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P-detection CSMA Random Access Multiple Access Arotocol With Monitoring Function Based On Isolated Binary Tree Collision Resolution And Its Energy Effciency Analysis

Posted on:2018-08-03Degree:MasterType:Thesis
Country:ChinaCandidate:M L YuFull Text:PDF
GTID:2428330518458895Subject:Electronics and Communications Engineering
Abstract/Summary:PDF Full Text Request
Social development to today,communication technology as the pillars of the information age is progressing,communication network in people's lives has reached an indispensable point.Whether it is military applications,industrial production or home life,communication networks are playing the most basic and most important supporting role.Among them,the wireless sensor network combines a variety of technologies,by virtue of low power consumption,low cost,self-organization and other characteristics and advantages in many areas of application,is an important area of information technology.The random access control protocol is one of the most important links in the communication network.It is of great significance to study the random access control protocol in wireless sensor networks.However,the basic ALOHA protocol and various types of CSMA technology,information packets in the transmission process of the collision will inevitably occur.Therefore,it is of great significance to find a good conflict resolution algorithm.Through the study of many scholars and scholars,the binary tree conflict resolution algorithm is a more mature and mature theory.It has high retransmission efficiency and has a significant effect on increasing the probability of successful transmission of collision packets and increasing channel utilization.In addition,on this basis to join the monitoring function,will greatly enhance the quality of communication.Based on the deep study of CSMA technology and binary tree decomposition technology,this paper combines the essence of the two ideas,designed the isolation of the binary tree with ACK P detection CSMA protocol.The working mechanism of the new protocol is that the node first listens on the channel according to the method of detecting CSMA and sends the information packet.The difference is that after the collision of information packets,the isolated binary tree decomposition technique is used to retransmit the collapsed packet data,and the other nodes listen to the channel according to the rules of non-persistence CSMA technology during the data retransmission.After the packet to be collapsed is successfully retransmitted,the channel enters the idle state.After the model of the control protocol is established,the average cycle method is used to analyze the new protocol and the mathematical formula is deduced,and the mathematical expression of the throughput of the CSMA access control protocol is obtained by the P detection of the isolated binary tree.In order to study the energy consumption of the new protocol,this paper further analyzes the energy efficiency of the new protocol and compares it with the P-detection CSMA control protocol.Finally,the correctness of the theoretical derivation is verified by MATLAB simulation,and the throughput of the new protocol is improved when the system load is heavy.Furthermore,it is feasible in terms of energy.Thus,the superiority of the new protocol is proved.
Keywords/Search Tags:Wireless sensor network, P-detection CSMA, Monitoring function, Binary tree, Energy effectiveness analysis
PDF Full Text Request
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