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posted by n1 on Friday August 29 2014, @09:31AM   Printer-friendly
from the never-where-you-want-it dept.

Ars Technica reports that in an effort to better understand, and possibly eradicate Wi-Fi dead zones, one man took the hard way by solving the Helmholtz equation for his flat (apartment).

The Helmholtz equation models "the propagation of electronic waves" that involves using a sparse matrix to help minimize the amount of calculation a computer has to do in order to figure out the paths and interferences of waves, in this case from a Wi-Fi router. The whole process is similar to how scattered granular material, like rice or salt, will form complex patterns on top of a speaker depending on where the sound waves are hitting the surfaces.

 
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  • (Score: 0) by Anonymous Coward on Friday August 29 2014, @05:02PM

    by Anonymous Coward on Friday August 29 2014, @05:02PM (#87284)

    awesome!
    may i add that a situation with two stationary is meor easy then with say .. uhm ... two stationary and one moving target. the moving target i have found can upset/change the whole "whispy fillament" ALOT.
    soemtimes if disabling the wifi in the tablet and then moving near to a AP (and then activating wifi) it will "get" the AP and then moving away slowly will make the "filament" follow the tablet.
    doing it this way, you can "pull" the coverage to a location that would normally not get reception, if the tablet-wifi were activated on that spot from zero. -or- maybe it's just the internal transmitter adapting the strength? *shrug*
    wifi is really black magic : )
    line-of-sight = win!
    meor clearance around antenna = win!

  • (Score: 0) by Anonymous Coward on Saturday August 30 2014, @09:51PM

    by Anonymous Coward on Saturday August 30 2014, @09:51PM (#87661)

    First please learn how to write decent English, that was painful to read.

    Second, I imagine your problem is that your tablet is refusing to connect because of the weak signal, but once it has a connection it won't drop the connection until it is truly out of range. If your tablet runs Android. Go into the Wifi settings go into the overflow menu to get to Advanced Settings, then uncheck "Avoid poor connections", and I expect that will solve your connection issue.