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Wireless sensor network routing algorithm based on energy strategy

Author: ZhaoJunFeng
Tutor: LiJianPing
School: University of Electronic Science and Technology
Course: Information and Communication Engineering
Keywords: Wireless sensor networks Routing Protocol Clustering algorithm Logical identifier EBRA
CLC: TP212.9
Type: Master's thesis
Year: 2009
Downloads: 144
Quote: 1
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Abstract


The wireless sensor network is a new information acquisition and processing technology has broad application prospects. Typically, wireless sensor network consists of a large number of low-cost, low-power, with sensing, data processing, storage, and wireless communication capabilities of micro-sensor nodes formed by the self-organizing network. Wireless sensor nodes as a tiny device, usually can only be equipped with battery-powered. This makes the life of the sensor nodes largely dependent on the battery life, how to reduce node energy consumption and prolong the network life cycle is to consider the important issues in the wireless sensor network design. In this paper, algorithms and energy efficient routing for wireless sensor network node clusters conducted in-depth research. The main contents and results are as follows: (1) the structure of the two-level cluster selection algorithm, centralized clusters selection algorithm and distributed clustering selection algorithm. In concentrated clusters selection algorithm, the concept of a node in the logical identifier. Sink node involved in the management, sensor nodes the respective logical identifier, the cluster head position and the size of the cluster radius, after the interaction of messages between nodes to complete the cluster organizations. Distributed clustering selection algorithm, the residual energy of the nodes and the node is not clustered around the number of nodes will affect the rights of each competition to become the cluster head. With more residual energy and number of neighbors is not clustered node priority competitive cluster head, organizing clusters. This integrated node energy and network connectivity competitive strategy to meet network coverage, can effectively reduce the number of clusters in the network. (2) the two clusters selection algorithm based on the use of cluster head node, multi-hop communication based wireless sensor network routing algorithm for energy policy (Energy Based on Routing Algorithm for Wireless Sensor Networks, EBRA ), from route establishment, data transmission to the entire process of routing maintenance. When data needs to be sent to the Sink node cluster head node, the node according to the routing table, select the communication energy consumption minimal routing node data transfer. In the same time, the algorithm is given a modified request-response type data transfer mode flag is sent continuously, by increasing the data, and enhance the data transfer performance and response capability of the burst data. (3) for the network simulation tool NS2 (2.28), respectively, based on two clustering algorithms routing protocol emulation program. Routing protocol simulation experiments in different test scenarios, and comparative analysis of LEACH simulation results. The simulation results show the proposed routing algorithm can effectively save network energy consumption, extend the network life cycle, improve network throughput capacity, better data transmission performance.

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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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