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Wireless sensor network routing protocol research and improvement

Author: YuanZhaoLan
Tutor: WangPeiDong
School: Harbin University of Science and Technology
Course: Applied Computer Technology
Keywords: Wireless sensor networks Adaptive Data Fusion LEACH Network lifetime
CLC: TP212.9
Type: Master's thesis
Year: 2011
Downloads: 44
Quote: 1
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Abstract


Wireless sensor networks are in a variety of application needs to be shipped under a new generation of technology, because it enables people to live and work a fundamental change, it is considered the most influential of the century new technologies. Wireless communication technology, sensor technology, embedded computing technology, distributed information processing technology is a cornerstone of wireless sensor networks produce. Wireless sensor network technology is widely used in military, medical care, disaster prevention, home life and other areas, with a high research value and application value. This paper describes the definition of wireless sensor networks, compared with the traditional network characteristics, application scope and status of domestic and foreign research, elaborated the structural composition of wireless sensor networks, protocol stacks and evaluate the merits of the wireless sensor network performance standards, Introduced a wireless sensor network routing protocol because of the particular characteristics of the application environment brought analyzed and compared for different application environments study design has several advantages on behalf of routing protocols and problems; By analyzing the advantages and disadvantages with LEACH and the advantages of adaptive data fusion, we propose a new routing protocol - data fusion based on adaptive routing protocol LEACH (AF-LEACH). LEACH protocol does not take into account data collected between nodes associated redundancy, regardless of the correlation between the data big or small, data fusion, but this may be an additional one fusion energy consumption, reduce the limited energy of sensor nodes. In this paper, data fusion relevant knowledge and adaptive data integration advantages, will introduce the concept of adaptive data fusion to clustering based routing protocol, considering the energy consumption of data transmission and data fusion own energy consumption, so that perception data along low energy consumption, the route of migration, the data collected for each node adaptive data fusion, reducing the energy consumption of the network, the sensor network can efficiently utilize the limited energy resources, to the wireless sensor network lifetime extension purposes. Finally, using the NS-2 simulation tool for simulation experiments to simulate the AF-LEACH and typical clustering routing protocol running situation, analysis and comparison of their total energy consumption of the network life cycle and the experimental data, the simulation results show, AF- LEACH effectively save network energy consumption, growth of 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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