I reside in a university town where the university authority broadcast wireless internet service through hotspots indifferent locations. The hotspot technology is failing frequently because of unmatching frequencies of the hotspots .
Please, cant anyone give me a link where I can access literatures on wireless hotspots
i didn't understand the "unmatched frequency" part of your problem.
wireless access points normally broadcast through 11 standard frequencies. on a ideal day, it will be using the default of channel 7 (and the associated frequency). now if a wireless device assigned a particular IP address is near a particular hotspot, it will be using that channel. and when it moves, it will still maintain the same IP, but use a different hotspot this time, which it finds nearest to it. but if you go far away from any access point, after a certain amount of time, the IP address will be dropped, and the wireless nic will be broadcasting ARP requests for another IP address.
make sure all the access points are powered properly, and all routers or DHCP enabled devices are working properly.