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Short packet communication transmission performance analysis method based on multi-antenna energy capture

A technology of energy capture and analysis methods, applied in wireless communication, electrical components, circuit devices, etc., can solve the problems of RF signal power loss, energy transfer efficiency attenuation, etc.

Active Publication Date: 2020-01-17
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

Due to the severe power loss of RF signals, the main challenge of wireless energy transfer based on RF signals is the significant attenuation of energy transfer efficiency over the distance from the energy transmitter to the energy receiver

Method used

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  • Short packet communication transmission performance analysis method based on multi-antenna energy capture
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  • Short packet communication transmission performance analysis method based on multi-antenna energy capture

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Embodiment Construction

[0043] In the performance analysis of the short packet communication transmission method based on multi-antenna energy harvesting provided by the present invention, the short packet transmission system of wireless energy harvesting is configured with multiple antennas, which can use the spatial dimension to improve energy transmission efficiency and effectively reduce time delay; the block error probability can be Directly characterize system reliability, availability, and energy capture efficiency. For this system, this study uses the energy captured by the source node to send information; according to the spatial distribution of the source node and users and the zero-forcing beamforming method, the cumulative distribution function of the signal-to-noise ratio of each user is obtained, and the Gaussian function is used to approximate the distribution function , deriving an approximate closed expression for the block error probability for each user. Secondly, by analyzing the ...

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Abstract

The invention discloses a short packet communication transmission system performance analysis method based on multi-antenna energy capture. The method is applied to a short packet communication scenebased on a multi-antenna wireless energy transmission technology, and information is sent by utilizing energy captured by a source node; firstly, an approximate closed expression of the block error probability of each user is derived. Secondly, obtaining a time delay boundary by analyzing the accumulated service capacity of the service process, calculating the probability of inaccurate transmission, comprehensively analyzing the probability of time delay violation of inaccurate transmission and accurate transmission, and further analyzing the time delay performance of the whole system.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to an ultra-reliable and low-delay application scenario in the fifth-generation cellular mobile communication. Background technique [0002] As wireless devices become smaller and more energy efficient, energy harvesting is emerging as a potential technology for powering low-power wireless devices. Because radio frequency signals can carry both information and energy, this makes wireless power transfer a particularly attractive technology. Today, most wireless devices are powered by cables or replaceable batteries, which limits energy sustainability and mobility of wireless communications. In practice, wired charging and battery replacement may not be feasible or incur high costs for many wireless applications, such as medical devices implanted in the human body. In addition, wired charging and battery refresh shorten the operating time of wireless mobile devices....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/06H02J50/20H02J50/40
CPCH04W24/06H02J50/20H02J50/40Y02D30/70
Inventor 赵伟骆亚菲王斌鲍慧
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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