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Low-complex energy-efficient localisation algorithm for wireless sensor networks using directional antenna

Low-complex energy-efficient localisation algorithm for wireless sensor networks using directional antenna

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The accuracy in location estimation of ad hoc deployed sensor nodes for a wireless sensor network in the presence of noisy environment and obstacle is discussed. Considering estimation accuracy, energy efficiency and range independency, the authors propose a localisation scheme using a mobile anchor node equipped with a directional antenna. Without increasing hardware and computational complexity, sensor nodes estimate their positions using the minimum number of beacon points. Each sensor node estimates its location based on the intersection point of the greatest gain direction of directional antenna. The proposed localisation scheme is verified using OPNET simulation software. The simulation results show that the proposed scheme has higher accuracy and energy efficiency than other localisation schemes.

Inspec keywords: directive antennas; mobile computing; wireless sensor networks; wireless mesh networks

Other keywords: low-complex energy-efficient localisation algorithm; wireless sensor networks; ad hoc deployed sensor nodes; location estimation; directional antenna

Subjects: Wireless sensor networks; Single antennas; Mobile radio systems

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