Inhomogeneous clustering method based on node energy balance for wireless sensor network

A wireless sensor, non-uniform clustering technology, applied in network topology, wireless communication, data exchange network, etc., can solve the problem that cannot give theoretical proof, the number of cluster heads cannot be guaranteed, and does not quantitatively consider the balanced consumption of network energy. problems, etc.

Inactive Publication Date: 2015-07-22
HOHAI UNIV CHANGZHOU
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Problems solved by technology

The disadvantage is that although this cluster selection algorithm can have a good coverage rate, the number of cluster heads cannot be guaranteed to be within a reasonable number, resulting in redundant coverage, and it cannot be guaranteed that the nodes in the network can run in each round Balanced energy consumption, unable to give theoretical proof
[0010] (1) The traditional non-uniform clustering algorithm only defines the relationshi

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  • Inhomogeneous clustering method based on node energy balance for wireless sensor network
  • Inhomogeneous clustering method based on node energy balance for wireless sensor network
  • Inhomogeneous clustering method based on node energy balance for wireless sensor network

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[0040] specific implementation plan

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0042] figure 1 It is a non-uniform clustering method for heterogeneous wireless sensor networks based on node energy balance. It is characterized by:

[0043] Include the following steps:

[0044] (1) With the sink node as the center of the circle, the network radius as R, and the nodes randomly and evenly arranged in a circular network with a density of ρ, the network is divided into multi-layer areas;

[0045] (2) Calculate the relationship between the cluster radii in adjacent layers under the condition of node energy balance, according to the ratio of the total energy consumption of nodes in adjacent layers divided by the number of nodes in each layer when the network runs in each round Formula, in order to quantitatively calculate the relationship between the cluster radius between adjacent layers under the cond...

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Abstract

The invention relates to an inhomogeneous clustering method based on node energy balance for a wireless sensor network. The method mainly comprises the following steps: performing multi-layer area division on a circular area by taking sink as a circle center; calculating cluster radius relationship between adjacent layers under an energy balance condition, and quantitatively calculating the cluster radius relationship between adjacent layers under an equality holding condition according to the equality of dividing the total node energy consumption amount of the adjacent layers by node number of each layer during every-time operation of the network; after obtaining the cluster radius relationship between adjacent layers, calculating the specific value of the cluster radius of each layer according to the specific network parameters, finally obtaining the optimal cluster head number of each layer, and determining a probability formula of node election cluster heads in each layer according to the optical cluster head number; and respectively adding nodes in each layer into the cluster in each layer when the node cluster head election between adjacent layers and clustering do not affect each other.

Description

technical field [0001] The invention belongs to the field of wireless sensor network routing, and in particular the invention relates to a heterogeneous wireless sensor network non-uniform clustering method based on node energy balance. According to the mathematical model of node energy consumption balance in the adjacent layer area, it is a method to calculate the relationship between the cluster radius in the adjacent layer under the condition of node energy balance. technical background [0002] In recent years, with the development of Wireless Sensor Networks (WSNs), the application of wireless sensor networks has been found in environmental detection, space exploration, military, smart city, etc., and has become an inseparable part of people's daily life. At the same time, the routing of wireless sensor networks is crucial to the technical realization of the entire WSNs. Effective and reliable routing protocols and their optimization methods are the key to the maturity ...

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Application Information

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IPC IPC(8): H04L12/715H04W40/02H04W84/18
CPCH04L45/04H04L45/46H04W40/02H04W84/18Y02D30/70
Inventor 韩光洁江旭刘立江金芳
Owner HOHAI UNIV CHANGZHOU
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