Mixing and combining with AOA and TOA for the enhanced accuracy of mobile location

Position location has become a hot issue over the past few years in wireless communication. Providing the accurate location information of the mobile station (MS) is necessitated by the Emergent 911 call in United States. The angle of arrival (AOA), time of arrival (TOA), and time difference of arrival (TDOA) techniques have been proposed for providing location services in wireless networks. We present a method for the enhanced accuracy of mobile location. This method is mixing and combining with AOA and TOA in wireless networks and picks out mobile location with large deviation to enhance the accuracy of location estimation. Numerical results demonstrate that the proposed location scheme gives much higher location accuracy than the method that only used TOA and AOA location technique.