A New Approximate Positioning Approach in Wireless Sensor Networks

Nodes in a sensor network are often randomly distributed. To assign measurements to locations, each node has to determine its own position. Algorithms for positioning in sensor networks are classified into two groups: approximate and exact. In this paper, we propose a range-based approximate positioning approach. Then, compare it with another approximate positioning approach (WCL) and an exact positioning approach (QR Factorization). Finally, it was shown that the accuracy of the proposed approach is often between the accuracy of WCL and the accuracy of QR Factorization.