Wireless Mesh network routing protocol based on multi - routing metric

Abstract

Node positioning system can quickly determine the position of the multiple nodes.On how to improve the performance of multiple nodes localization, multiple nodes localization algorithm based on integration of subframe estimation and cluster analysis is proposed.First, a signal is divided into 8 subframes.Each subframe signal using the phase variation is calculated in response to the power control weighting function, which searches the node signal source position to obtain the maximum value of the subframe estimation.Because the signal in the time domain node is sparse, these estimates correspond to a plurality of node signals position.Then the estimated values of the sub-frames are divided into several categories using the convergence of clustering algorithm.Finally controlled in response to the sub-frame by the average estimated value of the power function was evaluated to give the final node source location estimation.Experimental results show that in the case of 2-3 nodes, the positioning performance of the algorithm is much higher than traditional algorithms.