http://www.trustedreviews.com/opinions/802-11ac-vs-802-11n-what-s-the-difference
http://www.edtechmagazine.com/higher/article/2014/08/time-upgrade-80211ac-vs-80211n
http://www.edtechmagazine.com/higher/article/2014/08/time-upgrade-80211ac-vs-80211n