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Clustering routing method for mobile sensor network

A technology of mobile sensors and sensor nodes, applied in network topology, advanced technology, electrical components, etc., can solve problems such as high maintenance costs, inapplicable node mobile scenarios, and reduced transmission reliability

Active Publication Date: 2015-01-14
JIANGSU APON MEDICAL TECHNOLOGY CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

If the routing protocol in the static network is directly applied to the mobile wireless sensor network, there will be problems such as high maintenance cost and reduced transmission reliability.
Therefore, traditional wireless sensor network routing protocols are no longer applicable to the scenario of node mobility

Method used

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  • Clustering routing method for mobile sensor network
  • Clustering routing method for mobile sensor network
  • Clustering routing method for mobile sensor network

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] figure 1 It is the network model adopted by the present invention. The present invention is oriented to small-scale mobile sensor networks, and adopts a hierarchical clustering network structure. All sensor nodes are divided into two types: cluster head nodes and member nodes. In the initial state, all nodes are randomly Choose an angle θ in [0,2π], move with speed v, the size of speed v belongs to [Vmin, Vmax], move to a position with a distance of d from the current position each time, stay for a while and then move. When a node is elected as the cluster head node, it will keep the current moving direction and speed unchanged until a round of data collection is completed. If the sensor node moves to the network boundary, it will be bounced back to ensure that all nodes move within the network range.

[0033] figure 2 Show...

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Abstract

The invention relates to a clustering routing method for a mobile sensor network. For the application environment of the mobile wireless sensor network, the LEACH protocol in a traditional wireless sensor network is improved, and the shift factor and the energy factor are added so as to select a node with relatively low moving speed and high residual energy to form a cluster header node. At the data transmission stage, the dynamic time slot allocation method is adopted, and time slots which are free due to the fact that nodes leave a cluster structure are marked as free time slots and allocated to new member nodes. Thus, the problem that transmission time slots need to be re-divided continuously due to the fact that sensors move is effectively solved, network energy consumption is reduced, network time delay is shortened, and the network lifetime is prolonged.

Description

technical field [0001] The invention relates to a mobile sensor network-oriented clustering routing method, which is suitable for the technical field of mobile sensor networks. Background technique [0002] In recent years, wireless sensor networks composed of sensory information, computing processing, wireless communication and other functions have been widely used. The network is usually composed of sensor nodes with limited resources. Each sensor node can detect its surrounding environment information, and through wireless self-organization Form a transmission network in a way to realize data transmission. The mobile sensor network is a special case, it is a wireless sensor network with mobile nodes, which has a wide range of applications, such as placing sensor nodes on animals to study the activity characteristics of animals, deploying sensor nodes on the water surface to Water quality monitoring or placing sensor nodes on moving objects to monitor the surrounding envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/10H04W84/18
CPCH04W40/10H04W84/18Y02D30/70
Inventor 达志超张登银
Owner JIANGSU APON MEDICAL TECHNOLOGY CO LTD
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