Research And Implementation Of The Network Management Protocol For Miniaturized Spectrum Monitoring Wireless Sensor Network

In recent years,wireless communication technology has entered a period of high-speed development,followed by electromagnetic wave spectrum resources are increasingly scarce.Wireless sensor network can collect,process and forward signals,and has powerful data management function.Wireless sensor network is characterized by large-scale,diverse networking methods,easy to deploy and so on,with a wide range of application scenarios.When a network node needs to be deployed in an environment where the traditional network cannot be used,it needs to choose an appropriate networking mode to build a wireless sensor network.In order to make better use of,control and manage the data information in the network,and optimize the transmission of network information,we need to use efficient network management technology.Using the appropriate network management protocol can help users to monitor the state of the network in real time and effectively,and help to improve the reliability,security and efficiency of the network operation.In the case that people can not directly contact the wireless sensor network node equipment,it is particularly important to use the appropriate network management protocol to effectively manage the wireless sensor network.Wireless sensor networks are usually powered by batteries.Because the energy of batteries is fixed,in order to save power,increase the life cycle of the network,and improve the routing efficiency of the network,building a reasonable network topology control structure is a key link of wireless sensor networks,and it is also the basis of the Research of wireless sensor network management protocol,while the network management protocol is none The information transmission and routing of wire sensor network provide important technical support.This thesis is based on the laboratory "13th five year plan" pre research project "XXX technology research" for analysis and research.Its application scenario is to drop several network nodes in the sparsely populated area through the aircraft,establish a wireless sensor network,based on the wireless sensor network,carry out the spectrum monitoring of the signal,and finally upload the detection data to the manager.The m work and innovation of this thesis are as follows:First of all,the structure and characteristics of wireless sensor network are described,the content of its network management is discussed,the different types of wireless sensor network management architecture are analyzed,and the relevant protocols and algorithms are studied.Secondly,the working principle of miniaturized spectrum monitoring wireless sensor network is analyzed in detail,the requirements of its network management are discussed,the main content of its network management is explained,and the sensor node protocol stack of the network is proposed.Then,according to the analysis of the miniaturized spectrum monitoring wireless sensor network management protocol,a convergence node selection algorithm based on network topology and energy consumption is studied.In the calculation of multi-point relay nodes(MPR nodes),the connectivity,accessibility and other factors between nodes are considered.The nodes can send data to all two hop neighbor nodes through MPR nodes to ensure that all two hop neighbor nodes are covered.In addition,the energy consumption of nodes is considered in the MPR selection mechanism.According to the energy model,the remaining nodes are eliminated in the selection of convergence nodes with low energy.In this thesis,the processing of topology control packet,the establishment,update and maintenance of routing table are also studied.The aggregation node algorithm considers the related neighbor nodes in the network topology,and then refers to the residual energy of the nodes,and finally selects the aggregation node from multiple relay nodes.The aggregation node selection algorithm is related to the topology control and energy management in the network management of the miniaturized spectrum monitoring wireless sensor network.This algorithm provides strong support for improving the network model.Next,based on the OPNET three-layer modeling method,this thesis studies the hierarchical model of wireless sensor network,discusses and analyzes the modeling method of miniaturized spectrum monitoring wireless sensor network,designs the model structure of its sensor nodes,and models the modules in the nodes.In the network layer,the convergence point selection algorithm proposed in this thesis is used to extend the network lifetime.And in the MAC layer,the convergence point selection algorithm is used for MPR selection Multi channel technology is adopted to reduce the delay.Finally,the miniaturized wireless sensor network model of spectrum monitoring is simulated,and the performance of the network is analyzed.The proposed algorithm and several different protocols are compared and simulated,and the impact on the network performance is analyzed from many angles.The simulation results show that the improved network management protocol has better power consumption optimization and longer lifetime than other protocols.