The location of the mobile station (MS) can be estimated from the distance measures between MS and several base stations (BS). However, the distance measure accuracy is degraded due to the complicated indoor environment, particularly non line-of-sight (NLOS) propagation. In order to improve the accuracy of wireless localization, the knowledge of whether the BS - MS path is line-of-sight (LOS) or NLOS may be of significant importance. Several papers have proposed to use kurtosis for the NLOS
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