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A Method for Reducing Power Consumption of Wireless Sensor Networks Based on Minimum Cost Spanning Tree

A wireless sensor and power consumption technology, applied in network topology, wireless communication, energy consumption reduction, etc., can solve problems such as wireless sensor network power consumption, achieve the effects of reducing power consumption, prolonging survival time, and optimizing network topology

Inactive Publication Date: 2016-05-25
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of power consumption in a wireless sensor network composed of sensor nodes with limited power carried by itself, and to propose a method for reducing the power consumption of a wireless sensor network

Method used

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  • A Method for Reducing Power Consumption of Wireless Sensor Networks Based on Minimum Cost Spanning Tree
  • A Method for Reducing Power Consumption of Wireless Sensor Networks Based on Minimum Cost Spanning Tree
  • A Method for Reducing Power Consumption of Wireless Sensor Networks Based on Minimum Cost Spanning Tree

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Embodiment

[0045] In order to test the influence of the present invention on the energy consumption of the wireless sensor network, 30 sensor nodes are arranged in a random network generated by a classic random model, and the test range is divided into 10 time periods. The random network generation model has two nodes v with probability p i , V j Add connections between, p can control the density of the network, the greater the p, the greater the density of the network, when p=1.0, it means that the network is fully connected in each time period. According to the generated random network for 10 consecutive time periods, the space-time graph ζ is constructed. The experiment randomly generated and constructed 30 different time-space maps, and run them on each time-space map. The result of the experiment is the average of the running results of the present invention on these 30 time-space maps.

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Abstract

The invention provides a method for reducing power consumption of a wireless sensor network based on a minimum cost spanning tree, which is used for solving the problem of the power consumption of the wireless sensor network composed of sensor nodes, the electric energy carried by the sensor nodes is limited, and the method belongs to the technical field of control of the wireless sensor network. A topological structure of the wireless sensor network is controlled, so that the whole wireless sensor network is connected within the specified time, and simultaneously, the sensor nodes in an active status are minimized, so that the overall power consumption of the network is minimum within the time range. The method is especially suitable for the large-scale and self-organizing wireless sensor network with random deployment and complex environment, the network connection status of the wireless sensor network can be predicted, or network connections of the wireless sensor network are periodically changed.

Description

Technical field [0001] The invention belongs to the technical field of wireless sensor network control, and specifically relates to a wireless sensor network topology control method, which is used to reduce the power consumption of the entire wireless sensor network. Background technique [0002] At present, in wireless sensor networks, batteries that cannot generate electricity are generally used to provide network sensor nodes with the energy required for signal transmission and reception. For a wireless sensor network composed of sensor nodes with limited charge, some sensor nodes on the backbone of the network will quickly use up their own power, and then may be separated from the entire network, resulting in the possibility of various sensor nodes in the entire network. No longer connect. In wireless sensor networks, the large power consumption of sensor nodes becomes a bottleneck problem in maintaining network connections. Therefore, how to control the topology of the wir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W84/18H04W52/02
CPCY02D30/70
Inventor 李凡王昱银志圆
Owner BEIJING INSTITUTE OF TECHNOLOGYGY