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Node localization is one of main support technologies for wireless sensor networks, and the location information of sensor nodes plays a key role in many application areas of wireless sensor networks. The positioning is the basis of tracking where target tracking is a fundamental application of wireless sensor network. The nature of target tracking is multi-node cooperation, and the core issue of...
In recent days the advancement in the wireless communication is with that of wireless sensor networks. In Wireless Sensor Networks (WSNs) the data are collected from many sensor nodes by the base station which is the goal of the network. In this type of WSNs, the major constraints are low energy, limited bandwidth and less memory. With these constraints in mind we propose a method to reduce the energy...
In a Wireless Sensor Network (WSN), battery power is a limited resource on the sensor nodes. Hence, the amount of power consumption by the nodes determines the node and network lifetime. This in turn has an impact on the connectivity and coverage of the network. One way to reduce power consumed is to use a special Mobile Data Collector (MDC) for data gathering, instead of multi-hop data transmission...
Deterministic deployment of distributed sensor networks (DSNs) is sometimes impractical in situations where a global map of the environment is either unavailable or of little use because the environment is dynamic or hostile. One way to deal with such situations is to randomly scatter sensor nodes in the area of interest. However, the deployment carried out in such a way is generally far from optimal...
This paper proposes a robot-deployment algorithm that overcomes unpredicted obstacles and employs full-coverage deployment with a minimal number of sensor nodes. Without the location information, node placement and spiral movement policies are proposed for the robot to deploy sensors efficiently to achieve power conservation and full coverage, while an obstacle surrounding movement policy is proposed...
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