Projects
Ultra-Low Power/Energy Digital Design
The goal of this project is to develop a pass-transistor based logic family able to guarantee low leakage and high-speed in a reduced voltage environment.
Contact Point:Louis Alarcon (lalarcon@eecs.berkeley.edu)
Reactive Radio
In sensor networks, a large fraction of the total communication power is consumed by monitoring the channel,sensing the presence of data.
This limitation can be overcome by delegating the channel sensing task to a separate Carrier Sense Receiver. This receiver cannot exploit duty cycling to reduce its power dissipation, which for sensor networks applications should be lower than 75uW
Contact Point:Nathan Pletcher(pletch@eecs.berkeley.edu)
Intelligent Object/Smart Tire System
Description: In a class of sensor networks, there exists great
asymmetry between the wireless receiver and the transmitter.
Applications include automotive, biological implants, RFID, etc.
This project seeks to explore the design opportunities presented
by link asymmetry at both system and circuit levels. The
primitive design objective is to provide 2Mbps transmission rate
over an effective
distance of 2m with the average power less than 100uW.
Contact Point:David Chen(chen05@berkeley.edu)
Short Range Wireless Transceiver
In many scenarios (distribured storage systems, implantable electronic systems) the need of a communication link covering only a few centimeters and with moderate or low data-rate is emerging. Ultra-wideband radios are attractive for this application
Contact Point:
Davide Guermandi(dguerma@libero.it)
Simone Gambini(sssimone@eecs.berkeley.edu)
Wide-tuning range systems employing high-Q resonators
Micromechanical resonators provide quality factor in the thousands range, and are therefore ideally suited for application in low-power systems. Unfortunately, if conventional techniques are used, the high quality factor reduces the tuning capability of these structures to virtually 0.
We therefore explore innovative architectural solutions to regain tuning range and extend the applicability of micromechanical resonators outside the filtering space.
Contact Point: Michael Mark(markm@eecs.berkeley.edu)
Temperature Compensated FBAR Oscillator
We try to develop circuit techniques, as well as circuit/resonator codesign techniques to build an FBAR-based TCXO replacement, overcoming the well known 25ppm/C slope of Film Acoustic Wave Resonators.
Contact Point:Jesse Richmond (jar@eecs.berkeley.edu)
Distributed Synchronization in Dense Networks
The goal of this research activity is to analyze the possible options
for network synchronization in dense sensor networks, and to design a
power efficient and robust synchronization scheme.
Contact point: Luca De Nardis (lucadn@eecs.berkeley.edu)
Collaborative Radio
We explore the possibilities of building a radio recevier using unconventional techniques. Instead of relying on the accuracy of a few components, we try to take advantage of increased density of advanced processes, using a network of connected oscillators to produce a highly selective filtering and frequency-synthesis function.
Contact Point:
Simone Gambini(sssimone@eecs.berkeley.edu)
SRAM
Circuit design and error control coding techniques are combined to realize ultra-low voltage, ultra-low power SRAM
Contact Point: Huifang Qin(huifangq@eecs.berkeley.edu)
PicoCube
Development of advanced packaging and integration techniques aiming at the developement of a 1cm3 completely self contained node(including batteries and antenna)
Contact Point:Fred.L.Burghardt(flb@eecs.berkeley.edu)
