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Mobile sensors are a viable choice for providing monitoring service on a set of Points of Interest (PoIs) in a large sensing field. In some applications, each PoI should be covered periodically (sweep coverage), and the collected data should be delivered to the sink node timely (timely transmission), namely both the sensing and transmission delay constraints for each PoI should be satisfied, which...
Security plays an important role in the ability to deploy and retrieve trustworthy data for a wireless sensor network. Secure coverage is an effective defense against attacks which take advantage of a lack of deployment information. In this work, on the basis of improved genetic algorithm, a novel algorithm is proposed to guarantee the effect of secure surveillance. Comparison and simulation results...
The recent advances in radio and embedded system technologies have enabled the proliferation of wireless microsensor networks. Such wirelessly connected sensors are released in many diverse environments to perform various monitoring tasks. The effectiveness of these networks is determined to a large extent by the coverage provided by the sensor deployment. The positioning of sensors affect coverage,...
Wireless sensor networks (WSNs) is always consist of stationary and mobile sensor nodes, sensor node deployment is one of the key topics addressed in the researches of WSNs, traditional virtual force (VF) algorithm is presented. This paper proposes a method of improved particle swarm optimization to solve the problem. The simulation results show that the improved particle swarm optimization has better...
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