Coverage Quality Optimization Strategy for Static Heterogeneous Wireless Sensor Networks

The coverage quality of static heterogeneous wireless sensor networks is a very important issue in wireless sensor networks and a hot topic of current research. Under the circumstance that the network coverage is unchanged or slightly lost, we can save the total energy consumption of the network by reducing the overlapping coverage area between nodes. The node also starts with the localization method, and obtains the set of overlay intersections by analyzing the information such as the location of the neighbor of one-hop communication, and then obtains the optimal size of the node perception radius by analyzing the set. In view of the one-to-one and one-to-many relationships between nodes and neighbors, node dormancy strategies based on node spacing and segmental arc are proposed respectively. In this paper, the algorithm execution order among neighbor nodes is analyzed, and the concept of execution priority is defined. The node executing algorithm each time is the node with the highest execution priority in the communication range. The algorithm is feasible and has some advantages in reducing the efficiency of network redundancy.