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Wireless sensor network cluster construction and cluster head updating method thereof

A wireless sensor network and cluster head technology, applied in wireless communication, network topology, advanced technology, etc., can solve the problem of low stability of the wireless sensor network cluster structure, and achieve high overhead, high energy consumption, and stable sex high effect

Active Publication Date: 2017-11-07
ANHUI AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0006] Aiming at the problem of low stability of the existing wireless sensor network cluster structure, the present invention provides a wireless sensor network cluster construction and cluster head update method, which can improve cluster stability and network service performance

Method used

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  • Wireless sensor network cluster construction and cluster head updating method thereof
  • Wireless sensor network cluster construction and cluster head updating method thereof
  • Wireless sensor network cluster construction and cluster head updating method thereof

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Embodiment Construction

[0058] The present invention will be further described below with reference to specific embodiments.

[0059] like figure 1 and figure 2 As shown, a wireless sensor network multi-level cluster structure, there are 11 cluster head structures A-K, the network is divided into 4 layers, namely the 0th layer cluster network, the first layer cluster network, the second layer cluster network and the Layer 3 cluster network; data is passed between clusters through the cluster head node to the sink node.

[0060] In the cluster network constructed by the invention, the logical connection relationship only exists between the cluster heads of adjacent layers, and there is no logical connection relationship between the cluster heads of the same layer network. Among the cluster heads with logical connection relationship, the cluster head in the upper network is called the parent cluster head, and the cluster head in the lower network is called the child cluster head.

[0061] The const...

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Abstract

The invention discloses wireless sensor network cluster construction and a cluster head updating method, belongs to the field of a wireless sensor network, and solves the problem of low stability of an existing wireless sensor network cluster structure. A construction method disclosed by the invention completes multi-layer cluster construction of the whole network from near to far by taking an aggregation node as a starting point, and particularly comprises the steps of: by taking the aggregation node as the center, partitioning sensor nodes in a wireless communication radius of the sensor nodes into a zeroth layer of cluster network, and then carrying out construction of a first layer of cluster network by using a node energy-saving equilibrium strategy; and then electing a node with the maximum cluster head capacity value from member nodes a previous layer of network cluster as a cluster head of a next layer of cluster network, constructing the next layer of cluster network, and sequentially carrying out iteration to construct a second layer and other layers of cluster networks. The layered cluster structure constructed by the wireless sensor network cluster construction disclosed by the invention has the characteristics of high stability and distributed demand-based cluster updating, and the defect of high cluster maintenance cost caused by periodic whole network cluster updating of a conventional method is overcome.

Description

technical field [0001] The invention belongs to the field of wireless sensor networks, in particular to a method for constructing multi-level clusters and updating cluster heads in wireless sensor networks. Background technique [0002] The clustering topology is easy to manage, beneficial to the application of distributed routing algorithms, has good scalability, and is suitable for large-scale wireless sensor network applications. The cluster routing protocol usually divides the network into clusters. Each cluster consists of a cluster head and multiple cluster members. The cluster head manages or controls the member nodes in the entire cluster, and the data is transmitted to the sink node through multi-hop between the cluster heads. The primary goal of clustering routing protocol design is to form a reasonable network structure through an efficient clustering algorithm, ensure network connectivity through an effective cluster head rotation mechanism, and prolong the netwo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/04H04W40/22H04W40/24H04W84/18
CPCH04W40/04H04W40/22H04W40/248H04W84/18Y02D30/70
Inventor 饶元邓成李绍稳江朝晖高宁商伶俐苏军
Owner ANHUI AGRICULTURAL UNIVERSITY
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