Upgrading a Gemini Observatory's Wireless Network to 802.11 N Technology

My project is upgrading the wireless network from 802.11 G to 802.11 N technology.  The advantages are faster speeds, stronger signal, and better throughput.  The site I am working on is Gemini’s Hilo Base Facility on the Big Island. A written procedure for the two other sites in Chile (Southern Base Facility and Cerro Pachon Observatory) will follow. The challenge I am facing is upgrading the network with optimum placement of the wireless access points and minimizing security risks from signal bleed.  One of the tasks performed is called a site survey.  I am using a program called NetSpot App, open source software, to analyze the current wireless network for signal strength, noise, and interference.  This program helped me determine that the signal travels far and beyond the facility, and a method to limit the signal strength will need to be identified.  I have researched new wireless access points, and I am waiting for my mentors to select a product for the facilities.  After a selection has been made, they will order a test unit.  I will need to conduct further research on the new hardware to determine optimum placement for the access points.  When the research has been completed and security measures have been resolved, we will proceed with the physical upgrade of the equipment in the facilities.