Wireless-enabled GPS indoor geolocation system

In this paper we discuss a wireless-enabled GPS indoor geolocation system which will provide centimeter level position level accuracy 99.999% of the time and meet the integrity requirements in the tough areas such as indoors, undergrounds, and in tunnels in direct response to President Obama's call for building nation's best E911 infrastructure emergency response system in the world. With tremendous growth of the wireless technologies in the 2.5 GHz, 3.1 to 10.6 GHz in accordance with the IEEE 802.15.3a Standard and with the hope that someday there maybe some UWB part of the spectrum usable in the L band to enable building Wi-Fi-enabled GPS Indoor Geolocation Systems available for the general public. In this paper we discuss the (1) wireless signal design; (2) wireless-enabled, GPS navigation algorithm; (3) the feasibility and practicality for building a wearable system.