Relay transmission system based on FSO/RF link and energy control method

A transmission system and energy control technology, applied in the field of signal transmission, can solve problems such as inability to collect and utilize energy, waste of resources, etc.

Inactive Publication Date: 2018-09-14
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After the optical signal is transmitted to the destination node, the optical signal detected by the photodetector at the destination node carries an AC component signal (RF electrical signal) and a DC component signal, wherein the RF electrical signal is received by th

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  • Relay transmission system based on FSO/RF link and energy control method
  • Relay transmission system based on FSO/RF link and energy control method
  • Relay transmission system based on FSO/RF link and energy control method

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] The embodiment of the present invention discloses a relay transmission system and method based on an FSO / RF link, which effectively collects the DC component in the optical signal at the destination node and effectively utilizes the part of energy.

[0028] See figure 1 , figure 1 It is a structural schematic diagram of a FSO / RF link-based relay transmission system disclosed in the first embodiment of the present invention, the system includes a photoe...

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Abstract

The invention discloses a relay transmission system based on an FSO/RF link. The system comprises a photoelectric converter, an energy harvesting device, an energy control device and an RF signal transmitter. The energy harvesting device is connected with the photoelectric converter, thereby harvesting a direct current component output by the photoelectric converter. The energy control device is connected with the energy harvesting device, thereby converting the direct current component into a working voltage/direct for the RF transmitter to transmit an RF signal when the direct current component harvested by the energy harvesting device is equal to a target threshold. According to the scheme, the direct current component in the signal converted by the photoelectric converter is harvestedby the energy harvesting device, and the direct current component is converted by the energy control device into the working voltage/direct for the RF transmitter to transmit the RF signal. Accordingto the scheme, the direct current component can be harvested effectively and the direct current component is used as the working voltage/direct for the RF transmitter to transmit the RF signal, so theresource waste is avoided. The invention also discloses an energy harvesting method. The method has the benefits as above.

Description

technical field [0001] The invention relates to the field of signal transmission, in particular to a hybrid FSO / RF link-based relay transmission system and an energy control method. Background technique [0002] In the existing hybrid RF / FSO link relay transmission system, the electrical signal transmitted from the source node is transmitted to the relay node after passing through the RF channel, where it is amplified and forwarded at the relay node, and the electrical signal is converted by the electrical-to-optical converter. The signal is converted into an optical signal, and then through the FSO channel, the optical signal is transmitted to the destination node. After the optical signal is transmitted to the destination node, the optical signal detected by the photodetector at the destination node carries an AC component signal (RF electrical signal) and a DC component signal, wherein the RF electrical signal is received by the mobile terminal, but at this time the desti...

Claims

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Application Information

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IPC IPC(8): H04B10/29H04B10/2575
CPCH04B10/25759H04B10/29
Inventor 杨亮王文杰
Owner GUANGDONG UNIV OF TECH
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