New Dv-Distance Algorithm Based on Path for Wireless Sensor Network

Wireless location is one of the core technologies of Wireless Sensor Network. In many applications, the accuracy of the location is the precondition of the useful of data information the node collected. Under the premise of cost limits, improving the accuracy of wireless sensor node position has crucial significance. After analyzing reasons of the location weakness of Dv-Distance algorithm due to errors caused by different paths, we propose an estimation algorithm that is based on the distance of different paths between node and the anchor node, thereby balancing the error of different paths to locate the node. This is an improved algorithm which is based on circle focal point positioning.