Centroid algorithm, as relatively simple, depends upon the connectivity of WSN and nodes density, in which the error of node orientation is high, the calculation for the minimum error is too lager and the time which it takes too long. In this paper, a new node localization algorithm uses intelligent particle swarm optimization (PSO) to fast convergence speed based on the proposed weighted vector centroid algorithm. The simulation results show that the localization error of centroid algorithm is decreased rapidly and our proposed algorithm is efficient for WSN.
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