Efficient broadcast method of wireless sensor network energy based on tree structure

A wireless sensor and tree structure technology, applied in the field of wireless sensor network energy-saving broadcast routing, can solve problems such as node death and data failure

Inactive Publication Date: 2009-11-11
泛联智城(北京)国际科技有限公司
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Problems solved by technology

Then the data collected by the network in this area cannot be transmitted, which is equivalent to the death of all nodes in this area

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  • Efficient broadcast method of wireless sensor network energy based on tree structure

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[0009] The present invention will be further described below in conjunction with accompanying drawings and examples.

[0010] The protocol is divided into three stages. In the first stage, local energy information exchange is completed. In the second stage, a broadcast tree is established according to the energy information obtained in the first stage. In the third stage, the broadcast source sends data according to the broadcast tree established in the second stage. The first two stages can be performed in parallel.

[0011] The implementation process of this method assumes that each node knows its neighbor nodes.

[0012] The first stage completes the exchange of local energy information. Each node diffuses its own residual energy information group to its adjacent area with period T. Each node shall hold a sequence number seq. Each remaining energy information packet carries the following information: source node id value, seq value, remaining energy value of the node, T...

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Abstract

The invention belongs to the field of wireless sensor network energy-saving broadcast routing, in particular relates to a method for mutually exchanging node energy information in a local range in a wireless sensor network. The method is used to obtain node energy sequence information in local range and is applied to a broadcast tree structure to achieve the aims of evenly using network node energy and prolonging network life. The invention has the technical scheme that in the wireless sensor network, nodes exchange rest energy information in the local range and a certain proportion of nodes (such as 10 percent of nodes) with lowest energy and under protocol protection in a local area are reduced in the probability of functioning as the tree node in the broadcast tree and further reduced in the probability of participating in the packet retransmission.

Description

technical field [0001] The invention belongs to the field of wireless sensor network energy-saving broadcast routing. It specifically relates to a method for exchanging energy information of nodes in a local area in a wireless sensor network. By this method, the energy order information of nodes in a local area is obtained and applied to the broadcast tree structure to achieve a balanced use of the wireless sensor network. The goal of node energy and prolonging the life of the network. Background technique [0002] The wireless sensor network is composed of sensor nodes and information collection (sink) nodes. The sensor nodes are responsible for data collection and transmission. The sink node is responsible for summarizing the data sent by the sensor nodes in the network. It is also the control node of the entire network. Nodes are managed. [0003] Since the nodes in the wireless sensor network are deployed, it is difficult to recover them. Therefore, it is difficult to...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/08H04L45/16
CPCY02B60/50
Inventor 张宝贤高雪赵壮黄奎姚郑张锋
Owner 泛联智城(北京)国际科技有限公司
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