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Multiple access method and system in a photoelectric hybrid network

A technology of photoelectric hybrid and access method, which is applied in the direction of electromagnetic wave transmission system, orthogonal multiplexing system, transmission system, etc., can solve the problems of lack of ideal technical solutions, achieve excellent performance, high communication rate, and reduce interference Effect

Active Publication Date: 2021-06-15
PEKING UNIV +1
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  • Claims
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Problems solved by technology

However, for the photoelectric hybrid network, how to achieve effective multiple access and improve network performance is still lacking an ideal technical solution

Method used

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  • Multiple access method and system in a photoelectric hybrid network
  • Multiple access method and system in a photoelectric hybrid network
  • Multiple access method and system in a photoelectric hybrid network

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing, further describe the present invention through embodiment, but do not limit the scope of the present invention in any way.

[0035] The invention provides a non-orthogonal multiple access system and method in a wireless optical communication and radio frequency communication hybrid network (photoelectric hybrid network). In the photoelectric hybrid network system, the radio frequency communication scheme is adopted from the user to the relay, and the wireless optical communication scheme is adopted from the relay to the central node. In order to make the purpose of the present invention, technical solutions and advantages clear, the specific technical solutions are:

[0036] Consider a multi-user system where users transmit their respective signals to the same central node. Users can be mobile or fixed terminals, such as mobile phones. The user installs a radio frequency antenna for transmitting radio frequency signals.

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Abstract

The invention discloses a multiple access method and system in a photoelectric hybrid communication network. The physical nodes of the system include users, relays and central nodes; multiple users transmit their respective communication signals to the same central node; from users to relays Radio frequency communication technology is adopted, and wireless optical communication technology is adopted from the relay to the central node. The technical scheme of the present invention aims at the problem that the photoelectric hybrid network exclusively provides multiple access, adopts the non-orthogonal multiple access mode in the radio frequency link, and also adopts the non-orthogonal multiple access mode in the wireless optical communication link. Compared with the traditional radio frequency wireless optical hybrid network, the present invention includes the problem of multiple access at the radio frequency end and the multiple access problem of the wireless optical communication link. Advantage, can provide better system performance.

Description

technical field [0001] The present invention relates to the technical field of wireless optical communication and radio frequency communication hybrid network, in particular to a multiple access method and system in an optoelectronic hybrid network, which is a non-orthogonal multiple access method for multi-users in wireless optical communication atmospheric turbulence channel technical solutions. Background technique [0002] With the ever-increasing demand for communication quality and communication bandwidth, wireless optical communication system, as an excellent communication technology, is one of the research hotspots of high-speed communication at present. Compared with traditional radio frequency communication technology, wireless optical communication has the advantages of high bandwidth, small size, anti-electromagnetic interference and good confidentiality. However, the wireless optical communication system faces some practical difficulties, mainly including the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/11H04B10/291H04B10/293H04B10/54H04B10/556H04J11/00
CPCH04B10/11H04B10/291H04B10/293H04B10/541H04B10/5561H04J11/0026
Inventor 党安红李锐杰陈特范陆海
Owner PEKING UNIV
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