Abstract
Sensing coverage and energy consumption are two primary issues in wireless sensor networks. Sensing coverage is closely related to network energy consumption. The performance of a sensor network depends to a large extent on the sensing coverage, and its lifetime is determined by its energy consumption. In this paper, an energy-efficient Area Coverage protocol for Heterogeneous Energy sensor networks (ACHE) is proposed. ACHE can achieve a good performance in terms of sensing area coverage, lifetime by minimizing energy consumption for control overhead, and balancing the energy load among all nodes. Adopting the hierarchical clustering idea, ACHE selects the active nodes based on the average residual energy of neighboring nodes and its own residual energy parameters. Our simulation demonstrates that ACHE not only provide the high quality of sensing coverage, but also has the good performance in the energy efficiency. In addition, ACHE can better adapt the applications with the great heterogeneous energy capacities in the sensor networks, as well as effectively reduce the control overhead.
Highlights
Wireless sensor networks (WSNs) consist of tiny, lowcost, low-power tiny sensors that can communicate with each other to perform sensing and data processing cooperatively
ACHE can better adapt the applications with the great heterogeneous energy capacities in the sensor networks, as well as effectively reduce the control overhead
Different from DELIC [3], adopting the hierarchical clustering idea, ACHE elects the working nodes based on the average residual energy of neighboring nodes and its own residual energy parameters
Summary
Wireless sensor networks (WSNs) consist of tiny, lowcost, low-power tiny sensors that can communicate with each other to perform sensing and data processing cooperatively. In order to prolong the lifetime of a WSN, an effective coverage control protocol should be have the following features. 2) The working nodes should be well-distributed over the monitored field in order to balance the energy load among the sensors. 3) It should have low control overhead for coverage protocol, which can long the network lifetime. In environment monitoring, some nodes are active and some are sleep To meet the above requirements, an energy-efficient location-independent area coverage protocol for heterogeneous energy sensor networks (ACHE) is proposed. Simulation study demonstrates that ACHE can better adapt the application with the heterogeneous energy capacities and effectively reduce the control overhead.
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