A routing method for wireless sensor networks based on dual-cluster-head clustering and data fusion

Abstract

The invention relates to a wireless sensor network routing algorithm based on double-cluster-head clustering and data fusion. The wireless sensor network routing algorithm relates to a wireless sensor node set (1) and an aggregation node (2), and is characterized in that the wireless sensor node set (1) comprises 200 wireless sensor nodes distributed in a 200-m*200-m square area at will, and the 200 wireless sensor nodes are expressed by N_i, wherein i=1, 2, ... , 200; it is assumed that ten clusters exist jointly and are expressed by C_j, wherein j=1, 2, ... , 10; each N_i only belongs to the corresponding cluster C_q, wherein q is one of 1, 2, ... , 10; the double-cluster-head clustering algorithm based on clustering is researched according to uneven cluster-head distribution caused by LEACH protocol cluster-head random selecting to optimize energy digestion of a wireless sensor network, and the service life of the network is prolonged; the nodes of the whole network area are firstly divided into a plurality of classes (namely, following clusters) with the clustering algorithm, then a first cluster head and a second cluster head are selected in the clusters, the first cluster head is used for transmitting data to the aggregation node, and the second cluster head is used for data fusion.

Description

technical field [0001] The invention relates to a wireless sensor network routing method based on dual cluster head clustering and data fusion, and belongs to the technical field of wireless sensors. Background technique [0002] Wireless sensor network is a research hotspot that is currently attracting much attention. It is a multi-hop self-organizing network system formed by a large number of cheap wireless sensor nodes deployed in the monitoring area through wireless communication. Its purpose is collaborative perception, Collect and process the information of sensing objects in the covered network area, and send it to the user terminal. At present, wireless sensor networks have been put into use in many fields, for example, in the environment, it can monitor soil conditions, air pollution conditions, and crop growth conditions. In terms of medical monitoring, it is possible to track the patient's all-round condition without greatly affecting the patient's life. In the ...

AI Technical Summary

Problems solved by technology

[0004] However, since the generation of cluster head nodes in the LEACH clustering algorithm is randomly selected, and has nothing to do with the distribution of sensor nodes in the monitoring area, when the density of nodes is serious, the use of LEACH algorithm may cause the selected cluster heads to be uneven. distribution in the monitoring area

When there are few or no cluster head nodes in an area where the nodes are relatively sparse, ordinary nodes in this area will directly communicate with the sink node, thus speeding up the death of ordinary nodes and further affecting the life cycle of the entire network

Images