Clustering routing control method oriented to heterogeneous wireless sensor network

Abstract

The invention discloses a clustering routing control method oriented to a heterogeneous wireless sensor network. The clustering routing control method comprises the following steps of: firstly, carrying out average network energy estimation and accurately estimating next turn of average residual network energy by considering average energy prediction in an ideal state and a historical energy consumption reference value; secondly, carrying out optimal cluster head election and calculating the probability that nodes become cluster heads according to more accurate residual network energy and further determining an optimal cluster head set; thirdly, in the forming process of clusters, introducing a universal-gravitation-like idea and determining that non-cluster-head nodes join in certain cluster according to the magnitude of gravitational force; and fourthly, in a stable data transmission process, carrying out fusion processing on data information collected by each sensor node and forwarding the processed data which are accumulated to a set degree to a base station through the cluster heads. According to the clustering routing control method disclosed by the invention, more accurate average network energy predication estimation is realized, so that the cluster heads generated by electing are distributed more uniformly; meanwhile, a cluster structure is more reasonable, so that energy consumption of each node is reduced and network load balance of the multi-stage heterogeneous wireless sensor network is realized.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to a cluster routing control method for heterogeneous wireless sensor networks. Background technique [0002] Wireless sensor networks (WSNs) are an important part of the Internet of Things and one of the most important innovative technologies in the 21st century. WSNs is a multi-hop self-organizing wireless network composed of a large number of low-cost, low-power miniature sensor nodes, which is essentially different from general wired networks (such as Ethernet) or wireless networks (such as mobile ad hoc networks). Usually, WSNs are data-centric, and they do not care about the sender and receiver, and the sensor nodes remain static or slightly mobile after deployment. Due to resource constraints such as energy and computing capabilities, communication protocols have always been a serious weakness of WSNs, and IP-based protocol routing and traditional multi-hop routing su...

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Problems solved by technology

[0005] In order to solve the problem that the existing heterogeneous wireless sensor network routing control cannot accurately predict and estimate the energy consumption of the entire network, which causes discomfort in cluster head election, unbalanced energy consumption load, and cluster allocation of nodes, the present invention provides a relatively accurate Energy estimation mechanism and cluster division strategy to guide the cluster head election process and determine node ownership

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