I want set up a wireless network in locality. I already know how to set up LAN ( wired) but i tried to set up but this require extra manpower and hooking wire to electricity pols, which i don't want.

Is there any wireless solution that meets my requirement. I have access to my building top roof for installing Anteena or similar device. I have Cisco APN aeronet 1100. Switch 16 prot, Netgear wifi..
kindly guide me...