Monday, March 29, 2010

existing localization

As summarizes the existing localization algorithms and compounds the features of WSN and localization request, this paper proposes a localization algorithm based on ugg boots 2010 RSSI (LABOR). The algorithm adds advanced nodes to be beacon nodes in order to assist in localization. The advanced nodes have enough energy and large radio cheap polo shirts power. Their communication fields can ranges the whole WSN. LABOR changes the method that the nodes receive localization information passively. In this algorithm, nodes which need to be localized send requests actively. The beacon nodes process the requests cooperatively. At last, nodes use Monte Carlo method to estimate their best clothes blog positions. Because of just localizing some nodes which have requests, the algorithm is easy to use. It has fewer communication packages, so it lessens the energy discount wedding prom dresses consumption of the whole nodes and extends the living life of WSN. Furthermore, the algorithm in this paper raises localization accuracy by setting range emendation weight and select beacon nodes wedding dresses form china optimizingly.In the end, this paper simulates the algorithm in MATLAB for different network deployments. The simulation result shows that LABOR is a robust algorithm. It is suitable and extendable for randomly-deployed WSN.
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