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A Maximum Energy Transmission Beamforming Method Applicable to Channel Uncertainty

A technology that maximizes energy and transmits beams. It is used in the field of communications to improve performance and anti-jamming capabilities, reduce complexity, and ensure target rates.

Active Publication Date: 2021-04-06
FOSHAN SHUNDE SUN YAT SEN UNIV RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the purpose of the present invention is to provide an optimal beamforming method with the maximum received energy as the optimization goal while ensuring the information transmission rate when the channel state information of the transmitter is not completely known.

Method used

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  • A Maximum Energy Transmission Beamforming Method Applicable to Channel Uncertainty
  • A Maximum Energy Transmission Beamforming Method Applicable to Channel Uncertainty
  • A Maximum Energy Transmission Beamforming Method Applicable to Channel Uncertainty

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Embodiment Construction

[0035] refer to figure 1 , a kind of maximum energy transmission beamforming method applicable to the channel uncertainty of the present invention, first construct the multiple-input single-output MISO wireless transmission system with mixed input of information and energy, and the parameters of the MISO wireless transmission system are: transmitter The number of antennas is N, and the channel fading vectors between the transmitter antenna and the energy receiver and information receiver are h and g, where h=(h 1 , h 2 ...h N ), g=(g 1 , g 2 ... g N ), h i is the channel fading coefficient between the i-th antenna and the information receiver, g i is the channel fading coefficient between the i-th antenna and the energy receiver, w=(w 1 ,w 2 ...w N ) is the beamforming vector, w i is the beamforming power value between the i-th antenna and the energy receiver, δ is the variance of the channel white noise, and the power limit of the transmitter is P.

[0036] Combine...

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Abstract

The invention discloses a maximum energy transmission beamforming method suitable for channel uncertainties. In the case of incomplete cognition of the channel state information of the transmitter, the optimization goal is to maximize the received energy, and a maximum energy transmission beamforming method is designed. The optimal beamforming scheme can not only guarantee the target rate of information transmission, but also obtain the maximum possible receiving energy, effectively improve the performance and anti-interference ability of the system, and at the same time convert the complex model into a convex semidefinite program that has been solved model, reducing the computational complexity.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a maximum energy transmission beamforming method suitable for channel uncertainty. Background technique [0002] The rapid growth of the number of mobile communication base stations, the number of terminals, and the amount of data traffic has led to extensive research on wireless communication technology, but these studies often only focus on the field of data transmission. Although wireless electromagnetic waves carry a part of energy, the design goal of the entire system It is to ensure the communication quality, which is measured by the channel state information (CSI) parameter. At present, the use of wireless electromagnetic waves in communication systems to transmit energy to devices needs to solve relatively large technical obstacles, so it is of great significance to study the mixed transmission of information and energy. [0003] At present, there are many schemes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04B17/391
CPCH04B7/0617H04B17/391Y02D30/70
Inventor 路崇谭洪舟廖普辉梁羽开区俊辉
Owner FOSHAN SHUNDE SUN YAT SEN UNIV RES INST