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Method for performing relay selection and sending power distribution by energy transmission full-duplex relay

A technology of energy transmission and transmission power, used in transmission monitoring, transmission system, duplex signal operation, etc.

Active Publication Date: 2019-02-01
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to research, there is currently no research and discussion on relay selection using full-duplex relay interference signals as additional energy sources in energy transmission networks

Method used

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  • Method for performing relay selection and sending power distribution by energy transmission full-duplex relay
  • Method for performing relay selection and sending power distribution by energy transmission full-duplex relay
  • Method for performing relay selection and sending power distribution by energy transmission full-duplex relay

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Embodiment Construction

[0077] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0078] like figure 1 As shown in the system model diagram, the system model of the present invention is a model of a single source node, a single destination node and multiple relay nodes. Both the source node S and the destination node D are equipped with one antenna, and the N relay nodes are equipped with two antennas, one is used to receive information and the other is used to send information. All relay nodes store a certain amount of initial energy so that the relay nodes can work normally before the energy is captured.

[0079] Its transmission process is as figure 2 As shown, it includes two stages. In the first stage, the source node sends information to the relay node. In the second stage, the relay node works in full-duplex mode. The source node sends energy to the relay node and amplifies and forwards the information to the destination node at the same ...

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Abstract

The invention discloses a method for performing relay selection and sending power distribution by energy transmission full-duplex relay. The transmission process comprises two stages: a source node sends information to a relay node at the first stage, and the relay node works in a full-duplex mode at the second stage; the source node sends energy to the relay node and amplifies and forwards information to a destination node; at this time, the relay node worked under the full duplex mode regards the self-interference as the extra energy capturing source of the node, and the energy capturing utilization is performed through a channel between a sending antenna and a receiving antenna of the relay node. According to multiple relay different forward and backward channel conditions, a destination node capacity formula related to different channel state information and source node and relay node sending power is used for selecting the optimal relay which enables the system capacity to reach the maximum in multiple relays. The method disclosed by the invention further comprises performing optimization on distribution parameters of the source node S sending first power Ps1 and second powerPs2 at the first stage and the second stage, and the system performance is further improved.

Description

technical field [0001] The invention relates to the field of wireless energy transmission of cooperative communication relays, in particular to a method for relay selection and transmission power allocation for energy transmission full-duplex relays. Background technique [0002] In recent years, with the rapid development of mobile communication technology and Internet technology, the widespread popularity of intelligent mobile terminals, and the traditional continuous power supply communication network, with the increase of network traffic, energy consumption will increase sharply. In traditional wireless communication networks with limited energy, network nodes usually rely on fixed batteries for power supply and lack a stable and continuous energy source. In order to maintain the operation of the network, periodic replacement or recharging is required. problems such as high or dangerous deployment. In order to provide continuous energy for the operation of wireless comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/309H04B17/336H04B17/382H04B17/40H04L5/14H04W40/10H04W40/16H04W72/04
CPCH04B17/309H04B17/336H04B17/382H04B17/40H04L5/14H04W40/10H04W40/16H04W72/0473
Inventor 廖学文刘彤高贞贞李乔
Owner XI AN JIAOTONG UNIV
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