A data transmission method for energy-efficient wireless sensor networks based on compressed network coding

A data transmission method and wireless sensor network technology, applied in the direction of digital transmission system, wireless communication, transmission system, etc., can solve the problems of relay node blindness and redundant transmission, so as to improve energy efficiency, reduce transmission times, and avoid energy loss. The effect of consumption

Active Publication Date: 2019-11-19
NANJING UNIV OF POSTS & TELECOMM
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  • Application Information

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Problems solved by technology

However, in the transmission process of the above method, the determination of the relay node is blind, which inevitably produces redundant transmission, so in order to further improve energy efficiency, the transmission method needs to be improved

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  • A data transmission method for energy-efficient wireless sensor networks based on compressed network coding
  • A data transmission method for energy-efficient wireless sensor networks based on compressed network coding
  • A data transmission method for energy-efficient wireless sensor networks based on compressed network coding

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Embodiment Construction

[0031] Further set forth the present invention below in conjunction with accompanying drawing:

[0032] figure 1 It is a system model diagram of the present invention. Consider a wireless sensor network per unit area, which contains N random and uniformly distributed sensor nodes, and the network communication distance is r t . At the beginning of the network establishment, each node broadcasts a "hello" signal, and any node i knows its neighbor node Ω(i). Each node broadcasts a "hello" signal with its neighbor list again, and each node learns the information of the two-hop neighbor node, that is, the neighbor node of the neighbor node.

[0033] After obtaining the data collection order, utilize the method of the present invention to carry out data transmission, the data transmission process is as follows figure 2 shown. Note that the data perceived by the node numbered i is x i , then the original data vector is x=[x 1 , x 2 ,...,x N ] T , the data packet format fo...

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Abstract

The invention discloses a high-energy-efficiency wireless sensing network data transmission method based on compression network coding, and mainly solves a problem of high energy consumption of data collection in a wireless sensing network. The method specifically comprises the steps: combining the compression sensing and network coding technologies to improve the energy efficiency selecting an optimal next jump candidate node in a data transmission process through two-jump neighbor information, thereby avoiding the redundancy transmission and further reducing the energy consumption. Meanwhile, a new data package format is designed so as to implement the transmission method. The method can reduce the number of transmission times during data collection, improve the energy efficiency of a system, and is suitable for a large-scale dense wireless sensing network.

Description

technical field [0001] The invention specifically relates to an energy-efficient wireless sensor network data transmission method based on compressed network coding, and belongs to the technical field of wireless communication. Background technique [0002] In recent years, wireless sensor networks have developed rapidly, especially large-scale and densely distributed wireless sensor networks, which have broad application prospects in the fields of environment, industry, and military affairs. However, at present, sensor devices are generally powered by batteries, and the place where the wireless sensor network is deployed is generally inconvenient to reach. Once the battery of the sensor device is exhausted, it means the death of the network node, causing the decline or even loss of the sensor network function. Therefore, energy has become a bottleneck problem restricting wireless sensor networks. In wireless sensor networks, the energy consumption of sensor nodes is mainly...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04L1/00H04W28/06H04W40/22
CPCH04L1/0077H04W28/06H04W40/22Y02D30/70
Inventor杨龙祥周颖杨丽花
OwnerNANJING UNIV OF POSTS & TELECOMM