We have a local network (A) of about 50 computers connected via gigabit ethernet. We get a connection to the internet using two broadband connections to a backbone and distribute the bandwidth across the 50 computers using a CISCO 1811 router, but the bandwidth is not enough for everybody.

There is a campus wide wireless network(B) that has very high bandwidth, is there a device or way to setup multiple individual connections to network B and supply the bandwidth to our network A?