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This paper presents a simple solution suitable for the mandatory localization function for E-911 services specified by FCC. The authors' solution introduces zero-length spring technique to compute the estimated location based on Received Signal Strength (RSS). The introduced zero-length spring concept permits a less detailed path loss model to use without significant impact to the location estimation. They show the stability of their algorithm by illustrating the convergence of the estimated locations computed by the algorithm. They then demonstrate with simulation the accuracy of the estimation with various settings, and compare this accuracy with two candidate localization techniques.
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