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Wireless sensor network dynamic topology control method based on position information

A wireless sensor and dynamic topology technology, applied in network topology, wireless communication, data exchange network, etc., can solve the problems of fixed nodes, unguaranteed node energy balance, unbalanced energy distribution in the whole network, etc. Effect

Inactive Publication Date: 2008-08-20
JIAXING WIRELESS SENSOR NETWORKS CENT CAS
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Problems solved by technology

[0009] However, there is an important flaw in the GAF algorithm: each node is always located in a fixed grid, and the nodes in each grid are relatively fixed.
In this way, the energy balance of the nodes in the whole network cannot be guaranteed, because the nodes in the grid with few nodes undertake the heavy task of transmitting data, and there are more nodes in a grid that can share the transmission tasks with each other, then The task of data transmission is lighter, and the node can sleep for a longer time
The imbalance of tasks leads to the imbalance of energy distribution in the whole network

Method used

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  • Wireless sensor network dynamic topology control method based on position information
  • Wireless sensor network dynamic topology control method based on position information
  • Wireless sensor network dynamic topology control method based on position information

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] The invention adds a mechanism of periodically changing the origin position to the GAF wireless network topology control algorithm to change the number of nodes in the grid and the topology of the whole network, so as to achieve energy balance of the nodes in the whole network.

[0019] The network topology generated after the implementation of the GAF algorithm is related to the position of the origin of the coordinates. After the origin of the network coordinates is fixed, the virtual grid of the entire network is correspondingly fixed, and remains unchanged during the whole process of network operation. Based on the GAF wireless network topology control algorithm, the invention can make each node and different nodes in the same grid by dynamically adjusting the coordinate origin to form different topology structures.

[0020] The movement of t...

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Abstract

The present invention belongs to wireless sensor network protocols technology field, and specially relates to dynamictopology controlling means in wireless sensor network based on locating information. The method provides a more favor controlling means for full net energy balanced Topological to improve the defect that full net energy distribution is not equality caused by that GAF algorithm is merely about grid internal node energy balance. The present invention uses method of dynamic regulation origin of coordinates for periodic forming different topological structure in full net. The present invention used in wireless sensor network can reaches full net energy balanced effect.

Description

technical field [0001] The invention belongs to the technical field of wireless network protocols, and in particular relates to a dynamic topology control method based on location information in a wireless sensor network. This method is mainly used to balance the tasks undertaken by the nodes in the wireless sensor network, so as to achieve the purpose of energy balance in the whole network. Background technique [0002] In recent years, wireless sensor networks have developed rapidly since they received extensive attention from theory and industry, and various new technologies about sensor networks have also received much attention. [0003] Currently, wireless sensor networks are limited by factors such as cost and volume, and the processing power, wireless bandwidth and battery capacity of sensor nodes are very limited. The energy of wireless sensor nodes cannot be replenished in most cases, so prolonging the working life of wireless sensor networks as much as possible b...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/56H04L12/28H04W28/08H04W84/18
Inventor 刘海涛张宝贤高雪赵壮黄奎姚郑张锋
Owner JIAXING WIRELESS SENSOR NETWORKS CENT CAS
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