Wireless sensor network clustering method based on particle swarm optimization

A wireless sensor and particle swarm optimization technology, applied in network topology, wireless communication, advanced technology, etc., can solve problems such as unbalanced energy consumption, uneven distribution of network cluster heads, and short network survival time, and achieve residual energy optimization, Improve scalability and stability, optimize the effect of cluster energy consumption and transmission energy consumption

Inactive Publication Date: 2013-07-10
QINGDAO AGRI UNIV
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Problems solved by technology

This method uses particle swarm optimization to perform clustering, which solves the problems of uneven distribution of cluster heads and unbalanced energy consumption in wireless sen...

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  • Wireless sensor network clustering method based on particle swarm optimization
  • Wireless sensor network clustering method based on particle swarm optimization
  • Wireless sensor network clustering method based on particle swarm optimization

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Embodiment Construction

[0020] We combine wireless sensor network models for farmland environment detection, such as figure 1 Shown, the specific implementation of the present invention is described in detail.

[0021] In the 100m×100m farmland environmental perception detection area, 100 sensor nodes are randomly arranged, and the base station is located at (50, 50)m. The specific model is:

[0022] (1) The base station is located in the center of the farmland environmental detection area

[0023] (2) The sensor nodes are randomly distributed and the energy is limited

[0024] (3) The sensor node has a power control function and can send power consumption according to the distance

[0025] (4) Each sensor node knows its location information

[0026] (5) The node is stationary or moves very slowly relative to the base station

[0027] (6) There are three types of sensor nodes, which collect temperature, humidity and CO 2 concentration

[0028] 1. Cluster head selection

[0029] The invention f...

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Abstract

The invention relates to a wireless sensor network clustering method based on particle swarm optimization and belongs to the field of topology control of wireless sensor networks. The wireless sensor network clustering method is characterized in that the number of optimal clusters is dynamically decided according to the current state of a farmland environment monitoring network, factors affecting energy consumption are taken into full consideration, a fitness function is constructed, and optimal cluster heads are selected by using a particle swarm optimization algorithm, so that the cluster heads are uniformly distributed in a network, and the load of the network is equalized; during clustering, the factors affecting the energy consumption are taken into full consideration, and the optimization is carried out by using the particle swarm optimization algorithm, so that the utilization ratio of energy is increased, and the life cycle of the farmland environment monitoring network is prolonged; and the residual energy of nodes is taken into consideration during cluster head selection, so that cluster head nodes have enough energy to execute tasks, such as collection and aggregation, and the security of data is guaranteed.

Description

technical field [0001] The invention belongs to the field of wireless sensor network topology control, in particular to a particle swarm optimization-based wireless sensor network clustering method. The method designed in this patent achieves the purpose of reducing energy consumption of sensor networks with limited resources, prolonging network survival time and improving system scalability by optimizing clustering. Background technique [0002] As a common device for sensing and collecting data, wireless sensors have attracted more and more attention. They are widely used in military, industrial control, environmental detection and other fields, especially in the field of farmland environmental detection. Wireless sensor nodes are usually small in size and powered by batteries with limited energy. It is necessary to prolong the survival time of wireless sensors as much as possible and collect more farmland environmental detection data. The topology control of wireless sen...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W52/02H04W84/18
CPCY02D30/70
Inventor 马德新徐鹏民盖凌云吕光杰宫丽宁柏学进王学刚
Owner QINGDAO AGRI UNIV
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