Relay auxiliary information and energy transmission method based on time slot switching

Abstract

The invention discloses a relay auxiliary information and energy transmission method based on time slot switching. According to the relay auxiliary information and energy transmission method disclosedby the invention, a SWIPT relay with an energy collection function is imported, and a scene and mathematical model of the proposed relay auxiliary information and energy transmission method based ontime slot switching is provided. The system interruption performance and the energy efficiency performance are analyzed. The influence of a time slot switching factor on the SWIPT interruption performance and the energy efficiency is studied. Studies show that when a high-time-slot switching factor meets the performance requirements of the energy efficiency, a relatively low interruption probability can be obtained. Meanwhile, the influence of the source transmitting power on the SWIPT interruption performance and the energy efficiency is analyzed, and the studies show that, if the source transmitting power is high, the relatively low interruption probability can be obtained, but the energy efficiency is too low. In order to balance the interruption performance and the energy efficiency, signals cannot be transmitted at the maximum power, but should be transmitted at the 'optimal' power. By adoption of the relay auxiliary information and energy transmission method disclosed by the invention, the requirements of a wireless energy-carrying network for the interruption performance and the energy efficiency are effectively satisfied, and the balance between information transmission andenergy collection is achieved at the same time.

Description

technical field [0001] The present invention belongs to the technical field of information and communication engineering, and proposes relay receiver-assisted transmission based on time slot switching (Time Switching, TS) in the case of limited node energy in a wireless energy carrying (Simultaneous Wireless Information and Power Transfer, SWIPT) network. In the information and energy transmission method, the outage probability and energy efficiency quantitative analysis process of SWIPT network relay cooperative transmission is given. The method involves a compromise between Outage Performance (OP) and Energy Efficiency (EE) in a wireless energy-carrying network, and is mainly a TS-based relay auxiliary information and energy transmission method that achieves a trade-off between outage performance and energy efficiency in a SWIPT network. Background technique [0002] In recent years, the ever-expanding information and communication technology (Information and Communication...

AI Technical Summary

Problems solved by technology

This technology makes up for the shortcomings of traditional energy collection, and solves the problem that the collection of energy from the natural environment (such as geothermal energy, wind energy, vibration energy, solar energy, tidal energy, etc.) is highly dependent on the external environment, it is not easy to control, and it is inconvenient to configure reliable power sources for wireless nodes. Shortcomings

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