Dynamic clustering LEACH method in wireless sensor network
A wireless sensor and network technology, applied in wireless communication, services based on specific environments, electrical components, etc., can solve the problems of long distance between cluster nodes and cluster heads, reduce network life cycle, and long communication distance, etc. The effects of head node load, improved QoS performance, and extended service life
Active Publication Date: 2020-01-07
BEIJING JIAOTONG UNIV
View PDF8 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the selection of the LEACH cluster head is completely random, so a node with less remaining energy may be selected to act as the cluster head node, which will cause the energy of the cluster head node to be consumed prematurely and reduce the life cycle of the network.
At the same time, LEACH randomly selects the cluster head, which will cause several cluster heads to be too close or the cluster head to be located at the edge of the deployment area, making the distance between the nodes in the cluster and the cluster head far away.
It will also cause the cluster head nodes in the edge area to communicate with the base station to be far away, resulting in a large amount of energy consumption
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0029] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a dynamic clustering LEACH method in a wireless sensor network. The method comprises the following steps: after receiving a competitive cluster head message, a node in the wireless sensor network calculates a cluster head election value of the node according to configuration parameter information of the node; the node compares the cluster head election value T '(n) of the node with a preset cluster head selection threshold T, if T' (n) is smaller than T, the node announces that the node becomes a cluster head node, and the node informs other nodes that the node is a cluster head in a broadcast mode; and the non-cluster-head node receiving the broadcast of the cluster head automatically joins the cluster where the cluster head closest to the non-cluster-head node is located. According to the method, the residual energy of the node, the number of times that the node acts on the cluster head and the neighbor nodes around the node are subjected to numerical quantization weighting to calculate the threshold value of cluster head selection, so that the selected cluster head is ensured to be more suitable for the specific situation of the network, the overall energyconsumption of the network is balanced, and the QoS performance of network communication is improved.
Description
technical field [0001] The invention relates to the technical field of wireless communication, in particular to a dynamic clustering LEACH method in a wireless sensor network. Background technique [0002] In recent years, with the development of the Internet of Things technology, the number of wireless sensors used has exploded, the network usage scenarios have become more and more abundant, and the network scale has increased from small to large, which puts forward new requirements for the networking mode of wireless sensor networks. Compared with traditional wireless networks, wireless sensor networks have the following characteristics: data-centric, limited node capabilities, large network scale and self-organizing networking. Therefore, when conducting wireless sensor network networking, it is necessary to comprehensively consider the unbalanced transmission of data, communication energy consumption, load balancing, network topology and routing, and network stability to...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/38H04W40/04
CPCH04W40/04H04W4/38
Inventor 冯志鹏余晶晶田慧刘兴春路越张文旗
Owner BEIJING JIAOTONG UNIV