And optimazation is critical. Most routers have omnidirectional antennas that send the signal in the most useful places[0] and there even are routers that use s

And optimazation is critical. Most routers have omnidirectional antennas that send the signal in the most useful places[0] and there even are routers that use some fancy aiming algorithm[1]. [0]:http://superuser.com/questions/99082/direction-of-wifi-antenna http://superuser.com/questions/99082/direction-of-wifi-anten... [1]:on mobile so no link and I've only heard about it from my dad.