Many institutions implement a distributed antenna system (DAS) as part of a holistic approach to providing better wireless coverage and capacity on campus. A DAS provides wireless service within a particular area or structure via a network of separate antenna nodes that are connected to a common source through fiber or coaxial cable. Because DAS antenna node installations are compact, they can be deployed either inside or outdoors. They are more expensive to deploy than macrocellular towers, however, so DAS networks are often used to augment coverage and address capacity constraints in a targeted area. For many institutions, the most economical way to obtain both coverage and capacity on campus is probably a hybrid approach that utilizes a variety of technologies, including DAS, other small cells, and even macrocellular towers. Universities can help bring down the cost of a DAS by contributing existing campus assets and resources such as fiber, space to house the DAS base-station hotel, and staff familiar with the existing IT infrastructure. Before a school deploys a DAS, administrators should consider what additional services they might want to provide via the network. Many colleges and universities use their DAS to add applications covering student safety, security, and event and transportation updates. Some schools even push courseware to wireless devices, while others use it to make money from third-party vendors by sharing revenues from apps designed for campus use or from advertising opportunities.