Accuracy analysis of mobile station location in cellular networks

Nowadays the accuracy of existing location methods in networks is insufficient, particularly in emergency calls. Modification of chosen algorithm parameters leads to improvement of the accuracy of an MS position estimation. The most important parameter, which decides on location accuracy of an MS, is a true value of distance between a mobile station and a base station (BS). The improvement of this parameter accuracy significantly improves the location service quality in cellular phone networks, especially in a multipath propagation environment. The multipath propagation effect, which decreases the receiver signal quality, could be utilized to improve an estimation of the accuracy of the distance between an MS and a BS. A novel path loss formula for calculation the distance between an MS and a BS in the Cell ID + RSS method was presented.