The Key Metric forEvaluation Localizationin Wireless Sensor Networks via Distance/Angle Estimation Algorithm (D/A-EA)

Wireless sensor network localization is an importantarea that attracted significant research interest.. Hence, localization schemes for wireless sensorAlthough mobility would appear to make localization more difficult, in this paper We present a new method bywhich a sensor node can determine its location by listening to wireless transmissions from three or more fixed beacon nodes and argue that it can exploit mobility to improve the accuracy and precision of localization. Our approach does not require additional hardware on the nodes and works even when the movement of seeds and nodes is uncontrollable. The proposed method is based on aDistance/ Angle- Estimation technique that does not increase the complexity or cost of construction of the localization sensor nodes. It determines how the available information will be manipulated to enable all of the nodes of the WSN to estimate their positions. It is a distributed and usually multi-hop algorith