Data transmission method, node and system in wireless sensor network

A wireless sensor and node technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve the problems of high energy consumption, can not meet the needs of actual use, high energy consumption of wireless router network, to ensure reliability , the effect of prolonging the service life

Active Publication Date: 2011-10-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, because the data transmission in the wireless router network is sent in the form of broadcast, and each node in the wireless router network usually has many neighbor nodes, therefore, when data forwarding, the node will broadcast the data to be sent to each neighboring node, so the energy consumption of the wireless router network using the above network coding technology is still relatively high, which cannot meet the needs of actual use
[0007] Aiming at the problem of high energy consumption during data transmission in wireless sensor networks in related technologies, no effective solution has been proposed so far

Method used

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  • Data transmission method, node and system in wireless sensor network
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  • Data transmission method, node and system in wireless sensor network

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Embodiment 1

[0042] This embodiment provides a data transmission method in a wireless sensor network, see image 3 , the method includes the following steps (step S302-step S306):

[0043] Step S302, when the source node determines to send data to the destination node, a pipeline is established according to the routing table;

[0044] Wherein, the routing table is saved on each node, and the routing table on each node includes: the neighbor node identifier, the link quality from the neighbor node to the current node, the remaining energy of the neighbor node, and the hop count of the neighbor node; here The neighbor node refers to the neighbor node of the current node. The acquisition of these information can be realized in advance by broadcasting signal packets in the wireless sensor network. The signal packets can include the fields shown in Table 1:

[0045] Table 1

[0046]

[0047] The above-mentioned pipeline includes a main path node and a pipeline node, each node has an upstre...

Embodiment 2

[0060] In order to ensure reliable transmission of data in the wireless sensor network on the basis of energy saving, this embodiment provides a wireless sensor network (EENC) protocol, which is a complete routing protocol in the direction of data collection, and the content of the protocol can be divided into It includes the following aspects: the establishment process of basic routing information, the establishment process of the pipeline, the calculation of the number of transmissions of each pipeline node using the following Credit algorithm, the data packet transmission process and the reliable retransmission process.

[0061] Step 1: The establishment process of basic routing information. The routing establishment needs to consider the remaining energy of nodes and the link quality between nodes.

[0062] Step 2: The establishment process of the pipeline. When the sensor node needs to send data to the Sink node (sink node, that is, the above-mentioned destination node or ...

Embodiment 3

[0125] This embodiment provides a wireless sensor node, which can serve as a source node to initiate a data sending process, see Figure 5 , the node includes the following modules:

[0126] The pipeline establishment module 52 is configured to establish the pipeline according to the routing table when determining to send data to the destination node, wherein the routing table includes: neighbor node identification, link quality from the neighbor node to the wireless sensor node, residual energy of the neighbor node and The hop count of neighbor nodes; the pipeline includes main path nodes and pipeline nodes;

[0127] Coding module 54, is connected with pipeline establishment module 52, is used for dividing the original data to be sent into specified number of data packets, and specified number of data packets is carried out network coding;

[0128] The sending module 56 is connected with the coding module 54 and is used for sending the coded data packet through the above-men...

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Abstract

The invention discloses a data transmission method, a node and a system in a wireless sensor network. The method comprises the following steps that: a source node creates a channel according to a routing table when determining to transmit data to a destination node, wherein the routing table comprises a neighboring node identifier, link quality from the neighboring node to a current node, rest energy of the neighboring node and hop count of the neighboring node, and the channel comprises a main path node and a channel node; the source node divides the initial data to be transmitted into specified amount of data packets, and performs network coding on the specified amount of data packets; and the source node transmits the coded data packets through the channel. With the data transmission method, the node and the system in the wireless sensor network, the problem of higher energy consumption for data transmission in the wireless sensor network is solved, and the reliability of transmission is also ensured.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a data transmission method, node and system in a wireless sensor network. Background technique [0002] Wireless sensor networks involve a high degree of cross-discipline and highly integrated knowledge. It can cooperate with each other through various integrated micro sensor nodes, monitor and collect information of the environment or monitoring objects in real time, and send these information in a variety of wireless ways in a timely manner, and transmit them to the User terminals, so as to realize the connection between the physical world, the information world and the human world. If the Internet has changed the way of communication between people, then the wireless sensor network will change the way of interaction between people and nature, which is the extension of the Internet to the physical world. [0003] Wireless sensor network is a Mobile Ad Hoc Network...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/14H04W40/24
Inventor 薛涛杜军朝刘惠刘传益邓清哲张捷王利敏李旋李晓军贺文陈文婧郭江坤
Owner ZTE CORP
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