Hajim School of Engineering and Applied Sciences Department of Electrical and Computer Engineering

Research Opportunities

While we'll post research opportunities here as we learn about them, we suggest that you contact faculty who are engaged in research that interests you.

Undergraduate Research Spotlight

Working for Associate Professor Wendi Heinzelman in summer 2007, Kyle Aures was supported by an REU from the Communications and Cyber Systems (ECCS), and Jian Chen was supported through the NSF SENSORs project. Their research focused on different aspects of Heinzelman’s image-based sensor network project. They continued on-going work in interfacing an analog camera with the MoteIV Tmote Sky motes, further refining the camera-motes and enabling low-resolution images to be transmitted wirelessly over the low-data-rate IEEE 802.15.4 radios. They also explored the use of ADPCM pixel-domain compression to reduce the time to transmit an image, and they researched medium access control protocols for enabling multiple camera-motes to operate simultaneously.

Additionally, Kyle and Johnny continued work on developing mote-based ultrasound and RF-based solutions for automatic distance finding between two participants in a human interaction study. The goal of the project is to develop original algorithms to find distance using these methods and to test and quantify their effectiveness in a real setting.

Sarah Rosenstein also held a summer 2006 REU with Heinzelman. She was supported by the NSF Directorate for Computer and Information Science and Engineering (CISE) and worked on sensor management protocols and cross-layer design for wireless sensor networks. She looked at the effects of varying protocol parameters on the lifetime and quality of service provided by a sensor network. Specifically, Sarah developed new techniques for adapting the query period of a protocol to extend network lifetime.

Steven Wik worked with Heinzelman via an NSF REU from CISE on sensor management and cross-layer design for wireless sensor networks. Specifically, Steven worked with Heinzelman’s new cross-layer architecture called X-lisa, porting a layer-fusion protocol called XLM to the X-lisa architecture with the goal of determining whether most of the gain obtained by XLM was due to cross-layer information exchange rather than layer fusion.

Steven also worked on the TRACE protocols. He developed an end-to-end demonstration system that shows clearly the per-user performance achievable using Heinzelman’s TRACE framework for real-time voice and video transmission in a mobile ad hoc network. He experimented with the effects of asymmetric links on the TRACE protocols.

ECE major Brian Chia held an REU with Professor Thomas B. Jones during the summer of 2006. Brian worked on multiphase voltage drivers for microfluidic devices, and his research was supported by the Center for Electronic Imaging Systems (CEIS).

ECE major Gloria See worked with Distinguished Professor Philippe M. Fauchet during the summer on an NSF-funded betavoltaic project in collaboration with Houston’s BetaBatt company. Gloria fabricated and characterized the current-voltage behavior of p-n diodes made of porous silicon. She also produced the porous silicon material, fabricated the devices, and measured their photovoltaic response. Says Fauchet, “In doing all this, Gloria See basically acted as a PhD student.” Her Fauchet group mentor was PhD student Jeffrey P. Clarkson.

Kishore Padmaraju worked with Professor Roman Sobolewski in the summer of 2007 on electro-optic sampling of a GaAs photoswitch. He did experimental characterization and numerical simulation of GaAs photoconductive, metal-semiconductor-metal switches and wrote a MatLab program to simulate the switch performance.

Research