The Study of RSSI in Wireless Sensor Networks

Localization estimation of sensor node is a key component in many sensor networks’ applications. Correct localization is required for WSN applications, but it is often expensive to include GPS adapters in each sensor node. The RSSI ranged-based localization algorithm is a simple and cost effective localization technology that relies on measuring the Receive Signal Strength Indicator(RSSI) for distance estimation. In this paper, we present experimental results that are carried out to analyze the RSSI model parameter. The least-square linear has been to determine the RSSI model parameter. The results of this study reveal the feasibility and accuracy of RSSI measurement. Keyword-wireless sensor network; RSSI model; distance estimation; node