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Improved low energy adaptive clustering hierarchy (LEACH) method

A routing protocol and self-adaptive technology, applied in the direction of reducing energy consumption, advanced technology, electrical components, etc., can solve problems such as poor link stability, energy constraints of nodes, and strong randomness of network density

Inactive Publication Date: 2016-06-22
HUNAN UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide an improved low-energy self-adaptive clustering routing protocol method, aiming to solve the problems of some nodes in the communication network composed of wireless sensor network nodes in the house, which are severely limited by energy, poor link stability, and network density. Random questions

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  • Improved low energy adaptive clustering hierarchy (LEACH) method

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[0046] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0048] Such as figure 1 As shown, the improved low-energy adaptive clustering routing protocol method of the embodiment of the present invention includes the following steps:

[0049] S101: Adopt the idea of ​​partitioning and clustering, use the coordinate information of nodes, classify each node according to the actual room space layout, and establish a network model;

[0050] S102: Using a third-order polynomial logarithmic distance path loss model;

[0051] S103: Select a cluste...

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Abstract

The invention discloses an improved low energy adaptive clustering hierarchy (LEACH) an method. The method comprises the following steps of according to a node position, distributing an Area_ID number, combining residual node energy to carry out cluster head selection and realizing partition clustering; taking a third-order polynomial logarithm distance path loss model as an energy consumption model and ensuring practicality of a simulation result; and according to the Area_ID number of the node, using TD-FDMA to select different channels to carry out data transmission, and determining reliability of data transmission. Compared to an existing LEACH, by using the method in the invention, node death time is concentrated; energy losses of a network node can be balanced; monitoring blind spot appearance time is short; a network life cycle is prolonged and a sensor node is economic and high-efficient. The improved LEACH route algorithm is provided and the route algorithm with high energy efficiency, good robustness and a characteristic approaching intelligent-household practical application is realized.

Description

technical field [0001] The invention belongs to the technical field of smart home, and in particular relates to an improved low-energy self-adaptive clustering routing protocol method. Background technique [0002] Wireless sensor network (wireless sensor network) is composed of a large number of small, low-cost sensor nodes with sensing, data processing and wireless communication capabilities. Its main function is to cooperatively perceive, collect and process the information of the perceived objects in the network coverage area, and transmit it to the observer. Because of its broad application prospects in many fields such as military affairs, industry, home furnishing, and environment, WSN has attracted extensive attention from governments and scholars in various countries, and has become the latest research hotspot. As an important application of wireless sensor network, smart home will become the development direction of smart home in the future because it can meet peo...

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Application Information

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IPC IPC(8): H04W40/10H04W84/18
CPCH04W40/10H04W84/18Y02D30/00Y02D30/70
Inventor 周维龙
Owner HUNAN UNIV OF TECH
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