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Lifetime Extension of Underwater Wireless Sensor Network using Multiple-AUVs
Syed Murtaza Rizvi,Ho-Shin Cho 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.2
This paper aims to increase the lifetime of an underwater wireless sensor network (UWSN) by maintaining a uniform energy distribution among the network nodes. This is achieved by employing multiple Autonomous Underwater Vehicles (AUV) that traverse the network in elliptical trajectories. Furthermore, the axis of the trajectories are rotated to mitigate the effect of the hot region problem, where the sensor nodes near the trajectory suffer severe energy depletion due to consistent relaying of data of the distant nodes to the AUV. Index Terms—Energy hole problem, AUV, data gathering, underwater wireless sensor networks