions such as LoRa, SigFox and NB-IoT.
- Development of automated testbeds, custom embedded firmware, distributed Linux for IP-control and signal capture.
- Development of server-based signal processing environments to support distributed digital RF analysis and data visualisation.
- Development of signal processing software to evaluate waveform behaviour from sizable datasets in GNURadio, MATLAB and Python.
The specific signal processing approach and results are currently pending publication.
Distance Based Message Authentication
DBMA began as a doctoral study investigating distance-bounded authentication of wireless messages. The concept was designed to augment cryptographic authentication by using channel properties that are hard for a malicious user to replicate.
- Development of the RTTMAP protocol, securely combining RF ranging with message exchange.
- Embedded code development using C on Atmega128 devices.
- Trial of RF ranging solutions including Nanotron NanoPAN and Time Domain PulsON.
- Analysis and evaluation of performance in several environments using a Java framework.
Initial results of this work were reported in my thesis.