Research On Signal Reconstruction And Data Transmission Reliability Of Wireless Sensor Network

The wireless sensor network is very convenient and flexible when set up,and has a wide range of applications,therefore,it has received widespread attention in recent years.In the wireless sensor network,reconstructing the signal and reliably transmitting the data to the receiving node in the network is the key to ensure the successful transmission of the data.This requirement determines how to completely reconstruct the original signal of the data after sampling and compression in the network,and how to completely transmit the data to the receiving node.However,in practical applications,the wireless sensor network will be affected by many factors,such as weather,noise,and its own hardware resources.This leads to low signal reconstruction efficiency in the wireless sensor network and poor reliability of data in the transmission process.Based on the problem of low signal reconstruction efficiency in wireless sensor networks,this paper proposes a new algorithm.By combining the preselection strategy with the sparsity adaptive principle,the accuracy of the screening results of the atoms in the selection phase is improved,and the selection of atoms is refined on the basis of traditional algorithms.The new algorithm makes the final selected signal closer to the original signal,and the signal reconstruction rate can be improved.The simulation verification of the new algorithm found that the size of the reconstructed signal perceptual matrix and the length of the signal respectively are M=128,N=256 and M=128,N=512,compared with the Segmented Orthogonal Matching Pursuit(StOMP)algorithm,the Orthogonal Matching Pursuit(OMP)algorithm and the Regularized Orthogonal Matching Pursuit(ROMP)algorithm is improved in accuracy,in preparation for the following data transmission.For the problem of low data reliability,this article proposes to improve the multipath routing algorithm by combining the erasure coding fault-tolerant machine with the remaining energy sorting selection of the node.First,the erasure coding fault-tolerant machine allows a certain number of data pieces to be lost during the transmission process.To ensure the accuracy of receiving data packets.During the entire transmission process,the remaining energy of the nodes is sorted and selected to analyze and compare the energy consumption of the nodes.By calculating and analyzing the energy remaining value of neighbor nodes,the next hop node corresponding to the destination node is determined,so as to save node energy and improve the reliability of data transmission.