Dynamic clustering leach method in wireless sensor network

Abstract

The invention provides a dynamic clustering LEACH method in a wireless sensor network. The method includes: after a node in the wireless sensor network receives the cluster head election message, it calculates its own cluster head election value according to its own configuration parameter information; the node compares its own cluster head election value T'(n) with the preset The cluster head selection threshold T is compared, if T'(n)<T, then the node declares itself to be the cluster head node, and the node tells other nodes that it is the cluster head in the form of broadcast; the non-cluster node that receives the cluster head broadcast The head node automatically joins the cluster where the nearest cluster head is located. The method of the present invention calculates the threshold value of the cluster head selection by numerically quantifying the three factors of the remaining energy of the node, the number of times the node has served as a cluster head, and the neighbor nodes around the node, so as to ensure that the selected cluster head is more suitable for the specific conditions of the network and balance The overall energy consumption of the network improves the QoS performance of network communication.

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...

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

Images