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Energy collection and storage method for layered data return link in wireless sensor network

A wireless sensor and backhaul link technology, applied in wireless communication, network topology, network planning, etc., can solve the problem of not considering the energy collection and storage scheme of the data backhaul link, achieve flexible cluster head layout, and reduce energy consumption Effect

Active Publication Date: 2016-09-07
ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, none of the above documents considered the energy harvesting and storage scheme based on the data backhaul link of the cluster head.

Method used

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  • Energy collection and storage method for layered data return link in wireless sensor network
  • Energy collection and storage method for layered data return link in wireless sensor network
  • Energy collection and storage method for layered data return link in wireless sensor network

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Embodiment Construction

[0034] This embodiment is used in a wireless sensor network composed of 100 nodes. Five cluster head nodes are set in the entire sensor network. Consider an edge cluster head to transmit the data in the cluster to the data collection node through 5 hops, such as figure 2 Shown in the backhaul link. The implementation steps of this embodiment are as follows:

[0035] Set the specific network parameter values ​​as follows: the power generation power of the wireless charging device is set to 50W, and the energy collection efficiency of the cluster head node is 0.005, 0.01, 0.015, 0.0075, 0.0125; It is set to 500kbits / s, the backhaul link bandwidth is set to w=1MHz, and the data to be sent back by the edge cluster head satisfies an exponential distribution with an average value of 50Mbits; assuming that every 500kbits of data is It is sent back to the collection point, and the amount of income generated is 1. If there is a delay of 1 second per 500kbits, this yields a negativ...

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Abstract

The invention relates to an energy collection and storage method for a layered data return link in the wireless sensor network. The method comprises the following steps that the wireless sensor network is established and divided into clusters according to certain areas, nodes in each area transmit data to a cluster head, the cluster heads form a data return link, and the data is transmitted to a data collector; and one or multiple wireless energy transmission device(s) is / are arranged in the network, solar energy or wind energy is converted into electromagnetic energy, the electromagnetic energy is transmitted out via a directional antenna, and the cluster heads are provided with energy collectors to collect and store energy. According to the invention, the energy collection and storage capacity of the cluster head based data return link in the sensor network can be determined, and the total revenue, which is obtained by subtracting energy transmission cost consumed to collect energy of the cluster head nodes and energy storage loss from the total data return revenue, of the system is maximized.

Description

technical field [0001] The invention relates to a method for energy collection and storage of layered data backhaul links in a wireless sensor network, which belongs to the technical field of wireless communication. Background technique [0002] Due to its decentralized nature, the energy consumption of wireless sensor networks has always been a key issue in the industry. In recent years, with the advancement of energy harvesting technology, how to use energy harvesting technology to optimize data transmission in wireless sensor networks has received extensive attention. Most of the existing literature assumes that sensor nodes are equipped with energy harvesting devices, and then designs the optimization problems of data transmission and energy consumption. However, the scenario where all network nodes are equipped with energy harvesting devices has certain application limitations; and the existing literature does not consider the use of specific wireless charging devices ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/18H04W84/18
CPCH04W16/18H04W84/18
Inventor 曾伟郝玉国田世明潘明明孙旻范瑞祥曹蓓叶远誉江峰
Owner ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO