Abstract
The non-line-of-sight (NLOS) propagation has become a key obstacle to high accuracy location in urban environment. In this paper, a novel algorithm is proposed based on classical scattering models to mitigate the NLOS errors in location estimation. With distributed multi-antenna, the location of the scatterer that causes the NLOS errors is estimated, and the distance between the mobile station (MS) and the scatterer is also obtained. Then the estimated scatterers are used as virtual base stations (BSs) to locate MSs. Simulation results show that the proposed NLOS mitigation algorithm outperforms other algorithms, which indicates our NLOS mitigating method can be applied in NLOS environment effectively.
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