Citation
Ljung Per. "Opportunities for Energy Savings in Mobile Devices". Talk or presentation, 2, February, 2012.

Abstract
Tomorrow's promise of mobile devices is always-on computation and communication to enrich our lives. Some of these always-on apps might include: better awareness with augmented reality, individualized suggestions from personal agents, better health with caloric and fitness tracking, multi-media life-blogging, and immersive user interfaces. But there is a slight problem. The battery life of today's mobile devices is typically a day or so -- if we're lucky. Modern handsets typically have a 5Wh battery and use about 0.5W for the display, 1W for the radio, and 1W for the cpu. In worst case this is only 2h of battery life. To enable a full day's use with always-on apps, we need to provide for at least a 10x increase in energy efficiency. This talk will review opportunities in energy sources and sinks for mobile devices, including batteries, displays, communication and computation subsystems to identify several possible 2x, 10x and 100x improvements. The Nokia Research Berkeley lab is optimistic, and we are currently prototyping mobile devices with dramatic improvements in energy efficiency.

Electronic downloads

• PEMP%20Feb%202012%20UCB%20Dreams.pdf · application/pdf · 8902 kbytes

• HTML

  Ljung Per. <a
  href="http://chess.eecs.berkeley.edu/pubs/890.html"
  ><i>Opportunities for Energy Savings in Mobile
  Devices</i></a>, Talk or presentation,  2,
  February, 2012.

• Plain text

  Ljung Per. "Opportunities for Energy Savings in Mobile
  Devices". Talk or presentation,  2, February, 2012.

• BibTeX

  @presentation{Per12_OpportunitiesForEnergySavingsInMobileDevices,
      author = {Ljung Per},
      title = {Opportunities for Energy Savings in Mobile Devices},
      day = {2},
      month = {February},
      year = {2012},
      abstract = {Tomorrow's promise of mobile devices is always-on
                computation and communication to enrich our lives.
                Some of these always-on apps might include: better
                awareness with augmented reality, individualized
                suggestions from personal agents, better health
                with caloric and fitness tracking, multi-media
                life-blogging, and immersive user interfaces. But
                there is a slight problem. The battery life of
                today's mobile devices is typically a day or so --
                if we're lucky. Modern handsets typically have a
                5Wh battery and use about 0.5W for the display, 1W
                for the radio, and 1W for the cpu. In worst case
                this is only 2h of battery life. To enable a full
                day's use with always-on apps, we need to provide
                for at least a 10x increase in energy efficiency.
                This talk will review opportunities in energy
                sources and sinks for mobile devices, including
                batteries, displays, communication and computation
                subsystems to identify several possible 2x, 10x
                and 100x improvements. The Nokia Research Berkeley
                lab is optimistic, and we are currently
                prototyping mobile devices with dramatic
                improvements in energy efficiency.},
      URL = {http://chess.eecs.berkeley.edu/pubs/890.html}
  }
  

Posted by Patricia Derler on 3 Feb 2012.
Groups: chessworkshop
For additional information, see the Publications FAQ or contact webmaster at chess eecs berkeley edu.