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http://dx.doi.org/10.3837/tiis.2015.06.009

Distance Geometry-based Wireless Location Algorithms in Cellular Networks with NLOS Errors  

Zhao, Junhui (School of Electronics and Information Engineering, Beijing Jiaotong University)
Zhang, Hao (School of Electronics and Information Engineering, Beijing Jiaotong University)
Ran, Rong (School of Electrical and Computer Engineering, Ajou University)
Publication Information
KSII Transactions on Internet and Information Systems (TIIS) / v.9, no.6, 2015 , pp. 2132-2143 More about this Journal
Abstract
This paper presents two distance geometry-based algorithms for wireless location in cellular network systems-distance geometry filtering (DGF) and distance geometry constraint (DGC). With time-of-arrival range measurements, the DGF algorithm estimates the mobile station position by selecting a set of measurements with relatively small NLOS (non-line-of-sight) errors, and the DGC algorithm optimizes the measurements first and then estimates the position using those optimized measurements. Simulation results show that the proposed algorithms can mitigate the impact of NLOS errors and effectively improve the accuracy of wireless location.
Keywords
Wireless Location; Distance Geometry; NLOS; TOA; Cellular Network;
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