https://tools.ietf.org/id/draft-hallambaker-iab-deployment-00.html
https://www.janog.gr.jp/meeting/janog38/newsletter/column-06.html
http://www.revolutionwifi.net/revolutionwifi/2014/08/80211ac-receiver-sensitivity.html
https://community.arubanetworks.com/aruba/attachments/aruba/tkb@tkb/121/1/RF-Basics_Part1.pdf
http://www.f2ff.jp/interop/2014/noc/shownet-topology-map.php
https://www.tele.soumu.go.jp/giteki/SearchServlet?pageID=js01
http://www.daiken-kasei.com/products/detail.php?product_id=431