Research on reliable coverage algorithm based on grid trust value for wireless sensor networks.

To solve the problem that nodes can easily suffer from various attacks during the process of coverage optimization, this paper discussed reliable coverage technology on the basis of the trust management system framework, and proposed a reliable coverage algorithm based on grid trust value. The algorithm performed the reliability screening and rotation scheduling on nodes, and the coverage based on the credibility of grid point by the way of parallel coverage. After discussing the value of the trust threshold, the paper found that it had a significant influence on the security of whole coverage area and the coverage quality. By comparing the new algorithm with traditional single coverage algorithms, the algorithm can improve the security and network lifetime effectively. Simulation experiments show the effectiveness of this algorithm and reflect the correctness of the analysis. [ABSTRACT FROM AUTHOR]