While this article is a few years old, it was written very well. (Provided detailed article of previous DAS Forum). It provides good business and technical architecture design requirements. Definitely not written in a marketing way. It is posted on www.thedasforum.org (Now HetNet). Pay attention to Page 4 and the considerations about WLAN combined with a Distributed Antenna System.
Download DAS-Neutral-Host-Design-White-Paper-HetNet-abbreviated
Download Considerations-in-deploying-a-neutral-host-DAS-final
