Life optimization method for retransmission-aware clustered wireless sensor networks

A wireless sensor and optimization method technology, applied in network planning, wireless communication, advanced technology, etc., can solve the problem of not considering the energy consumption of data retransmission

Active Publication Date: 2015-04-01
BEIHANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the energy consumption caused by data retransmission is not considered in the life optimization of the clustered wireless sensor network, and by considering the retransmission mechanism, the derivation and optimization of the life model of the evenly deployed clustered wireless sensor network Solve and propose a new lifetime optimization method for clustered wireless sensor networks

Method used

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  • Life optimization method for retransmission-aware clustered wireless sensor networks
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  • Life optimization method for retransmission-aware clustered wireless sensor networks

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Embodiment

[0144] In the embodiment of the present invention, a uniform deployment scheme with optimal lifetime of the wireless sensor network in an area with a radius of 500 meters is calculated through given parameters.

[0145] The present invention provides a method for optimizing the lifetime of a clustered wireless sensor network considering retransmission. The establishment steps of the optimization model are the same as the six steps in the specific implementation mode, and will not be described here. After the optimization model is established, the following The parameter values ​​are used to solve the model:

[0146] Table 2 Initial parameter values

[0147] parameters

[0148] l ACK and l DATA They are the lengths of the packet headers of ACK and sensing data respectively. m ACK and m DATA are the lengths of the ACK packet and the perception packet, respectively.

[0149] It is found that under the initial conditions, as shown in Table 3, the optimal distance b...

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Abstract

The invention discloses a life optimization method for retransmission-aware clustered wireless sensor networks. The method comprises steps as follows: preliminarily deploying clustered wireless sensor networks according to a model; establishing an energy consumption model for wireless sensor nodes; establishing a retransmission model for the clustered wireless sensor networks; establishing an energy consumption model for the retransmission-aware clustered wireless sensor networks; establishing a transmission success probability calculation model for the retransmission-aware clustered wireless sensor networks; establishing a life optimization model for the clustered wireless sensor networks under the evenly deployed condition and performing solving. According to the method, the purpose is energy-consumption-aware network life maximization, constraint conditions comprise network connectivity, coverage and the data transmission success probability, the life optimization model for the retransmission-aware clustered wireless sensor networks is established, distances among wireless sensors and the number of deployment layers of the wireless sensors are optimized with a genetic algorithm, and problems that the energy consumption is excessively high, the coverage rate is insufficient, the data transmission success probability is not high and the like are solved.

Description

technical field [0001] The invention relates to a method for optimizing the lifetime of a clustered wireless sensor network considering retransmission, and belongs to the technical field of wireless sensors in the technical field of network communication. Background technique [0002] Wireless Sensor Networks (WSN) is a multi-hop self-organizing network system formed by a large number of cheap miniature sensor nodes deployed in the monitoring area through wireless communication. Wireless sensor network is the result of the common development of sensor technology, micro-electromechanical system, modern network and wireless communication technology, and is widely used in military reconnaissance, industrial control, logistics, intelligent building and other fields. With the in-depth research and widespread use of wireless sensor networks, wireless sensor networks will go deep into every field of human life. [0003] The node energy of wireless sensor network is limited, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/22H04W52/02
CPCH04W16/22H04W52/0219H04W52/228Y02D30/70
Inventor 张楠李瑞莹刘小西黄宁
Owner BEIHANG UNIV
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