Wireless sensor network topology control method based on non-uniform sections

A wireless sensor and network topology technology, which is applied in the direction of data exchange network, transmission system, digital transmission system, etc., to achieve the effect of prolonging the time of joint work of nodes, improving energy utilization rate, and increasing the amount of network data transmission

Inactive Publication Date: 2008-09-17
SHANGHAI JIAO TONG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

Although this method makes up for some shortcomings of LEACH, there are still places for further improvement

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  • Wireless sensor network topology control method based on non-uniform sections
  • Wireless sensor network topology control method based on non-uniform sections
  • Wireless sensor network topology control method based on non-uniform sections

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Embodiment Construction

[0037] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0038] In this embodiment, the application network model is specifically as follows:

[0039] The sensor nodes are randomly and evenly distributed in the n×n area, and the network has the following properties:

[0040] The sensor network nodes are static; the base station is located at a fixed location outside the network; the transmission power of the node is controllable; the base station can obtain the geographical location information of the network node.

[0041] When the sensor node sends a data packet with the number of bits l, the energy consumption is:

[004...

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Abstract

The invention relates to a topology control method for wireless sensor network based on uneven cluster, belong to sensor technical field, comprising: during the topology generating stage, introducing an uneven minimum mean square subtraction clustering mechanism on a finished cluster in order to reduce energy consumption of in-cluster node; using a strategy based on cluster head energy consumption for setting cluster head changing time, in order to equalize energy consumption on each cluster head node in the network; establishing a cluster head-cluster head energy sensing route, in order to avoid remote wireless transmission; during topology maintenance stage, using a cluster head selection scheme based on node surplus energy and in-cluster node distribution, and using the same strategy to set cluster changing time. With the realization of the method, it can reduce total network energy consumption and equalize energy consumption on each node, in order to prolong cooperative working time of most nodes in the network.

Description

technical field [0001] The invention relates to a control method in the technical field of sensors, in particular to a wireless sensor network topology control method based on uneven clustering. Background technique [0002] With the advancement of sensor technology, embedded system technology, micro-electromechanical system technology, distributed information processing technology and wireless communication technology, new miniature sensors with perception, calculation and communication capabilities have appeared on the world stage. The sensor network composed of these tiny sensors has attracted great attention, and it will have a profound impact on the future life style of human beings. [0003] Topology control is one of the hot technologies in wireless sensor network research. A good network topology control technology is conducive to saving the energy consumption of nodes in the network and improving the throughput of the network. Topology control can usually be divid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/08H04L45/02H04L45/16
CPCY02B60/50
Inventor 刘静曲巍刘艳丽易里安李大鹏
Owner SHANGHAI JIAO TONG UNIV
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