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A wireless sensor network congestion control method and system

A wireless sensor and network congestion technology, applied in wireless communication, network topology, network traffic/resource management, etc., can solve problems such as low reliability and achieve high reliability.

Active Publication Date: 2022-04-19
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there is a technical problem of low reliability in congestion control in the existing clustering network

Method used

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  • A wireless sensor network congestion control method and system
  • A wireless sensor network congestion control method and system
  • A wireless sensor network congestion control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] figure 1 A schematic flowchart of a wireless sensor network congestion control method provided by an embodiment of the present invention, as shown in figure 1 As shown, the method includes:

[0090] S101: For the target communication network, obtain the cluster head nodes of each node cluster in the target communication network at the next moment.

[0091] The data transmission of the wireless sensor network under the network cluster structure takes the cluster head node as the core, and sends the data to the sink node in a hop-by-hop manner. The relay nodes of other clusters forward data packets, so the cluster head is the source of network congestion. Once a monitoring event occurs, a large number of data packets will gather at the cluster head node, resulting in buffer overflow and data loss in the queue of the cluster head node, which will cause local congestion in the network. If local network congestion is not dealt with in time, it will spread to the entire ne...

Embodiment 2

[0161] Corresponding to Embodiment 1 of the present invention, this embodiment of the present invention provides a wireless sensor network congestion control system.

[0162] Figure 6 A schematic structural diagram of a wireless sensor network congestion control system provided by an embodiment of the present invention, as shown in Figure 6 As shown, the system includes:

[0163] The obtaining module 601 is used for obtaining the cluster head node of each node cluster in the target communication network at the next moment for the target communication network;

[0164]Prediction module 602, for each cluster head node, using the Kalman filter prediction algorithm to predict the queue length of the data to be sent by the cluster head node;

[0165] A judging module 603, configured to acquire the congestion state of the cluster head node according to the queue length; and judge whether it is necessary to determine an assisting node for the cluster head node according to the co...

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Abstract

The embodiment of the present invention provides a wireless sensor network congestion control method and system, the method includes: 1) for the target communication network, obtain the cluster head node of each node cluster in the target communication network at the next moment; 2) for each The cluster head node uses the Kalman filter prediction algorithm to predict the queue length of the data to be sent by the cluster head node; 3) Obtain the congestion status of the cluster head node according to the queue length; The cluster head node determines the assisting node; 4), if so, obtain the assisting node in the node cluster corresponding to the cluster head node, and determine the working state of the assisting node according to the congestion degree of the cluster head node, so that the assisting node is 5) If not, use the next moment of the next moment as the next moment in the next control process, and return to step 1) until the control is completed. By applying the embodiment of the present invention, the reliability is higher than that of the prior art.

Description

technical field [0001] The invention relates to a wireless sensor network congestion control, in particular to a wireless sensor network congestion control method and system. Background technique [0002] With the rapid development of intelligent sensing technology, WSNs (Wireless Sensor Networks, wireless sensor network) have a wide range of applications in environmental monitoring, disaster warning, public safety, military fields, etc. Due to limitations in storage capacity and power supply capacity, network nodes are prone to local or entire network congestion when a large amount of sudden data occurs or node failure occurs, which in turn leads to increased packet loss rate, increased delay, and reduced energy efficiency. , thus seriously affecting the life cycle and transmission efficiency of the network. Therefore, how to alleviate and avoid the wireless sensor network congestion problem is an urgent technical problem to be solved. At present, the WSN network can be c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W84/18
CPCH04W28/0284H04W28/0289H04W84/18
Inventor 陈辉张春雨
Owner ANHUI UNIV OF SCI & TECH
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