Uplink relay full duplex transmission mechanism model based on non-orthogonality

A transmission mechanism, full-duplex technology, applied in duplex signal operation, electrical components, wireless communication, etc., can solve problems such as low spectrum efficiency

Inactive Publication Date: 2021-03-23
GUIZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to propose a non-orthogonal uplink relay full-duplex transmission mechanism based on the problem of low spectral efficiency in the existing traditional half-duplex uplink relay transmission mode Model

Method used

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  • Uplink relay full duplex transmission mechanism model based on non-orthogonality
  • Uplink relay full duplex transmission mechanism model based on non-orthogonality
  • Uplink relay full duplex transmission mechanism model based on non-orthogonality

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Embodiment Construction

[0016] Such as figure 1 As shown, a non-orthogonal based uplink relay full-duplex transmission mechanism model, the specific implementation steps are as follows:

[0017] Uplink user 1 and user 2 allocate transmission power β by using the self-generated channel to the relay station 1 P t with beta 2 P t , where β 1 +β 2 = 1, β 1 >β 2 . It is assumed that neither of the two users can directly communicate with the base station, thus, cooperative transmission of the relay station is required. Without loss of generality, it is also assumed that user 1 is closer to the relay station than user 2 is to the relay station.

[0018] The relay station is a full-duplex antenna, so full-duplex transmission can be implemented. The two-user signals from the uplink received by the receiving end of the full-duplex antenna can be expressed as:

[0019]

[0020] where h 1r [n], h 2r [n] with h r [n] represent user 1 and relay, user 2 and relay and self-interference channel coeff...

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Abstract

The invention discloses an uplink relay full duplex transmission mechanism model based on non-orthogonality, which specifically comprises the following steps of: allocating transmission power sum by an uplink user 1 and a user 2 by utilizing the self-generated channel condition to a relay station, it is assumed that two users cannot directly communicate with a base station, and therefore cooperative transmission of a relay station is needed; in addition, it is assumed that the distance between the user 1 and the relay station is closer than the distance between the user 2 and the relay station. The relay station is a full duplex antenna and can implement full duplex transmission. Compared with a traditional uplink relay half-duplex transmission mechanism, the uplink relay full-duplex transmission mechanism based on the non-orthogonal multiple access technology provided by the invention has the advantage that better traversal capacity communication performance is obtained.

Description

technical field [0001] The invention relates to a wireless communication transmission technology, and specifically relates to a continuous interference elimination technology in a non-orthogonal multiple access technology, a self-interference elimination technology in a full-duplex communication, and a decoding and forwarding transmission protocol in a relay communication. Background technique [0002] The traditional uplink relay transmission is based on the half-duplex communication mode. With the rapid development of integrated circuit technology and signal processing technology, it can effectively suppress the self-interference caused by full-duplex communication. Therefore, the implementation of full-duplex Duplex communication is possible. Non-orthogonal multiple access technology has better communication performance than orthogonal multiple access technology due to the use of power domain differential power allocation, superposition coding and continuous interference ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/14H04W24/06H04W24/02
CPCH04L5/14H04W24/06H04W24/02
Inventor 谢先斌
Owner GUIZHOU INST OF TECH
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