Decreasing the Localization Error in Border Areas of Sensor Networks

The centroid localization scheme is a very efficient and resource aware algorithm to estimate a position. On a sensor node, the precision of the position depends on the number of different beacons positions the node receives. In networks with a small transmission range, the localization error behaves very balanced over the whole network. But in very large sensor networks with high transmission ranges, the localization error behaves very unsteady and is increased in most border regions of the network. This paper presents a new algorithm Centroid Localization with Edge Correction (CLwEC) to decrease the localization error in border regions of a network significantly.