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The Research For The Least Energy Cost Optimization Algorithm Based On The Leach Protocol

Posted on:2015-07-17Degree:MasterType:Thesis
Country:ChinaCandidate:Z L XiaFull Text:PDF
GTID:2298330452457597Subject:Computer application technology
Abstract/Summary:PDF Full Text Request
Wireless sensor networks (WSNs: Wireless Sensor Networks) combined withsensor techno1ogy, computer network techno1ogy, wire1ess communicationtechno1ogy and embedded systems techno1ogy, such a network in support of sensortechnology enables real-time under the perception, or collect, or to detect thesurroundings Some of the information against the object and its implementation andother related treatment or control. These systems are different from other uniquecharacteristics of wireless sensor networks and predictable wide range ofapplications, has gained business, industry, academia and other industry attention,has been widely used in commercial, military medical aspects of health andenvironmental monitoring and control, etc., known as one of the technologies will beconsidered a huge influence century.This paper first introduces the research background and significance of wirelesssensor networks, a detailed analysis of the structure, system characteristics of such anetwork system and its differences with other traditional networks and contacts. Dueto the practical application of wireless sensor networks usually use a lot of intensiveand widespread sensor nodes, and the energy of this node, computing resources andcommunications capabilities are very limited, so the traditional wireless routingprotocol can not meet the needs of wireless sensor networks so how to extend thenetwork lifetime has important theoretical and practical significance for wirelesssensor networks, which is an important aspect of this sensor network research is tostudy how to achieve high-efficiency low-power routing protocol algorithm.Therefore, this paper focuses on the wireless sensor network routing algorithm, anddetailed analysis of one of the typical and representative of some of the routingprotocol.Based on the analysis of current existing common routing protocol algorithmbased on LEACH routing protocol focuses on the, and after absorbing ideas LEACHrouting protocol algorithm is proposed based on LEACH routing protocol improvedalgorithm: Minimum energy consumption algorithm. Minimum energy consumptionthrough the cluster algorithm to analyze the energy consumption of each round ofjudging and irrational consumption clusters reasonable guide, so that the energyconsumption of the cluster to achieve an optimal energy consumption value,prompting the network tends to minimize energy consumption, so as to achieve thepurpose of extending the life cycle of the entire network. Through theoreticalanalysis and MATLAB simulation results show that the minimum energyconsumption compared to conventional LEACH protocol algorithm effectively saveenergy nodes to extend the network life cycle. Finally, the paper also analyzes the shortcomings of the algorithm, pointing outthe need for further questions and direction of research.
Keywords/Search Tags:wireless sensor network, LEACH, routing protocol, energy
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