Postdoctoral Research Fellow
National University of Singapore
I am a Singapore PR, currently working as a postdoc under Prof. Chan Mun Choon in the Communication and Internet Research lab at the School of Computing in NUS. My postdoctoral research is on resource-constrained wearable sensing and activity detection in the context of smart transportation applications. I received my Bachelor of Engineering (B.E.) degree in Computer Science in 2010 from PES Institute of Technology, Bangalore, India, and my Ph.D. degree in Computer Science in 2016 from the National University of Singapore. When I'm not doing research, you can usually find me on the rock climbing wall or in the ice rink.
Many of my projects are for fun and self interest. I have used C, C++, Java, and inline assembly, have coded for Android, Android Wear, Contiki, TI RTOS, Linux, and Windows, and am familiar with Bluetooth LE (both master and slave sides) and Zigbee communication.
I have been working in academic research since 2009, starting from my Bachelors where I worked on multi-threaded algorithms in bioinformatics, to my PhD where I worked on smartphone and smartwatch sensing, and to my postdoc where I work on extremely resource-constrained sensing on wearable smart tags.
My professional work, research, and teaching experience, including voluntary professional mentoring, training, talks, reviewing, and serving as a conference technical program committee member.
Other than research and coding, I regularly do rock climbing, speed ice skating, and yoga.
I developed a wearable system using a sensor tag, that operates similar to Fitbit, but for travel activities instead of fitness activities. The user wears/carries the tag during the day, and can later sync it with the phone via Bluetooth to view the travel timeline and statistics.
I developed a bus tracking application for three different devices: two wearables (an Android smartwatch, and a sensor tag), and an Android smartphone. I make novel use of the barometer (air pressure) sensor for extremely low-power operation (high-power location sensors like GPS are not used) and a memory-optimized lightweight algorithm.
MySketchUp is a 3D graphics editor I wrote for self-interest during my Bachelors, using OpenGL. Using the editor, we can draw simple coloured 3D scenes.
This is a simple bootloader I wrote for self-interest during my Bachelors, that loads, relocates, and runs a 16 bit C++ executable into memory from a bootable CD. You can run it on an Intel machine, or use VirtualBox.
MyThread library is a simple user-thread library I wrote for self-interest during my Bachelors, to demonstrate the "Many to One" multithreading model.
I designed and implemented a WPA password cracking tool, as part of a systems security course group project, using inexpensive GPU compute power on the cloud. The tool can crack 8 digit passwords in less than 2 hours, at a cost of less than $2.
This is a DASH-compliant video hosting service I wrote for a multimedia course project. The user can take a video on an Android tablet/phone, and upload it to a DASH video hosting server. The video can then be played in any DASH-compliant player (such as VLC player) dynamically switching between 3 streamlet qualities.
I developed a middleware for Android that supports Delay-Tolerant Network (DTN) applications. Forwarding protocols can be dynamically loaded, replaced, and customized, at run-time, to suit diverse application requirements and network scenarios. Using the middleware, I developed a mobile web application to help wheelchair people board buses easily.
