Method for balancing layered energy consumption of wireless sensor network facing to perception events

A wireless sensor and network layering technology, applied in network topology, wireless communication, energy consumption reduction, etc., can solve problems such as exhaustion of energy consumption, failure to work normally, etc., to achieve balanced energy consumption, convenient process, and improve data fusion efficiency effect

Inactive Publication Date: 2009-11-18
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Nodes that consume too much energy too quickly

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  • Method for balancing layered energy consumption of wireless sensor network facing to perception events
  • Method for balancing layered energy consumption of wireless sensor network facing to perception events
  • Method for balancing layered energy consumption of wireless sensor network facing to perception events

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[0049] The invention provides a method for balancing energy consumption of a wireless sensor network. Based on the sensing events that occur in the network deployment environment, this method constructs multiple hierarchical sensing sets centered on the cluster head node, and according to the level of each node in the sensing set, the remaining energy and each node in the set According to the specific load of the transmission link, the corresponding task scheduling is carried out to balance the energy of each node. At the same time, with the base station node as the center, the optimal data transmission path between sensor sets is established to further balance the energy consumption of the entire network and prolong the network lifetime. Its specific implementation method is:

[0050] 1) In the wireless sensor network, evenly spread m wireless sensor network nodes with the same initial energy, the same communication capability and sensing capability;

[0051] 2) At the edge...

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Abstract

The invention provides a method for balancing layered energy consumption of a wireless sensor network facing to perception events, which relates to a method for saving the energy consumption for the wireless sensor network and solves the problem of balancing the energy consumption of the wireless sensor network which is deployed intensively under the drive of the perception events. A basic system comprises intensively-deployed wireless sensor network nodes, cluster head nodes determined through an election strategy, the perception events randomly happening in the network, and base station nodes deployed on the network edge; on the basis of the perception events happening in a network deployment environment, a plurality of layered sensing collections centering on the cluster head nodes are constructed, and according to the level in which each node is positioned in the sensing collections, the rest energy and the concrete loading condition of each transmission link in the collections, corresponding task scheduling and transmission path selection are performed to balance the energy of each node; and simultaneously, centering on the base station nodes, an optimized data transmission path among the sensing collections is established, and the energy consumption of the entire network is further balanced and the network life cycle is prolonged by dynamically changing a transmission cycle of cluster head data.

Description

technical field [0001] The invention relates to an energy saving method for a wireless sensor network, which mainly solves the energy consumption balance problem of a densely deployed wireless sensor network driven by sensing events, and belongs to the intersecting field of sensor network technology and wireless communication technology. Background technique [0002] Wireless Sensor Network (WSN for short) integrates various advanced technologies such as microelectronics technology, embedded computing technology, modern computer network technology, wireless communication technology, and distributed information processing technology. Carry out real-time monitoring, perception and collection of information of various environments or monitoring objects in the network coverage area, and process it. The processed information is sent wirelessly and transmitted to observers in an ad hoc multi-hop network. The wireless sensor network integrates the logical information world and the ...

Claims

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Application Information

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IPC IPC(8): H04W40/02H04W84/18H04L29/08
CPCY02B60/50Y02D30/70
Inventor 王汝传沙超黄海平孙力娟叶宁肖甫陈志王玉斐凡高娟
Owner NANJING UNIV OF POSTS & TELECOMM
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