Battery-Free Cellphone

  title={Battery-Free Cellphone},
  author={Vamsi Talla and Bryce Kellogg and Shyamnath Gollakota and Joshua R. Smith},
We present the first battery-free cellphone design that consumes only a few micro-watts of power. Our design can sense speech, actuate the earphones, and switch between uplink and downlink communications, all in real time. Our system optimizes transmission and reception of speech while simultaneously harvesting power which enables the battery-free cellphone to operate continuously. The battery-free device prototype is built using commercial-off-the-shelf components on a printed circuit board… CONTINUE READING
Highly Cited
This paper has 43 citations. REVIEW CITATIONS
Related Discussions
This paper has been referenced on Twitter 73 times. VIEW TWEETS


Publications citing this paper.
Showing 1-10 of 21 extracted citations

Battery-free Visible Light Sensing

View 7 Excerpts
Highly Influenced

Similar Papers

Loading similar papers…