Data transmission method, data transmission system and nodes

A data transmission and node technology, applied in the field of data transmission, can solve problems such as increased node energy consumption, node failure, unfavorable data transmission, etc., to achieve the effect of ensuring smooth transmission, ensuring stability, and saving energy

Active Publication Date: 2009-12-02
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] During the research and practice of the existing technology, the inventor found that the following problems exist in the existing technology: since the cluster head is randomly selected, the relative position of the communication between the cluster head and the node is not controlled, if the distance between the cluster head and the node is compared The node needs to increase the transmission power to communicate with the cluster head, which will increase the energy consumption of the node and cause the node to fail quickly due to the exhaustion of the capacity, which is not conducive to the stability of the network and is not conducive to the transmission of data.

Method used

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  • Data transmission method, data transmission system and nodes
  • Data transmission method, data transmission system and nodes
  • Data transmission method, data transmission system and nodes

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Embodiment Construction

[0022] Embodiments of the present invention provide a data transmission method, system, and node for transmitting data collected by nodes in a network.

[0023] The data transmission method, system, and node provided by the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] The present invention takes a wireless sensor network as an example to illustrate the data transmission method, system, and node provided by the embodiment of the present invention, but the data transmission method, system, and node provided by the embodiment of the present invention are not limited to applications and wireless sensor networks. In this embodiment of the present invention, each node has a globally unique ID number for identification. The ID number can be a physical index number of a hardware node, or a unique identifier manually assigned to each node. In the clustering routing protocol, the nodes in the sensor networ...

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Abstract

The invention discloses a data transmission method, a data transmission system and nodes. The data transmission method comprises the following steps: selecting cluster heads by competition in the nodes with the same communication radii; selecting secondary cluster heads; and cooperating with the secondary cluster heads for transmitting data. The invention also provides the data transmission system which comprises first nodes and second nodes, wherein the first nodes are generated by the competition in the nodes with the same communication radii and used for selecting the second nodes which are used for cooperating with the first nodes to transmit data. The invention can save node energy in a network.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a data transmission method, system and node. Background technique [0002] The wireless sensor network is formed by randomly distributed nodes through self-organization. The randomly distributed nodes are integrated with sensors, data processing units and communication modules; the built-in sensors of the nodes measure the temperature, humidity, pressure, light, infrared and other factors in the surrounding environment of the nodes. , sonar, radar and seismic waves and other signals, these signals are processed by the data processing unit, and the communication module sends the signal data processed by the data processing unit to the user terminal. [0003] Multiple-input and multiple-output technology refers to the use of multiple antennas for transmission and reception at both the transmitting end and the receiving end of wireless communication; multiple-input and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/08H04L12/28H04L1/06H04W52/02
CPCY02D30/70
Inventor 赵保华屈玉贵王庆华蔺智挺张英堂刘桂英张建伟
Owner HUAWEI TECH CO LTD
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