Results 1 to 7 of 7

Thread: Wi-Fi transmission with 10,000x lower power usage demonstrated

  1. #1
    HEXUS.admin
    Join Date
    Apr 2005
    Posts
    27,967
    Thanks
    0
    Thanked
    1,842 times in 625 posts

    Wi-Fi transmission with 10,000x lower power usage demonstrated

    Passive Wi-Fi tech also easily trounces Bluetooth LE and Zigbee for power thriftiness.
    Read more.

  2. #2
    Not a good person scaryjim's Avatar
    Join Date
    Jan 2009
    Location
    Manchester
    Posts
    14,947
    Thanks
    1,179
    Thanked
    2,206 times in 1,820 posts
    • scaryjim's system
      • Motherboard:
      • Dell Inspiron
      • CPU:
      • Core i5 8250U
      • Memory:
      • 1x 8GB DDR4 2400
      • Storage:
      • 128GB M.2 SSD + 1TB HDD
      • Graphics card(s):
      • Radeon R5 230
      • PSU:
      • Battery/Dell brick
      • Case:
      • Dell Inspiron 5570
      • Operating System:
      • Windows 10
      • Monitor(s):
      • 15" 1080p laptop panel

    Re: Wi-Fi transmission with 10,000x lower power usage demonstrated

    Sounds to me like they need to talk to the graphene researchers at UoM for a bit of synergistic work: http://www.manchester.ac.uk/discover/news/graphene-antenna-could-deliver-cheap-flexible-sensors/

  3. #3
    bored of Vienetta now
    Join Date
    Nov 2009
    Posts
    4,932
    Thanks
    1,160
    Thanked
    717 times in 543 posts
    • ik9000's system
      • Motherboard:
      • Asus P7H55-M/USB3
      • CPU:
      • i7-870, Prolimatech Megahalems, 2x Akasa Apache 120mm
      • Memory:
      • 4x4GB Corsair Vengeance 2133 11-11-11-27
      • Storage:
      • 2x256GB Samsung 840-Pro, 1TB Seagate 7200.12, 1TB Seagate ES.2
      • Graphics card(s):
      • Gigabyte GTX 460 1GB SuperOverClocked
      • PSU:
      • NZXT Hale 90 750w
      • Case:
      • BitFenix Survivor + Bitfenix spectre LED fans, LG BluRay R/W optical drive
      • Operating System:
      • Windows 7 Professional
      • Monitor(s):
      • Dell U2414h, U2311h 1920x1080
      • Internet:
      • 200Mb/s Fibre and 4G wifi

    Re: Wi-Fi transmission with 10,000x lower power usage demonstrated

    The recent developments in this project, shown in the video above, should help facilitate a greater Internet of Things (IoT)
    Not that all of us want a greater IoT. Better mobile battery life sure. My toaster uploading its usage statistics? No thanks.

  4. #4
    Senior Member
    Join Date
    Jun 2013
    Location
    MOMBASA
    Posts
    838
    Thanks
    1
    Thanked
    22 times in 20 posts

    Re: Wi-Fi transmission with 10,000x lower power usage demonstrated

    whats the battery life of the Passive Wi-Fi transmitters?

  5. #5
    Not a good person scaryjim's Avatar
    Join Date
    Jan 2009
    Location
    Manchester
    Posts
    14,947
    Thanks
    1,179
    Thanked
    2,206 times in 1,820 posts
    • scaryjim's system
      • Motherboard:
      • Dell Inspiron
      • CPU:
      • Core i5 8250U
      • Memory:
      • 1x 8GB DDR4 2400
      • Storage:
      • 128GB M.2 SSD + 1TB HDD
      • Graphics card(s):
      • Radeon R5 230
      • PSU:
      • Battery/Dell brick
      • Case:
      • Dell Inspiron 5570
      • Operating System:
      • Windows 10
      • Monitor(s):
      • 15" 1080p laptop panel

    Re: Wi-Fi transmission with 10,000x lower power usage demonstrated

    Quote Originally Posted by ik9000 View Post
    ... Better mobile battery life sure. ...
    Reading up on the technology it's not likely to do a huge amount for your mobile - at least not in the forseeable future - which is likely to still include active WiFi to ensure good connections at high speeds even when considerable distances from the transmitter/receiver bases.

    The whole area of Ambient Backscatter is very interesting - it's basically an extension/modification of the way RFID (which backscatters a dedicated RF transmitter) works, but using - unsurpringly - ambient RF signals like TV/Radio/Active WiFi to both generate power and transmit data (by reflection/modulation of the ambient signal). Well worth reading up on (IMNSHO ).

  6. #6
    Registered User
    Join Date
    Sep 2013
    Posts
    2
    Thanks
    0
    Thanked
    0 times in 0 posts

    Re: Wi-Fi transmission with 10,000x lower power usage demonstrated

    Quote Originally Posted by scaryjim View Post
    Quote Originally Posted by ik9000 View Post
    ... Better mobile battery life sure. ...
    Reading up on the technology it's not likely to do a huge amount for your mobile - at least not in the forseeable future - which is likely to still include active WiFi to ensure good connections at high speeds even when considerable distances from the transmitter/receiver bases.
    My vision of mobile application of this tech would be a seamless handover from the backscatter to active radio, allowing backscatter listen, then transfer to active when data is being transmitted or received. To optimize for this some qos shaping, and background service scheduling for delayed transmission could be used to ensure that once the active radio was fired up, a large burst of data could be transmitted before going quiet again.

  7. #7
    Senior Member watercooled's Avatar
    Join Date
    Jan 2009
    Posts
    10,691
    Thanks
    1,488
    Thanked
    914 times in 786 posts

    Re: Wi-Fi transmission with 10,000x lower power usage demonstrated

    Quote Originally Posted by Meat_PoPsiclez View Post
    My vision of mobile application of this tech would be a seamless handover from the backscatter to active radio, allowing backscatter listen, then transfer to active when data is being transmitted or received. To optimize for this some qos shaping, and background service scheduling for delayed transmission could be used to ensure that once the active radio was fired up, a large burst of data could be transmitted before going quiet again.
    Unless I misunderstand what you mean, you don't need anything fancy for low power listening anyway, and mobiles have been doing that for decades - constantly listening to a lower complexity control channel. It's how you can get weeks of battery life if you leave a basic mobile phone in standby.

    WRT the article, I must say I'll be reserving enthusiasm until I see it demonstrated especially given the bitrates and distances they're claiming (let alone its WiFi compliance). It's one thing being able to receive and have a modem running at very low power, but they need to be able to output a signal with enough power for a receiver a good distance away to be able to interpret it reliably. And as they don't have a dedicated power source like RFID, they're relying on a potentially intermittent supply depending on the environment.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •