A PRACTICAL APPROACH: NODE LOCALISATION ESTIMATION BASED ON RSSI FOR DISASTER CASES

Abstract

An optimisation in localisation estimation is proposed based on received signal strength indicator (RSSI) measurements with a wireless mesh network (WMN) for urban environment. A mean deviation of 4.73 % between measured and real distances was achieved. The WMN is based on ZigBee nodes for the usage in disaster scenarios without any infrastructure. The WMN is build up for basic navigation, internet of things (IoT) integration and sensor communication. Only six wireless mesh nodes are deployed under urban conditions and cover an area of 7.4 hectare. Noise cancelling is accomplished by an alpha-beta filter.