Research
My research area is in distributed communication and intelligent systems, cybersecurity, energy-efficient and reliable communication.
Mobile broadband is marketed in terms of megabits per second (Mbps). "The more megabits, the faster" is the underlying message of the advertisements. This is true when transferring large files, but for activities such as web browsing or video/voice calls, it is instead packet delay (latency) that affects performance and the experience of how fast the internet connection is.
You can listen to a radio interview on P3 about this here:
https://sverigesradio.se/artikel/6278594
The phenomenon of "bufferbloat" has gained attention, which can cause packet delay to increase many times over. My research involves measuring these delays, investigating the underlying causes, and evaluating and finding ways to achieve both high speed and low latency.
This relates to reliable communication, and in health contexts, it can be vital that the connection functions in a secure manner. In the projects DigitalWell Arena and Digital Health Innovation (DHINO), we collaborate with health care and solution provides and testing in our Telia Northstar 5G testbed.
Here is a a video interview:
https://www.digitalwellarena.se/digitalisering-kan-ge-effektivare-halsotjanster/
https://www.digitalwellarena.se/forskning-i-framkant-om-livsavgorande-infrastruktur/
In addition to computer communications, I am also interested in cybersecurity. Here is a news segment regarding the security of digital access cards and how easily they can still be copied today:
Regarding online traceability, I did an interview for Sveriges Radio: https://www.sverigesradio.se/artikel/6142267
If you are interested in more popular science research presentations, they are available here:
Is your mobile phone eavesdropping on you?
https://www.sverigesradio.se/artikel/forskaren-avlivar-myten-mobilen-avlyssnar-dig-inte
How can wheelchairs be tracked?
How do we meet the challenge of reliable communication?
https://www.digitalwellarena.se/forskning-i-framkant-om-livsavgorande-infrastruktur/
https://compare.se/ett-tryggare-liv-och-en-smidigare-vardag-med-hjalp-av-internet-of-things/
https://www.digitalwellarena.se/digitalisering-kan-ge-effektivare-halsotjanster/
The Internet turns 50!
Teaching
Over the past 25 years, I have taught thousands of students across a wide range of courses—from low-level hardware programming, programming techniques, and software development methodology to data structures and algorithms, data communication, cybersecurity, distributed systems, and the Internet of Things, as well as supervising degree projects. Currently, however, my time is increasingly divided between administrative duties and research.