Localization of Sensor Nodes in Underwater Acoustic Sensor Networks Using Two Reference Points

Abstract

Underwater acoustic sensor networks (UWASN) is being actively researched for its broad spectrum of potential applications. Particularly, submarine or whale tracking can be greatly leveraged by UWASN. These applications require the positions of sensor nodes are determined a priori, but node mobility inherent to underwater environments makes it difficult to employ existing localization methods. In this paper, we propose a novel localization scheme that minimizes the influence of node mobility. We evaluate our method analytically, and show that it performs robustly in various network settings and environment.

Multihops Fitting Approach for Node Localization in Underwater Wireless Sensor Networks

“…However, the radio wave underwater can propagate a very short distance, and the fact makes the existing terrestrial localization algorithms be not suitable for UWSNs. In UWSNs, sensor nodes communicate with each other by acoustic channels because sound is the only available medium for long distance transmission underwater [11][12][13]. In this section, we will briefly review some localization algorithms for UWSNs.…”

A multi-hop localization algorithm in underwater wireless sensor networks

“…But the radio wave underwater propagate a very short distance which make the classic terrestrial localization algorithm unfit for UWSNs. In UWSN, sensor nodes communicate with each other by acoustic channels because sound is the only form of energy for long distance transmission in water medium [9], [10], [11]. In this section, we briefly review some typical approaches for coordinates estimation.…”

LDSN: Localization scheme for double-head maritime Sensor Networks

“…Range-based schemes first measure or estimate distances or angles between nodes using Time of Arrival (TOA), Time Difference of Arrival (TDOA), [12]. Then the schemes apply triangulation or multilateration to compute node's positions.…”