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Wireless sensor network child node data transmission method based on multiplexing

A data transmission method and wireless sensor technology, applied in wireless communication, electrical components, etc., can solve the problems of long delay in receiving information by the leader node, shortening the network life cycle, reducing the work efficiency of the whole network, etc., to extend the network life cycle , Reduce transmission delay, reduce delay effect

Inactive Publication Date: 2016-06-01
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

When the number of nodes is large, this method will consume a lot of transmission time, and at the same time, the delay of the leader node receiving information will become longer, thereby reducing the work efficiency of the entire network and shortening the life cycle of the network

Method used

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  • Wireless sensor network child node data transmission method based on multiplexing
  • Wireless sensor network child node data transmission method based on multiplexing
  • Wireless sensor network child node data transmission method based on multiplexing

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Embodiment Construction

[0030] The invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] Phase 1: Network Deployment Phase

[0032] Step 1: If figure 1 As shown, let the nodes be distributed in a square area with a side length of L meters, and deploy two different types of nodes in the network, one kind of scalar node specially collects information with a small amount of data such as temperature and light; the other A vector node, which is specially used to collect information with a large amount of data such as audio and video.

[0033] Step 2: If figure 1 As shown, the base station is deployed at a distance of H meters directly above the square area, which is used to collect all information in the square area.

[0034] Step 3: If figure 2 As shown, since scalar nodes only collect some information with a relatively small amount of data, and the amount of audio and video information collected by vector nodes is generally large, we stipulate tha...

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Abstract

The invention discloses a wireless sensor network child node data transmission method based on multiplexing. The large-scale wireless sensor network data transmission technology of the method is a hot research topic, and high delay of data in the transmission process is always a defect in short-distance wireless communication. Child nodes transmit the collected information to a head node by adopting the frequency division multiplexing technology; and compared with the conventional time division multiplexing technology, the method can effectively reduce transmission delay of the child nodes, thereby improving efficiency of data transmission and prolonging the network life period. The child nodes transmit the information to the head node through the new multiplexing technology instead of the conventional time division multiplexing technology, so that data transmission delay can be reduced, work efficiency of the nodes is improved, and network life period is prolonged.

Description

technical field [0001] The invention relates to a method for collecting data by a leader node in a fixed area of ​​a wireless sensor network, which belongs to the cross field of computer network and wireless communication technology. Background technique [0002] The wireless sensor network is composed of a bunch of sensor node devices, which can perceive, transmit, receive, and store peripheral information, and can collect temperature, light, pressure, audio and video information and send them to the destination node. For densely distributed wireless sensor networks, network deployment and information interaction are often carried out in chain, tree, mesh and star structures. Among them, the multi-hop multi-path cluster tree data collection mode is the most typical. With the rapid development of mobile Internet and big data technology, the hybrid wireless sensor network with perception capabilities has gradually become an important front end of the ubiquitous network syste...

Claims

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Application Information

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IPC IPC(8): H04W72/12
CPCH04W72/12H04W72/20
Inventor 沙超沈天呈仲莲花杨瑞吴敏顾焕钊张海涛王汝传
Owner NANJING UNIV OF POSTS & TELECOMM
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