Abstract
The structure of network topology in heterogeneous sensor networks changes fast. As a result, the coverage and control ability of sensor nodes will be undermined. In order that we can address this problem, we propose an event-driven mechanism coverage algorithm based on Sensing-cloud-computing in heterogeneous sensor networks (EMC-SC). First, the network coverage model is utilized to compute the boundary relationship between the dual square and the sensor nodes coverage area. Then, the Poisson distribution model is employed to analyze the coverage performance of the randomly deployed sensor nodes and further compute the probability of the coverage which is effective over the monitoring area. Next, the node state mechanism scheduling algorithm is determined according to the amount of exchanged information between the neighbor nodes and the sensor nodes as well as the remaining sensor nodes energy. Finally, the results of the simulation show that, if it is compared with other algorithms which exist, the EMC-SC algorithm which is proposed could improve the network lifetime and the network coverage rate by 12.73% and 16.22%, respectively. Therefore, the effectiveness of the proposed algorithm and the validity of the proposed algorithm are verified.
Highlights
The wireless sensor network (WSN) is a type that is new of large-scale self-organized sensor network, which is widely employed in a range which is wide of industry areas [1]–[3]
Complete coverage refers to the method where the network composed by the deployed sensor nodes could sense an arbitrary point in the monitoring area
The research on complete coverage is mainly in view of the nodes’ location information, and the complete coverage is achieved by computing the network topology
Summary
The wireless sensor network (WSN) is a type that is new of large-scale self-organized sensor network, which is widely employed in a range which is wide of industry areas [1]–[3]. Complete coverage refers to the method where the network composed by the deployed sensor nodes could sense an arbitrary point in the monitoring area. Z. Sun et al.: Event-Driven Mechanism Coverage Algorithm Based on Sensing-Cloud-Computing in Sensor Networks refers to the method where only a part or a group of points can be covered by the network nodes. The complete coverage and the point coverage methods are mainly employed for the sensing and gathering of the environment information in the monitoring area. In order to address the problems above, we propose an Event-driven Mechanism Coverage Algorithm based on Sensing-cloud -computing in Heterogeneous Sensor Networks (EMC-SC) This algorithm first computes the membership among different nodes to determine the joint node coverage association model. The results of the simulation show that the EMCSC algorithm which is proposed could improve the coverage rate of the network and the network lifetime, which verifies the effectiveness and the validity of the algorithm which is proposed
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