David is pursuing his PhD in the Pister group at UC Berkeley. He graduated from the University of Washington in 2007 and spent several years in government and academic research, including positions at Sandia National Laboratories, Livermore and McMurdo Station, Antarctica. His research interests include wireless sensor networks, data fusion, MEMS design, and robotics. He is formerly a National Defense Science and Engineering Graduate (NDSEG) fellow.
Single Chip Mote [BPN803]
To exploit the true potential of ubiquitous connectivity at scale, wireless nodes in
a sensor network need to have a long lifetime and low cost. To reduce the cost of a sensor
node, complete system integration is needed, including communication, computation, sensing, and
power management on a single integrated circuit with zero external components. Therefore, a
Single Chip Mote sensor node is being developed that is intended to operate from harvested
energy stored in an integrated printed battery. Low-power wireless communication plays a key
role in extending the lifetime of a wireless sensor due to high active power consumption of
the radio in comparison to the rest of the node. Traditional transceiver architectures also
require off-chip components such as crystal oscillators and passives, which must be eliminated
in order to enable a completely monolithic solution. The elimination of external components,
combined with reduction in transceiver power consumption, will truly enable perpetual operation
of wireless nodes at low-cost and hence realize the vision of ubiquitous connectivity at scale.