• Publications
  • Influence
Ambient backscatter: wireless communication out of thin air
The design of a communication system that enables two devices to communicate using ambient RF as the only source of power is presented, enabling ubiquitous communication where devices can communicate among themselves at unprecedented scales and in locations that were previously inaccessible. Expand
Design of an RFID-Based Battery-Free Programmable Sensing Platform
To the authors' knowledge, WISP is the first fully programmable computing platform that can operate using power transmitted from a long-range (UHF) RFID reader and communicate arbitrary multibit data in a single response packet. Expand
Large-scale concept ontology for multimedia
The large-scale concept ontology for multimedia (LSCOM) is the first of its kind designed to simultaneously optimize utility to facilitate end-user access, cover a large semantic space, make automated extraction feasible, and increase observability in diverse broadcast news video data sets. Expand
Analysis, Experimental Results, and Range Adaptation of Magnetically Coupled Resonators for Wireless Power Transfer
A circuit model is presented along with a derivation of key system concepts, such as frequency splitting, the maximum operating distance (critical coupling), and the behavior of the system as it becomes undercoupled, including the introduction of key figures of merit. Expand
Wi-Fi backscatter
Wi-Fi Backscatter is presented, a novel communication system that bridges RF-powered devices with the Internet and shows that it is possible to reuse existing Wi-Fi infrastructure to provide Internet connectivity to RF- powered devices. Expand
PASSIVE WI-FI: Bringing Low Power to Wi-Fi Transmissions
Passive Wi-Fi is introduced that demonstrates that one can generate 802.11b transmissions using backscatter communication, while consuming 3-4 orders of magnitude lower power than existingWi-Fi chipsets. Expand
The local mean decomposition and its application to EEG perception data
  • Joshua R. Smith
  • Mathematics, Medicine
  • Journal of The Royal Society Interface
  • 22 December 2005
The paper presents the results of applying LMD to a set of scalp electroencephalogram (EEG) visual perception data, and suggests that there is a statistically significant difference between the theta phase concentrations of the perception and no perception EEG data. Expand
Universal features of the equation of state of solids
A study of the energetics of solids leads to the conclusion that the equation of state for all classes of solids in compression can be expressed in terms of a universal function. The form of thisExpand
Adapting Multimedia Internet Content for Universal Access
This work presents a system that adapts multimedia Web documents to optimally match the capabilities of the client device requesting it using a representation scheme called the InfoPyramid that provides a multimodal, multiresolution representation hierarchy for multimedia. Expand
Inter-Technology Backscatter: Towards Internet Connectivity for Implanted Devices
Inter-technology backscatter is introduced, a novel approach that transforms wireless transmissions from one technology to another, on the air, thus enabling the vision of Internet connected implanted devices. Expand