My use case is for security camera installations. I need to interconnect several remote locations into a central monitoring station. Right now, I'm using pools of copper wired connections, all linked together using fiber optic cables. But I need to replace this fiber optic cabling with wireless. What at the devices that I should be using? What are the popular vendors for these?
I have been using this, http://www.ubnt.com/bullet along with good antennas for my wireless links. I prefer using the Bullet + antenna because it gives me far more choices in antennas then a having the radio and antenna built into one unit. I have a 13KM link going with two Bullets and 24dBi antennas.
What exactly you need will depend on what you are trying to do.