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Research on Topology Control of Wireless Sensor Networks

Author: ChenLiDong
Tutor: WangSuoPing
School: Nanjing University of Posts and Telecommunications
Course: Applied Computer Technology
Keywords: Wireless sensor networks Topology control Power Control Clustering Drivers of change report
CLC: TP212.9
Type: Master's thesis
Year: 2012
Downloads: 50
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Abstract


Wireless sensor network (Wireless Sensor Network, WSN) low-power , low-cost , making it the characteristics of self - organization and distributed access to information technology makes wireless sensor networks , however, resource-constrained facing huge challenges . Reduce energy consumption , extend network life cycle is an important research direction in the field of wireless sensor networks . Topology control as a wireless sensor network to reduce energy consumption , extend network life cycle technology research in the field of wireless sensor networks in recent years become a hot and difficult one . Existing topology control algorithms are mainly concentrated in the node power control and hierarchical clustering topology control two aspects . Thesis topology control algorithm for clustering in-depth study , the typical clustering topology control algorithm -LEACH algorithm made ??an in-depth analysis and research , to point out the deficiencies in the LEACH algorithm . Then , for the deficiencies LEACH algorithm proposed algorithm of the CDR-I-LEACH . CDR-I-LEACH algorithm from the cluster head of cluster formation and stabilization phase data acquisition and transmission three the LEACH algorithm improvements . Considering the election of the cluster head node residual energy , and the distance between the average distance of the node's neighbors as well as nodes and Sink node three factors ; formation of clusters considering the size of the cluster and non - cluster head node and cluster head node the distance ; node using the change in the stable phase of data collection and transmission of information -driven reporting mechanism , the communication between the cluster head Sink node multi- hop routing . Simulation results show that CDR -I - LEACH algorithm in the distribution of cluster head , the survival nodes as well as the overall network energy consumption the LEACH algorithm are better than the original , CDR-I-LEACH algorithm to reduce the energy consumption and prolong the network life cycle .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Sensor applications
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