Energy-carrying communication system two-way relay selection method based on received energy maximization

A technology for receiving energy and carrying energy for communication, which is applied in the field of two-way energy carrying communication systems to achieve the effect of improving energy collection and reducing the probability of energy interruption

Active Publication Date: 2016-04-20
SOUTHEAST UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, due to the time-varying nature of the energy obtained from the signal using ...

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  • Energy-carrying communication system two-way relay selection method based on received energy maximization
  • Energy-carrying communication system two-way relay selection method based on received energy maximization
  • Energy-carrying communication system two-way relay selection method based on received energy maximization

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Embodiment approach

[0051] like figure 1 As shown, based on the system of the present invention, one base station B and K relays R 1 , R 2 ... R K , consisting of a user U. The system is also equipped with a selection controller, which is used to use the present invention to detect channel information and select the relay R i . Different relays have a corresponding amplifier, which is used to amplify the received signal to meet the power limit of the relay; both the base station and the user have a decoder, which is used to decode the desired signal from the mixed signal. In the present invention, the base station and the relay are equipped with batteries, the user has no power supply, and the wireless charging technology is adopted to collect energy and charge from the received signal.

[0052] like figure 2 As shown, in the present invention, the relay is selected based on the criterion of maximizing received energy. After the transmission starts, the controller of the system detects th...

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Abstract

The invention discloses an energy-carrying communication system two-way relay selection method based on received energy maximization, which overcomes a problem of energy limitation in a communication process to a largest extent, enables the long-term and effective working of the system and is suitable for wireless communication. When the system works, multiple relay nodes for being selected by a user exist; an optimal relay is selected by a relay selection technology according to the technical scheme provided by the invention, and a base station and the user utilize the selected relay to transmit information. According to the energy-carrying communication system two-way relay selection method based on the received energy maximization, the user configures rechargeable batteries and collects energy from received signals, and the batteries are arranged on the base station and the relay; compared with random selection, the energy-carrying communication system two-way relay selection method based on the received energy maximization has the advantage that the interruption, caused by energy shortage, in the system is remarkably reduced.

Description

technical field [0001] The invention relates to a two-way energy-carrying communication system, in particular to a method for selecting a two-way relay in an energy-carrying communication system based on maximization of received energy. Background technique [0002] Wireless powered relay communication is a new network mode. Part of the energy collected by the user from the signal is used to decode the signal, and part of it is saved for the next communication. The user's battery can be remotely replenished through a microwave wireless power transmission device. (WPT), Wireless Powered Communications Network (WPCN) reduces the hassle of frequent manual battery replacement and charging, and has higher throughput, longer component life, and lower network operating costs. In addition, WPCN can control its transmit power, waveform, occupied time, frequency size, etc. according to different environments and service requirements. [0003] A relay is a connection device at the phy...

Claims

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Application Information

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IPC IPC(8): H04W40/22
CPCH04W40/22Y02D30/70
Inventor 李春国宋康曹欢欢杨绿溪郑福春
Owner SOUTHEAST UNIV
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