3D Localization and Error Minimization in Underwater Sensor Networks
Küçük Resim Yok
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Assoc Computing Machinery
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Wireless sensor networks (WSNs) consist of nodes distributed in the region of interest (ROI) that forward collected data to the sink. The node's location plays a vital role in data forwarding to enhance network efficiency by reducing the packet drop rate and energy consumption. WSN scenarios, such as tracking, smart cities, and agriculture applications, require location details to accomplish the objective. Assuming a 3D application space, a combination of received signal strength (RSS) and time of arrival (TOA) can be helpful for reliable range estimation of nodes. Notably, the anchor node can minimize localization error for non-line-of-sight (NLOS) signals. We proposed an error minimization protocol for localization of the sensor node, assuming that the anchor node's location is known prior and can limit the receiving signal in LOS, single, or twice reflection. We start to exploit the sensor node's geometrical relationship and the anchor node for LOS and NLOS signals and address misclassification. We started initially from the erroneous node position, bound its volume in 3D space, and reduced volume with each iteration following the constraint. Our simulation result outperforms the traditional methods on many occasions, such as boundary volume and computational complexity.
Açıklama
Anahtar Kelimeler
3D Localization, Sensor Network, Anchor Node, Line Of Sight, Dv-Hop, Algorithm
Kaynak
Acm Transactions On Sensor Networks
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
18
Sayı
3
