Full-duplex destination scrambled untrusted energy harvesting relay transmission method and system

An energy collection and transmission method technology, applied in the field of communication, can solve the problems of not fully utilizing the direct link from source to destination, low efficiency, eavesdropping on source information, etc., to maximize throughput performance and improve service life.

Active Publication Date: 2022-07-29
HUAQIAO UNIVERSITY
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

But in the traditional SWIPT system, when the relay is an untrusted relay, that is, the relay will eavesdrop on the source information while receiving the source information
Traditional scrambling methods include half-duplex destination interference and friendly node scrambling, which are inefficient and do not make full use of the direct link from source to destination

Method used

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  • Full-duplex destination scrambled untrusted energy harvesting relay transmission method and system
  • Full-duplex destination scrambled untrusted energy harvesting relay transmission method and system
  • Full-duplex destination scrambled untrusted energy harvesting relay transmission method and system

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Embodiment Construction

[0032] The present invention will be further described below through specific embodiments.

[0033] see figure 1 , an untrusted energy harvesting relay transmission system under full-duplex destination scrambling, including a source end S, an untrusted relay R and a destination end D, which form an amplifying and forwarding cooperative transmission model. The source S and the untrusted relay R are respectively set with a single antenna. The untrusted relay node adopts an energy harvesting protocol based on power distribution, which is credible when amplifying and forwarding information, and is untrustworthy when receiving information.

[0034] The destination end D is set with N antennas, which work in a simultaneous co-frequency full-duplex mode, and there is a direct link between the source end S and the destination end D. The method of minimizing the self-interference of the destination end is adopted, and the interference information is sent to the untrusted relay while r...

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Abstract

An untrusted energy collection relay transmission method and system under full-duplex destination scrambling, divides a time block T into two identical time slots, and in the first time slot T / 2, the source end S sends information To the untrusted relay R and the destination terminal D, the destination terminal D sends an interference signal to the untrusted relay R while receiving the information, and the untrusted relay R uses the power distribution-based energy collection protocol to collect energy and information Receiving; in the second time slot T / 2, the source end and the untrusted relay send information to the destination end D, and the destination end D uses the maximum ratio combining technology to combine the signals sent by the source end and the untrusted relay. The invention makes full use of the advantages of full duplex, energy collection, antenna selection and maximum ratio combining technology, and can significantly improve the system throughput and capacity.

Description

technical field [0001] The invention relates to the field of communications, in particular to a method and system for untrusted energy collection and relay transmission with full duplex destination scramble. Background technique [0002] When the relay node is an energy-constrained node, that is, the relay has no stable energy source, or the energy source is not continuous, the relay node is easily interrupted. Considering the rapid development of energy collection technology and the ease of collection of RF signals, if the relay node can collect wireless RF signals, the service life of the wireless network can be extended. [0003] Recently, simultaneous wireless information and power transfer (SWIPT) has been proposed and widely used. But in the traditional SWIPT system, when the relay is an untrusted relay, that is, the relay will eavesdrop on the source information while receiving the source information. The traditional scrambling methods include half-duplex destinatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/22H04W40/10H04W40/14H04W40/16
CPCH04W40/22H04W40/10H04W40/14H04W40/16
Inventor 赵睿徐伟杨裕琳王培臣周洁
Owner HUAQIAO UNIVERSITY
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