On Impact of Topology and Cost Function on LSE Position Determination in Wireless Networks
نویسندگان
چکیده
In this work, effects of the anchor nodes geometry on the positioning error are evaluated for a least squares estimation (LSE) of the linearized multilateration problem. It is shown that for different node topologies, the choice of the cost function has a significant impact on the variance and bias of the averaged position error. The importance of knowledge of the range error model is discussed. MonteCarlo simulations are presented, which verify the results of theoretic discussions. It is shown that an unbiased averaged position error can be obtained in the case when biased and correlated range estimates are present.
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