Research And Design Of Low Power Layering Technology For Wireless Sensor Networks

Wireless sensor network is an important tool for information acquisition,analysis and processing in people's daily life.Improving the lifetime and energy efficiency of the network is a key problem that the sensor network needs to solve.Using the sensor network layering technology can effectively reduce the overall energy consumption and upgrade of the network.The life cycle,in which the clustering method and inter-cluster transmission are important research directions of the current layering technology.At present,clustering methods and inter-cluster transmission research still face severe challenges,such as energy constraints,topology changes,limited hardware resources,and complex environments.These factors must be fully considered to ensure clustering methods and inter-cluster transmission.high efficiency.This thesis investigates the current main clustering methods and inter-cluster transmission strategies,analyzes their design principles and architecture,and conducts research and design on clustering methods and inter-cluster transmission technologies based on the current research status.The main work and innovations of this thesis are as follows:In this thesis,The problems faced by the current clustering method in energy heterogeneous wireless sensor network application scenarios are studied in depth.The network topology model,energy consumption model and optimal cluster head number analysis of sensor network clustering method are combined with the current research status.A low power clustering method.The method is based on reducing node energy consumption and extending network life cycle and load balancing.Considering the remaining energy of the node,the speed of energy consumption,the energy hot zone problem and fairness when selecting the cluster head,the method can make the network more reasonable.The cluster head is selected and the corresponding scheme flow chart is designed.It is verified that the method can better meet the energy consumption requirement of the energy heterogeneous sensor network.In the research of inter-cluster transmission,this thesis firstly makes theoretical analysis on the mode of inter-cluster transmission and energy consumption,and designs an improved inter-cluster multi-hop transmission strategy based on genetic algorithm to reduce the energy consumption of the network on the transmission path and prolong the life cycle of the network for the scenario where the sensor network is far away from Sink.In the case of a large number of nodes,the method of combining region with cluster transmission is proposed,which increases the scalability and robustness of the proposed strategy.In this thesis,the feasibility of the improved method is analyzed from different perspectives in simulated sensor network scenarios.At the same time,the improved method V-SEP is simulated and experimented with the current methods P-SEP and SEP.The simulation results show that the improved method improves the stability cycle of the network by 5%compared with P-SEP method and the survivability of nodes by 13%,which verifies the rationality of the proposed scheme.And reliability.