Fiscal Year	2011
Division	Graduate School of Engineering & Applied Science
Department	Electrical & Computer Engineering
Investigator(s)	McEachen, II, John C. Tummala, Murali
Sponsor	Secretary of the Air Force (Air Force)
Summary	Mobile broadband adoption is occurring on a global scale taster than adoption of any other technology in history, including the adoption of mobile phone. Long Term Evolution (LTE) and WiMax are two emerging and competing technologies for the next generation of mobile phones. Specifically, WiMax was recently backed by a $3.2B investment by a consortium of Intel, Google, Sprint and others. Nationwide WiMax networks are already deployed and in use in countries like Pakistan, Iran, and Columbia. On the other hand, the ten largest mobile phone operators in the world have committed to LTE when commercial handsets become available. The objective of this continuing research is to develop precision geolocation techniques based on control messages used by 4G basestations and subscribers. This will be done through analysis of traditional geolocation techniques and modification of the computational constraints to incorporate the WiMax control information. This approach leverages prior knowledge of mobile phone geolocation with new knowledge of the 4G signals. Validation will be conducted through actual field testing at Yuma Proving Ground and simulation of 4G mobile intercept under a variety of conditions.
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Publications	Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal
Data	Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal