|Nov 26, 2012, 11:01 AM||#1|
Battery use on high traffic public wi-fi network
I have a variety of devices (iPhone 5 and a laptop for example). While I'm on my university campus, using the shared wi-fi, my battery life on all devices is markedly shorter ... or at least appears to be.
Since there is heavy traffic on each access point I use (fellow classmates transmitting lots of data), I'm wondering about the technical side of wi-fi. If I understand the protocol correctly: every packet is received by every device, processed and then discarded if not intended for that machine. Is this correct?
Does this mean that the wi-fi radio is constantly receiving, and therefore draining the battery of the device?
(My background: One-time network engineer, but little wi-fi beyond home use. Feel free to be technical... I can always Google it later!)
2010 Hexacore 3.33GHz Mac Pro, 24 GB ram, 240 GB Vertex 2 SSD, 6 TB RAID0, 27" ACD, 24" Dell
2011 1.8GHz MacBook Air 11", 4GB ram, 250 GB Apple SSD
|Nov 26, 2012, 11:12 AM||#2|
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