The proliferation of Wireless Sensor Network has fostered growing interest in self-localization branch. This paper present a novel localization algorithm based on received signal strength indicator to solve the limitation of reconstructing the signal strength data set when environment change. The received signals strength ratio of both anchors and virtual references nodes to determine the position of user nodes. The algorithm only needs construct the signals ratio data set once in certain changed circumstances. Simulation results show that the new scheme precise locate efficiently using the proposed algorithm. Moreover, the algorithm performs well when environment change, which makes the proposed algorithm well flexible and practical.
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