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Wireless sensor networks based on reliable data fusion Routing

Author: TaoHuiXiang
Tutor: LuoHong
School: Beijing University of Posts and Telecommunications
Course: Computer Science and Technology
Keywords: Wireless sensor networks Reliable Routing Information magnitude of value Data Fusion
CLC: TP212.9
Type: Master's thesis
Year: 2009
Downloads: 179
Quote: 1
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Abstract


Wireless sensor network is a new kind of non-self-organizing network infrastructure. Network constituted by a large number of sensor nodes, each node collaborative monitoring, sensing and collecting the monitored object, and for processing information transmitted to the needs of the user. The greatest feature of sensor network node energy is limited, while communications and computing capabilities are limited. Sensor networks are usually deployed in complex natural environment, network link quality is poor, prone to node failures. These features make the sensor network is difficult to guarantee the reliability of data transmission. A number of different data fusion of data from the source node fusion, to eliminate redundancy, data transfer can be reduced, saving energy consumption, thereby extending the lifetime of the network. In this paper, sensor networks using the data fusion technology minimum energy reliable routing problems. This topic from the National Natural Science Fund Project \Paper introduces the concept of sensor networks, applications and features, etc. Then introduced the reliable transmission and data fusion technology. Reliable data transmission of a sensor network is hot and difficult. Reliable transfer paper analyzes the factors affecting introduced to improve reliability. Current people for reliable data transmission has made a number of reliable routing protocols such as PSFQ, MESH, ReInForM, etc. This paper analyzes the advantages and disadvantages of these protocols. In this paper, data fusion and retransmission mechanisms to achieve minimum energy consumption and reliable routing. In the fourth chapter analyzes the energy consumption of reliable routing model, put forward the concept of the Value of information, network information from all angles gives the least reliable energy reliable transmission (MERT, Min-EnergyReliable Transmission) problem definition and mathematical expression. Chapter V of common routing topology --- star, chain, tree under the minimum energy reliable transmission problems. MERT key issue is to calculate the optimal each node in the network packet transmission times, the optimal number of transmissions by each node to transfer data at a minimum in order to achieve energy consumption and network information is reliable. This chapter gives the three topologies under MERT Optimal transmission times is calculated. For MERT problem, this paper also designed a minimum of energy consumption and reliable routing protocol (MERT Agreement), including the establishment of routing, reliable data transmission, routing maintenance three parts. MERT agreement on the text of the experiments and simulations. Experiments show that the network information MERT protocol can guarantee reliability, and its energy-saving and reliable routing and have good 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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