Received Signal Strength Technique Performance in Sensor Network Localization Application

Abstract

In this paper, we initially present RSSI vs Distance test results performed indoor and outdoor with Texas Instruments CC2431 Development Kit. In addition, Location Engine of Development Kit performance is presented with 3 and 4 reference nodes. An alternative algorithm based on Cayley-Menger Determinant, proposed by M.Cao, B.D.O. Anderson and A.S. Morse has been implemented in Matlab and it is compared with Location Engine. It is concluded that accuracy of alternative one slightly better than Location Engine with 3 reference nodes. Increasing reference node count makes Location Engine more accurate.