Hi Banti,
Sure, You can use the wireless bridges from Cisco. You'll have to se 2 bridges, one as a root bridge & another one as a non-root bridge. You'll have to deploy external antennae keeping distance, interference, line of sight, gain of the antenna under consideration. Preferably get a site survey done from a professional site surveyor to get the exact specs. for the antennae. I can also give u the specs, but it'd be generic & not particular to the ambience around the wireless lan setup.
Your connection might look like this:
Backbone Connection
Switch
Wireless Root Bridge
Wireless non-root bride
Switch
Wired clients.
Lemme know if you need any more infrmation.
Thanks & Regards,
Karthik N
