How can I figure out what type of antenna (e.g.
omni, Yagi, parabolic, etc) I should use to increase
my SNR to an 802.11n router signal to which I do
not have line of sight? A straight line running
between the antennas would run through approximately
30 m of interior construction. With a 1 dBi antenna
the noise is at about -92 dB while the signal can
range between -70 dB down to -90 dB and the link
is frequently lost. How can I figure out how much
gain on my antenna would be appropriate, 6 dBi,
12 dBi, 15 dBi, and what pattern would be appropriate?
I’m an EE but I have no RF experience and I'm
looking to learn more about how to make such decisions.
I would greatly appreciate your advice or
any references or tutorials you can point me to.