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Resource allocation method for wireless energy harvesting full-duplex cooperative relay system

A wireless energy and cooperative relay technology, applied in the field of energy-carrying communication, can solve problems such as unreasonable transmission signal modeling and poor system performance, and achieve the effect of simple method, good interrupt performance and reasonable resource allocation

Active Publication Date: 2021-05-28
XIAN UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The transmission signal modeling is unreasonable, and the system performance is poor

Method used

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  • Resource allocation method for wireless energy harvesting full-duplex cooperative relay system
  • Resource allocation method for wireless energy harvesting full-duplex cooperative relay system
  • Resource allocation method for wireless energy harvesting full-duplex cooperative relay system

Examples

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Effect test

Embodiment 1

[0044] exist figure 1 Among them, the resource allocation method of the wireless energy harvesting type full-duplex cooperative relay system in this embodiment consists of the following steps:

[0045] (1) Build a transmission signal model

[0046] Use a full-duplex cooperative relay system to transmit information. The system includes a source node, a full-duplex relay node, and a target node. Both the source node and the target node are equipped with a single antenna, and the full-duplex relay node configuration There are two antennas for sending and receiving, and each transmission cycle is divided into two time slots. In the first time slot, the source node sends information flow to the full-duplex relay node and the target node, and in the second time slot, the source node sends energy flow to the full-duplex relay node, and at the same time, the full-duplex relay node uses the received energy to decode and forward the information flow to the target node, generating echo ...

Embodiment 2

[0069] The resource allocation method of the wireless energy harvesting type full-duplex cooperative relay system in this embodiment consists of the following steps:

[0070] (1) Build a transmission signal model

[0071] This step is the same as in Example 1.

[0072] (2) Estimate channel state prediction information

[0073] This step is the same as in Example 1.

[0074] (3) Determine the power allocation coefficient α for each transmission cycle

[0075] This step is the same as in Example 1.

[0076] (4) Determine the time slot allocation coefficient β for each transmission cycle

[0077] Set up the equation as follows:

[0078]

[0079] Among them, η is the conversion efficiency, which depends on the energy conversion efficiency and the energy cost of decoding information. Use the golden section method of the one-dimensional search method to determine the time slot allocation coefficient β of each transmission cycle, and compare the first β according to β:1-β Th...

Embodiment 3

[0083] The resource allocation method of the wireless energy harvesting type full-duplex cooperative relay system in this embodiment consists of the following steps:

[0084] (1) Build a transmission signal model

[0085] In step (1) of constructing the transmission signal model, the P S is the transmission power of each transmission cycle, and the values ​​are not equal. The other steps of this step are the same as in Example 1.

[0086] Other steps are the same as in Example 1. Complete the resource allocation of the wireless energy harvesting full-duplex cooperative relay system.

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Abstract

A resource allocation method for a wireless energy harvesting full-duplex cooperative relay system, which consists of constructing a transmission signal model, estimating channel state prediction information, determining the power allocation coefficient α for each transmission cycle, and determining the time slot allocation for each transmission cycle The coefficient β and the outage probability P of the determination system out Step composition. Because the present invention adopts the existing full-duplex cooperative relay system, establishes a reasonable transmission signal model, proposes a resource allocation method, makes full use of limited spectrum resources, and improves the interruption performance of the system, which is different from the existing power allocation method compared to the transmit power P in each transmission cycle S When it is 0dBm ~ 20dBm, the system outage probability is reduced by 0.041 ~ 0.00084. The invention has the advantages of reasonable resource allocation, simple method, good interruption performance and the like, and can be used in the technical field of portable energy communication.

Description

technical field [0001] The invention belongs to the technical field of energy-carrying communication, and in particular relates to resource allocation of a wireless energy collection type full-duplex cooperative relay system. Background technique [0002] Wireless energy harvesting technology refers to the technology of energy harvesting through wireless energy transmission, which has been widely considered as a promising solution to prolong the working life of energy-constrained networks and realize green communication. Different from traditional energy harvesting technologies, wireless energy transmission can obtain a stable energy supply from radio frequency signals to meet various needs of wireless networks. As one of the main applications of this technology, the early research on wireless energy harvesting cooperative relay systems mainly focused on half-duplex operation, and two methods of time switching and power division were used to design relay receivers. In the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/309H04B17/382H04B17/391H04W40/22H04W72/04H04W72/08
CPCH04B17/309H04B17/382H04B17/391H04W40/22H04W72/0473H04W72/542
Inventor 卢光跃杨仕钊任远
Owner XIAN UNIV OF POSTS & TELECOMM
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