I'm not sure exactly what a "signal booster" is, but I can tell you there is only 1 way to get better wifi reception: Get a better antenna.
I have not researched this at all, so don't actually buy these things without research, but back in the day a lot of "wardrivers" used to get the orionco card and plug an external antenna to it to get huge reception. I'm not sure if those still exist, but 5 seconds of googling showed me
a 5 dB gain antenna (you can get a higher gain antenna for better coverage connecting to
this usb adapter with antenna plug would do the job.