Resource allocation method for bi-directional SWIPT relay system under hardware damage condition

A relay system and resource allocation technology, which is applied in the field of resource allocation satisfying the bidirectional SWIPT relay system, and can solve problems such as performance impairment and research on bidirectional SWIPT transmission performance.

Active Publication Date: 2019-02-15
CHONGQING COLLEGE OF ELECTRONICS ENG +1
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  • Application Information

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Problems solved by technology

At present, the application research of this technology in the two-way relay transmission network has attracted the attention of many researchers, but most of the research considers the ideal hardware situation, and no one has conducted research on the two-way SWIPT transmission performance under actual hardware damage.
At the same time, cons

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  • Resource allocation method for bi-directional SWIPT relay system under hardware damage condition
  • Resource allocation method for bi-directional SWIPT relay system under hardware damage condition
  • Resource allocation method for bi-directional SWIPT relay system under hardware damage condition

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Embodiment Construction

[0062] The specific implementation manner of the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0063] Explanation of terms:

[0064] SWIPT (Simultaneous Wireless Information and Power Transfer): Simultaneous transmission of wireless information and power.

[0065] PS (Power Splitting): Power splitting.

[0066] DF (Decode and Forward): Decode and Forward.

[0067] An embodiment of the present invention selects the half-duplex two-way SWIPT relay network as the implementation object, which includes two source nodes S 1 , S 2 , and a relay R configured with PS energy harvesting receivers. It is presupposed that due to factors such as shadow fading and transmission blocking in the entire system, the direct transmission link cannot be used, and the communication only relies on the relay to assist in information exchange. At the same time, each node in the transmission process takes into account the distortion noise introdu...

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Abstract

The invention provides a resource allocation method for a bi-directional SWIPT relay system which can alleviate hardware damage under the consideration of actual hardware damage conditions. The methodcomprises the following steps: S1, constructing a signal transmission model; S2, constructing an optimization formula; S3, according to the upper bound value of the transmission performance under thehardware damage, adopting a low-complexity optimization method based on the relaxation upper bound to obtain the time allocation value of the system; and S4, obtaining a closed-form solution of the power split ratio according to the time allocation value. The beneficial effect of the invention is that the method of the invention reduces the influence of the hardware damage, and the obtained performance curve is the approximate solution of the theoretical curve.

Description

technical field [0001] The invention relates to the technical field of communication systems, in particular to a resource allocation method satisfying a two-way SWIPT relay system under hardware damage conditions. Background technique [0002] Due to the influence of phase noise, I / Q imbalance, nonlinear high-power amplification, etc., actual equipment often suffers from many hardware damages. These hardware damages will cause signal distortion and signal constellation distortion, thereby reducing the transmission performance of the system. . When analyzing system performance, traditional analysis methods usually presuppose that the hardware is designed as an ideal physical device that does not suffer from hardware damage, or consider the impact of these damages as part of the additional noise of the receiver. However, the actual hardware damage brings The incoming signal distortion is affected by the transceiver power and cannot be simply treated as white noise, and the cu...

Claims

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Application Information

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IPC IPC(8): H04W24/06H04W24/02H04W72/04H04W72/08H04W52/24
CPCH04W24/02H04W24/06H04W52/243H04W72/0446H04W72/0473H04W72/541
Inventor 王国仲彭醇陵
Owner CHONGQING COLLEGE OF ELECTRONICS ENG
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