期刊
IEEE SENSORS JOURNAL
卷 22, 期 4, 页码 3766-3776出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2021.3140138
关键词
Sensors; Sensor fusion; Energy consumption; Collaboration; Wireless sensor networks; Intrusion detection; Soft sensors; Underwater sensor network; barrier coverage; information fusion; coverage graph
资金
- National Natural Science Foundation of China [62031021, 62001360]
In this paper, a high-energy-efficient barrier coverage strategy based on nodes alliance is proposed for intrusion detection in underwater sensor networks. By optimizing the virtual sensor quantity, this strategy achieves high detection probability and low energy consumption simultaneously.
The barrier coverage problem is generally considered for intrusion detection in underwater sensor networks (UWSNs). In conventional barrier coverage strategies in UWSNs, there is no cooperation between sensors. The information fusion is used to construct barrier coverage for higher detection probability by enhancing the sensor's interaction capability. However, more energy is consumed for information fusion, which will shorten network lifetime. In this paper a novel high-energy-efficient barrier coverage based on nodes alliance is proposed. Based on the UWSN's detection mode and energy consumption mode adopting nodes alliance, the relationship between the number of virtual sensors and the energy consumption is discovered. Based on this relationship, the problem of high energy efficiency is transformed into an optimization problem. By solving the optimization problem, the optimal number of physical sensors forming virtual sensors is achieved. Based on the optimal number, high detection probability and low energy consumption are taken into account simultaneously to construct barrier coverage. Both analytical and simulation studies demonstrate that the proposed strategy can provide high-energy-efficient barrier coverage.
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