Wireless sensor network improved multi-hop LEACH protocol based on fuzzy logic

A wireless sensor, fuzzy logic technology, applied in network topology, wireless communication, advanced technology, etc.

Active Publication Date: 2020-10-23
CHANGCHUN UNIV OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is aimed at the end-to-end

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  • Wireless sensor network improved multi-hop LEACH protocol based on fuzzy logic
  • Wireless sensor network improved multi-hop LEACH protocol based on fuzzy logic
  • Wireless sensor network improved multi-hop LEACH protocol based on fuzzy logic

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] An improved multi-hop LEACH protocol for wireless sensor networks based on fuzzy logic in the present invention consists of four parts, namely system model, new threshold function clustering, fuzzy logic hop count calculation and variable round cycle multi-hop routing. The system model provides a model for protocol implementation, including network model, energy model and network layered structure. The new threshold function clustering is based on the improved threshold function of LEACH to elect the cluster head, taking into account the distance between nodes, residual energy and centrality, so that the node located in the center of the cluster and with more residual energy has a higher probability of becoming a cluster head. The fuzzy logic hop count calculation is to calculate the optimal hop count of each cluster head according to the remaining ene...

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Abstract

The invention relates to a multi-hop routing protocol of a wireless sensor network, in particular to a wireless sensor network improved multi-hop LEACH protocol based on fuzzy logic, and aims to solvethe technical problems of hop-by-hop communication, end-to-end delay and hot spots in the prior art. The optimal hop count is calculated by utilizing the fuzzy logic controller according to the residual energy, the data length and the distance to the base station, so that the network energy consumption is reduced, and the service life of the network is maximized. In addition, a threshold functionbased on residual energy, node centrality and BS distance is proposed to select CH, so that CH distribution is uniform. The hop count is combined with the residual energy and the number of members, and an optimal intermediate channel is selected to forward data to the base station. Finally, the performance is evaluated through a large number of simulations, and the IMF-LEACH is greatly improved in the aspects of average hop count, average end-to-end delay, energy consumption ratio, network lifetime and the like.

Description

technical field [0001] The present invention relates to a wireless sensor network multi-hop routing protocol, in particular to a wireless sensor network multi-hop LEACH protocol based on fuzzy logic IMF-LEACH (Improved Multi-hop LEACH protocol based on Fuzzy logic controller), IMF-LEACH comprehensively considers remaining Energy, node centrality and distance factors from the base station optimize the cluster head threshold in LEACH to form a relatively stable, evenly distributed and energy-saving cluster structure. Then use the fuzzy logic controller to determine the cluster head CH (Cluster Head) hops according to the remaining energy, data length and distance to the base station, and perform data transmission based on the hops, thereby reducing the network end-to-end delay and average hops . Background technique [0002] As one of the most important and basic information collection technologies in the Internet of Things (IoT), wireless sensor networks (wireless sensor net...

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Application Information

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IPC IPC(8): H04W24/02H04W24/06H04W40/10H04W40/32H04W84/18
CPCH04W24/02H04W24/06H04W40/10H04W40/32H04W84/18Y02D30/70
Inventor 胡黄水韩优佳赵宏伟王宏志姚美琴
Owner CHANGCHUN UNIV OF TECH
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