Upgrade Wi-Fi chipsets will save up to 44% of battery charge
Smartphone owners are well aware of how strongly the Wi-Fi module “eats” the battery. In fact, the phone is the largest item of battery consumption after the display and 3G. Even in the “sleep” mode of the phone, Wi-Fi is still periodically activated to check incoming traffic (idle listening). The problem is that in idle listening mode it often consumes about the same amount of energy as in data transfer mode.
Therefore, it is very good news that researchers from the University of Michigan, with funding from the National Science Society of the United States, have found a way to significantly reduce the power consumption of Wi-Fi. The E-MiLi (Energy-Minimizing Idle Listening) technology reduces the number of idle listening checks by a factor of 16, while retaining the ability to quickly “wake up” when an incoming packet arrives (although the packet header must be encoded in a special way). Calculations showed that for the absolute majority of smartphones in real conditions, power consumption is reduced by about 44%.
The only hitch is that in order to implement E-MiLi, you need to update the firmware on all devices that send Wi-Fi packets so that they change the encoding of the packet headers. If the manufacturers of Wi-Fi chipsets adopt a new technology, then a few more years will pass until new versions of smartphones come out, not with software, but with hardware support for E-MiLi.
The E-MiLi presentation will take place on September 21 at the ACM International Conference on Mobile Computing and Networking in Las Vegas.
Therefore, it is very good news that researchers from the University of Michigan, with funding from the National Science Society of the United States, have found a way to significantly reduce the power consumption of Wi-Fi. The E-MiLi (Energy-Minimizing Idle Listening) technology reduces the number of idle listening checks by a factor of 16, while retaining the ability to quickly “wake up” when an incoming packet arrives (although the packet header must be encoded in a special way). Calculations showed that for the absolute majority of smartphones in real conditions, power consumption is reduced by about 44%.
The only hitch is that in order to implement E-MiLi, you need to update the firmware on all devices that send Wi-Fi packets so that they change the encoding of the packet headers. If the manufacturers of Wi-Fi chipsets adopt a new technology, then a few more years will pass until new versions of smartphones come out, not with software, but with hardware support for E-MiLi.
The E-MiLi presentation will take place on September 21 at the ACM International Conference on Mobile Computing and Networking in Las Vegas.
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Source: https://habr.com/ru/post/128657/
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