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A Method for Determining the Number of Cluster Heads in Data Fusion for Wireless Sensor Networks

A wireless sensor and data fusion technology, applied in network topology, wireless communication, advanced technology, etc., can solve problems such as the number of cluster head nodes that have not been obtained for the optimal collection scheme, and the degree of distortion has not been studied

Active Publication Date: 2017-10-03
北京勇搏科技有限公司
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Problems solved by technology

However, the number of cluster head nodes in the specific optimal acquisition scheme was not obtained, and the content of distortion was not studied.

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  • A Method for Determining the Number of Cluster Heads in Data Fusion for Wireless Sensor Networks
  • A Method for Determining the Number of Cluster Heads in Data Fusion for Wireless Sensor Networks
  • A Method for Determining the Number of Cluster Heads in Data Fusion for Wireless Sensor Networks

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Embodiment Construction

[0048] Combine below Figure 1-3 The method for determining the number of data fusion cluster heads based on the rate-distortion function in the wireless sensor network of the present invention is specifically described, comprising steps:

[0049] Step 1: In the wireless sensor network in advance, according to the number of nodes in the set wireless sensor network area, the area radius, the routing influence coefficient, and the center coordinates of the cluster head in the area, calculate the sensor node data The distance transmitted to the cluster head node, and then calculate the optimal data in the entire wireless sensor network according to the rate-distortion function, energy consumption coefficient of data fusion, loop energy consumption coefficient, data transmission rate, compression rate and network consumption energy model The number of fusion cluster heads. The wireless sensor network area takes a central control node as the center of a circle, and 18 nodes are di...

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Abstract

The invention provides a data fusion cluster head number determination method for a wireless sensor network. According to the method, the corresponding cluster head number is calculated according to the minimum energy consumption of the network. The sum of three parts of energy, namely, the energy P1 consumed when data are transmitted to cluster heads through a sensor terminal node, the energy P2 consumed when data are transmitted to a central control node through cluster head nodes, and the energy P3 consumed when the cluster head nodes compress the data transmitted to the central control node. The corresponding cluster head number is calculated according to the minimum value of the sum of the consumed energy. Thus, the aims of saving energy to the maximum degree and prolonging the service life of the network on the premise that information is undistorted in the data fusion process of the wireless sensor hierarchical type network are achieved.

Description

technical field [0001] The invention relates to a data fusion cluster head determination method of a wireless sensor network, in particular to a cluster head number determination method based on an information rate distortion function. Background technique [0002] The wireless sensor network has a very broad application prospect. The sensor nodes transmit the data sensed in the sensing area to the cluster head node, and then send the data information to the base station. Due to the limited energy of wireless sensor network nodes, low power consumption is the primary consideration in communication requirements, and the energy consumption of nodes transmitting data is much greater than the energy consumption of nodes computing data, so an important way to reduce the total energy consumption of the network is Reduce the total amount of data transmitted by the node. Using a hierarchical network topology based on the idea of ​​data fusion can reduce the energy of data communica...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W84/18
CPCY02D30/70
Inventor 何泾沙杨明欣张玉强李晓会
Owner 北京勇搏科技有限公司