Laptops are very common these days and almost every college college student has one. Every laptop is equipped with wifi and internet is the hip thing now. So why not make your campus wifi and provide free internet access to everyone in your campus. Covering the entire campus means, you will have to do a mesh network of wifi routers. The best and simplest solution would be to go for routers from Meraki, which has mesh software pre installed.

Do a site survey and determine the number of routers you need. For 25Sq mtr you will need a router. The company has a hosted interface to manage the routers and their configuration. So its relatively easy to setup a mesh network using meraki routers.