Akademik Veri Yönetim Sistemi
Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi, cilt.25, sa.75, ss.647-658, 2023 (Hakemli Dergi)
Wireless sensor networks (WSNs) consist of multiple sensor nodes connected via wireless infrastructures, such as Wi-Fi, Bluetooth, ZigBee, and WiMAX. Determining the relative or absolute positions of these nodes is crucial for various applications. In this study, an improved method for estimating the position of WSN nodes is presented that combines the estimation results of the Received Signal Strength Indicator (RSSI) and Time of Arrival (ToA) metrics from the preferred wireless communication infrastructure. Results of the position estimation are compared based on both measurements and distance between the nodes. The proposed method uses position estimations based on both RSSI and ToA metrics, but the result of a single method is favored depending on the distance between nodes, with RSSI being superior for short distances and ToA for farther distances. The results demonstrate that the proposed combined method reduce estimate errors and perform better than either method alone.