Perceived coverage method for sparse mobile sensor nodes with trade-off between packet loss rate and transmission delay

A technology of transmission delay and sensor nodes, which is applied in the field of wireless sensor networks, can solve the problem of increased packet data transmission delay, increased packet loss rate and data transmission delay, and does not consider the problem of efficient full coverage of the monitoring area, etc. problem, achieve the effect of reducing the packet loss rate and data transmission delay

Active Publication Date: 2021-09-28
绍兴市载沣智能科技有限公司
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Problems solved by technology

However, many methods do not consider the problem of efficient full coverage of the monitoring area in a sparse network environment, the overflow of data storage space of mobile sensor nodes, the discarding of overflow data packets, and the increase of data transmission delay.
[0004] In conclusion, in a sparse wireless sensor network that requires full coverage of the monitoring area, inefficient path selection methods for mobile sensor nodes will lead to increased packet loss rate and data transmission delay

Method used

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  • Perceived coverage method for sparse mobile sensor nodes with trade-off between packet loss rate and transmission delay
  • Perceived coverage method for sparse mobile sensor nodes with trade-off between packet loss rate and transmission delay
  • Perceived coverage method for sparse mobile sensor nodes with trade-off between packet loss rate and transmission delay

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Embodiment Construction

[0077] The present invention will be further described below in conjunction with the accompanying drawings.

[0078] refer to figure 1 , a sparse mobile sensor node sensing coverage method that weighs packet loss rate and data transmission delay includes the following steps:

[0079] 1) Initialization parameters: Make the mobile sensor node perceive a movement path covering the entire monitoring area to represent a bacterium, initialize the grid positions of all bacteria and the neighbor grid set NG j , let the number of bacteria be S=100, and the number of migrations be N ed =50, the number of copies is N re =9, the number of chemotaxis is N c =7, the migration probability is P ed =0.6, optimal fitness value Best f =100. Order D i Represents the movement path of bacteria i that has not been migrated, and is initially an empty set, J(i,g,h,l) represents the adaptation of the movement path of bacteria i in the g-th chemotaxis, the h-th replication, and the l-th migration...

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Abstract

A sparse mobile sensor node sensing coverage method that balances the packet loss rate and data transmission delay. The monitoring area is divided into multiple square grids of the same size. The mobile sensor node starts from the initial position and selects the neighbors of the current grid. The center of the grid is used as the position of the next moment, and an optimization model of mobile sensor node path selection is established that balances the packet loss rate and transmission delay; the optimized model is solved by using the modified bacterial foraging method to obtain the optimal value of the mobile sensor node. Moving path: The mobile sensor node perceives data along the calculated optimal moving path, so as to fully cover the monitoring area. The present invention can find an optimal moving path covering the entire monitoring area through information such as the position of the mobile sensor node, the data storage capacity and the time of data transmission, thereby reducing the data packet loss rate and the data transmission time delay.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to a sparse mobile sensor node perception coverage method that balances packet loss rate and data transmission delay. Background technique [0002] As an effective solution, wireless sensor network has been applied in many fields such as environment perception, military security and industrial control. In traditional static wireless sensor networks, nodes are randomly or manually deployed in a designated monitoring area, and the energy, communication range and sensing range of nodes are all limited. Due to the large area of ​​the monitoring area, the large number of nodes, and the wide deployment range, and the static wireless sensor network has problems such as fixed location and limited coverage, it is necessary to consider the movement of sensor nodes, that is, mobile wireless sensor networks. , MWSNs). In MWSNs, mobile sensor nodes are utilized for data collection. Mob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/20H04W16/22H04W24/08H04W40/12H04W40/22H04W84/18H04L12/26
CPCH04L43/0829H04L43/0852H04W16/20H04W16/225H04W24/08H04W40/12H04W40/22H04W84/18
Inventor 陈友荣陆思一刘半藤赵克华王章权任条娟
Owner 绍兴市载沣智能科技有限公司
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