An Improved RSSI Positioning Algorithm Based on Reference Distances

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Abstract:

Due to the fluctuation of RSSI (Received Signal Strength Indicator) value, the positioning accuracy of indoor localization algorithm that based on RSSI value is not high and unstable, RSSI filtering and reference distance used in this paper. Fluctuation amplitude of RSSI is reduced by mean filtering, and a known distance between anchor nodes introduced when calculating the unknown distance between blind node and anchor node. According to the result of experiment, the positioning accuracy of new localization algorithm can reach 1.45 meter, and it can meet the demand of indoor positioning.

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Advanced Materials Research (Volumes 971-973)

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1547-1552

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June 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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