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Power allocation method in wireless energy supply MIMO relay system and wireless energy supply MIMO relay system

A relay system and wireless energy supply technology, which is applied in the field of data transmission, can solve the problems that energy is difficult to control and realize, and achieve the effect of reasonable energy

Inactive Publication Date: 2018-07-13
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common EH technologies mainly rely on natural resources (such as solar energy, wind energy), but there are limitations that the energy is difficult to control
Therefore, these techniques are difficult to implement in practical applications

Method used

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  • Power allocation method in wireless energy supply MIMO relay system and wireless energy supply MIMO relay system
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  • Power allocation method in wireless energy supply MIMO relay system and wireless energy supply MIMO relay system

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Embodiment Construction

[0021] 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. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0022] It should be noted that like numerals and let...

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Abstract

The embodiment of the invention provides a power allocation method in a wireless energy supply MIMO relay system and the wireless energy supply MIMO relay system. The power allocation method in the wireless energy supply MIMO relay system comprises the steps of decomposing a first channel matrix and a second channel matrix of the wireless energy supply MIMO relay system, thereby obtaining a seconddiagonal matrix corresponding to the second channel matrix; representing a second precoding matrix and a third precoding matrix corresponding to transmission information in a source node and a relaynode through utilization of a first diagonal matrix and the diagonal matrix, thereby obtaining a first influence factor and a second influence factor; obtaining an optimization formula by calculatingthe first influence factor and the second influence factor according to the first influence factor and the second influence factor; and allocating power of the wireless energy supply MIMO relay systemaccording to the optimized first influence factor and the optimized second influence factor which are obtained through calculation according to the optimization formula.

Description

technical field [0001] The present invention relates to the technical field of data transmission, in particular, to a power distribution method in a wireless powered MIMO relay system and a wireless powered MIMO relay system. Background technique [0002] Wireless sensor network (WSN) has many successful applications in intelligent transportation and environmental monitoring. However, WSNs are energy-constrained networks powered by finite-lifetime batteries. Although replacing the battery can prolong the life of the WSN, there will be a high cost associated with it. In addition, in many cases, due to the constraints of the physical environment, it is difficult to replace the battery. For example, sometimes sensors are embedded in building structures or even inside the human body. [0003] Therefore, energy harvesting (EH) in WSN is very attractive, that is, energy can be obtained from the external environment. Common EH technologies mainly rely on natural resources (such...

Claims

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Application Information

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IPC IPC(8): H04B7/0413H04B7/0456H04W52/34H04B7/0426H04B7/155
CPCH04B7/0413H04B7/0426H04B7/0456H04B7/15592H04W52/346
Inventor 李彬郭小龙谭元曹函宇
Owner SICHUAN UNIV
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