Research On Confident Information Coverage Hole Heal Strategy In Mobile Wireless Sensor Network By Redundant Node Relocation Algorithm

Coverage is one of the most important metrics for measuring the performance of Wireless Sensor Networks(WSN),and characterizes the extent to which an area is sensed,also is critical to the successful deployment of a wireless sensor network.Covering a hole refers to a situation in the WSN that does not cover the sensor node due to an uneven distribution of sensor nodes or sensors due to insufficient or damaged sensor energy.With the wide application of WSN in many fields such as industrial inspection,fine agriculture and environmental monitoring,the coverage of the void has become the most important part of WSN research.The repair of coverage holes in WSN is particularly important.For the repair problem of coverage holes in WSN,firstly,we need to select the appropriate sensor node coverage model according to the actual application,and then design the corresponding hole detection algorithm according to the selected coverage model to obtain the hole information in WSN,including position,size and number.Efficient hole repairalgorithm repairs coverage holes and guarantees WSN coverage quality.This paper focuses on the problem of hole coverage repair in the area of Mobile Wileless Sensor Networks(MSN).Most of the current research on coverage hole repair in MSN is based on an oversimplified and idealized disk model and its derived model.Such research cannot accurately reflect the space between the sensor node's sensing function and the sensed environment variable.Correlation,and the problem of patching coverage holes is not considered from the perspective of cooperative sensing between sensor nodes.In order to overcome the defects of the disc model and its derived model,this paper adopts a new sensor node coverage model--a new information coverage model(CIC),and then detects the relevant information of CIC coverage holes according to the relevant algorithm.An efficient and feasible distributed CIC coverage hole repair redundant node relocation algorithm is designed to improve and optimize the coverage quality of the full mobile wireless sensor network and extend the network working life of the full mobile wireless sensor network.In this paper,the simulation of the distributed coverage hole repair redundant node relocation algorithm is carried out.The experimental results show that the proposed algorithm can repair the trusted information coverage hole and ensure the network coverage while maximizing the minimum residual energy,or the sensor node.Mobileenergy consumption is minimal.That is to say,the coverage hole repair relocation algorithm proposed in this paper can meet the coverage requirements and can maximize the working life of the full mobile wireless sensor network.