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Underwater wireless sensor network topology control method based on balanced energy consumption

A wireless sensor and network topology technology, applied in the field of wireless sensor network, can solve the problems of large channel transmission delay, reduced reliability of data transmission, network segmentation, etc., to achieve balanced network load, improve energy utilization efficiency, and prolong life cycle effect

Active Publication Date: 2016-07-13
ZHEJIANG SCI-TECH UNIV
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Problems solved by technology

Due to the particularity of the underwater environment, the channel transmission delay is large, resulting in a high probability of communication collision between nodes; and the multipath effect of signal propagation, which greatly reduces the reliability of data transmission
Nodes will resend data multiple times to ensure the reliability of data transmission, but this also increases the energy consumption to several times the consumption of sending data at one time; in addition, the failure of some nodes may also lead to network segmentation

Method used

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  • Underwater wireless sensor network topology control method based on balanced energy consumption
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Embodiment Construction

[0020] like figure 1 As shown, the topology control method of an underwater wireless sensor network based on energy balance provided by the present invention starts from the operation of the network, and after completing the initialization preprocessing, proceeds according to the following sequence of steps:

[0021] Step 1: Analysis of the optimal cluster: use the N-order nearest neighbor method to calculate the optimal cluster number k opt .

[0022] Step 2: Selection of the cluster head: each node is selfish and rational. Since the cluster head needs to fuse the data in the cluster to consume more energy, each node is unwilling to act as the cluster head. We will use the non-cooperative game in economics The cluster head node is theoretically selected, and each node in the network executes a game to decide whether to become a cluster head.

[0023] First establish the node game model, and then calculate its u according to the energy and path loss of the node i value, u ...

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Abstract

The invention relates to an underwater wireless sensor network topology control method based on balanced energy consumption, belonging to the technical field of wireless sensor network. The underwater wireless sensor network topology control method includes the steps: utilizing a non-cooperative game theory to select nodes with higher residual energy from all the nodes as cluster heads to enable the energy consumption level of the whole network to achieve balance; adding the nodes which can receive a cluster head message into the cluster through a neighbor principle; for the nodes which cannot receive a cluster head signal, selecting reliable relay nodes and adding the reliable relay nodes into the cluster according to the principle of minimizing the energy consumption in the cluster; and preparing through a route of adjacent clusters, so that the whole network forms a tree-shaped structure to guarantee starting of a standby route when a link fails, wherein if some nodes fail, the network starts the maintenance process to perform networking again to guarantee normal operation of the network. The underwater wireless sensor network topology control method based on balanced energy consumption reduces communication and energy consumption in an underwater topology network structure, balances network energy consumption, and prolongs the network life cycle.

Description

Technical field: [0001] The invention relates to an underwater wireless sensor network topology control method based on energy balance, and belongs to the technical field of wireless sensor networks. Background technique: [0002] Underwater Wireless Sensor Networks (UWSNs for short) is an underwater wireless ad hoc network composed of sensor nodes deployed underwater. As people pay more attention to the underwater environment, UWSNs are widely adopted as a special application. Due to the particularity of the underwater environment, the channel transmission delay is large, resulting in a high probability of communication collisions between nodes; and the multipath effect of signal propagation greatly reduces the reliability of data transmission. Nodes will resend data multiple times to ensure the reliability of data transmission, but this also increases the energy consumption to several times the consumption of sending data at one time; in addition, the failure of some node...

Claims

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Application Information

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IPC IPC(8): H04W40/24H04W40/32H04L12/715H04W84/18
CPCH04L45/46H04W40/24H04W40/246H04W40/32H04W84/18Y02D30/70
Inventor 洪榛周丽丹宋婷婷王瑞邵茜
Owner ZHEJIANG SCI-TECH UNIV
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