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논문 기본 정보

저자정보
(Chadwick International) (부산대학교)
저널정보
한국디지털정책학회 디지털융복합연구 디지털융복합연구 제24권 제1호
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    초록·키워드

    Localization in Underwater Wireless Sensor Networks(UWSNs) faces significant challenges due to signal attenuation affecting standard RF and GPS methods, alongside severe energy and geometric constraints in acoustic environments. To address these challenges, this paper proposes a distributed cooperative localization algorithm tailored for UWSNs using Time of Arrival(ToA) acoustic ranging. A key innovation is the explicit inclusion of a Geometric Dilution of Precision(GDoP)-based re-selection mechanism, which ensures robust positioning by mitigating geometric errors often ignored by traditional methods. Through an iterative process, localized nodes serve as new references, progressively expanding network coverage. Simulation results demonstrate that performance relies on balancing communication range and node density, while energy analysis reveals approximately a 30% reduction in consumption compared to centralized approaches through short-range transmission. Consequently, this study presents a robust, scalable, and cost-effective solution for resource-constrained underwater deployments.

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