An Improved Weighted Centroid Localization Algorithm Based on RSSI

Abstract:

In wireless sensor networks, the precise positioning of unknown nodes is the precondition and security for all kinds of applications. In this paper, by analyzing the present research status of personnel positioning algorithm and on the basis of the study of traditional centroid algorithm, an improved based on RSSI (Received Signal Strength Indicator) of the weighted centroid localization algorithm is proposed. The algorithm takes the signal intensity meanwhile the distance between the unknown nodes and beacon nodes as a reference to correct RSSI value. Through the simulation of the localization algorithm it proves that the improved localization algorithm has higher precision than the traditional algorithm. Once the accidents can be timely and efficient rescue for the underground staff, better meet the actual demand of safety management.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 1574-1577
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.1574
• Online since: July 2014
• Authors: Chang Liang Liu*, Zhe Li
• Keywords: MATLAB Simulation, Node Localization, RSSI, Weighted Centroid Localization

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