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Prediction control oriented short packet wireless transmission method

A technology of wireless transmission and predictive control, applied in wireless communication, advanced technology, network traffic/resource management, etc., to achieve the effect of improving stability

Inactive Publication Date: 2018-11-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only that, due to the transmission of data at every moment, which will cause a huge energy loss, so it is necessary to improve the transmission

Method used

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  • Prediction control oriented short packet wireless transmission method
  • Prediction control oriented short packet wireless transmission method
  • Prediction control oriented short packet wireless transmission method

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Embodiment Construction

[0034] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] Taking a predictive control system as an example, the wireless communication network sends the data packet u i send to the buffer of the current slot i, where u i Consists of K instructions, which can be expressed as u i =[u 0 (i), u 1 (i), u 2 (i),...,u K-1 (i)]. Once the buffer successfully receives the packet u i , it takes the current command u 0 (i) Sent to the executor for execution, while buffering K-1 commands in the future. In the next time slot, if the packet transmission fails, the buffer will send its cached control command to the actuator for execution to ensure the reliability of the communication. The key point of the present invention is to predict the data transmission of short packets in the control system, when a data packet is sent successfully, when will the next data packet be transmitted, and in what w...

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Abstract

The invention belongs to the field of wireless communication technology, and particularly to a prediction control oriented short packet wireless transmission method. The invention provides a data transmission method based on energy. Through solving the power at each time point in a transmitted data packet, the time point with lowest power is selected for transmitting a new data packet. Furthermore, in screening the time points, a requirement that an error probability at the time point is lower than or equal with an interruption probability must be satisfied. The prediction control oriented short packet wireless transmission method has beneficial effects of reducing the number of interruptions through using the relatively low power of the system, and greatly improving stability of a data transmission system.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a predictive control-oriented short packet wireless transmission method. Background technique [0002] In predictive control systems, data packets contain data for the current moment and predicted future moments. When the executor receives the data packet, it executes the command at the current moment and stores the command at the future moment. If the data packet cannot arrive in time or the data packet is lost during the transmission process, the previously stored command is executed. If the transmission is successful, update the old data and cache the new data. Therefore, this kind of predictive control system can guarantee lower outage probability and delay, and can also improve the stability of the system. [0003] Also in future wireless communication systems, a considerable number of "things", such as sensors and actuators, are expected to be ...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W28/02
CPCH04W28/0236H04W72/0446Y02D30/70
Inventor 赵国栋谢莎陈智李立英
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA